Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "energy-efficiency" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-100 z 800
Tytuł:
The energy efficiency gap in Turkish maritime transportation
Autorzy:
Konur, Olgun
Bayraktar, Murat
Pamik, Murat
Kuleyin, Barış
Nuran, Mustafa
Powiązania:
https://bibliotekanauki.pl/articles/259437.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy efficiency gap
maritime transportation
energy efficiency technologies
carbon emission
Opis:
The Turkish Merchant Shipping Industry has recently witnessed an increasing awareness of the importance to minimize environmental pollution and fuel oil consumption. Together with certain non-governmental organizations and media concerns about environmental protection, the International Maritime Organization (IMO) has been strict on controlling undesirable effects on the environment and, consequently, forcing shipping companies to minimize their emissions. Besides, today’s highly advanced technology companies over the world have developed various innovative systems that can be utilized to minimize carbon emission, thus giving assurance to relevant investors that their investments are most likely to turn out well with a considerable financial gain in the short or long term. Despite all such favorable developments, in a general look, shipping companies seem reluctant in making use of technologies providing efficiency in energy consumption. This reluctance has eventually brought about the term “Energy Efficiency Gap”. This research conducts a questionnaire, created by Acciaro et al. [1], among the shipping companies in Turkey. 20 respondent companies, who represent 26 percent of the Turkish owned merchant marine fleet of over 1000 gross tonnage in terms of deadweight cargo capacity, participated in the research. The Pearson correlation analysis was used, and interpretations were made according to the obtained statistical values. The aim of the research was to identify reasons and points restraining the use of new technologies regarding energy efficiency, as well as to develop proposals for the innovators in this field about how to overcome this handicap concerning technical and managerial aspects of gaining energy efficiency.
Źródło:
Polish Maritime Research; 2019, 3; 98-106
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the Intangibles: Socioeconomic Benefits of Improving Energy Efficiency
Ocena wartości niematerialnych: społeczno-ekonomiczne korzyści z poprawy efektywności energetycznej
Autorzy:
Bartoszewicz-Burczy, H.
Baumgartner, R. J.
Fawcett, T.
Fritz, M. M. C.
Killip, G.
Valladolid, T.
Violi, C.
Powiązania:
https://bibliotekanauki.pl/articles/952958.pdf
Data publikacji:
2018
Wydawca:
ENERGA
Tematy:
efektywność energetyczna
korzyść
energy efficiency
multi benefits of energy efficiency
Opis:
Poprawa efektywności energetycznej może przynieść wiele korzyści dla gospodarki i społeczeństwa. Jednak programy efektywności energetycznej są często oceniane jedynie na podstawie oszczędności energii bez uwzględnienia niematerialnych korzyści społeczno-ekonomicznych. W rezultacie całkowita wartość korzyści efektywności energetycznej w gospodarkach krajowych i w ujęciu globalnym jest znacząco zaniżona. Zasadniczym celem artykułu jest wskazanie i – na podstawie przedstawionych studiów przypadku – analiza wielorakich korzyści wynikających z poprawy efektywności energetycznej.
Poprawa efektywności energetycznej może przynieść wiele korzyści dla gospodarki i społeczeństwa. Jednak programy efektywności energetycznej są często oceniane jedynie na podstawie oszczędności energii bez uwzględnienia niematerialnych korzyści społeczno-ekonomicznych. W rezultacie całkowita wartość korzyści efektywności energetycznej w gospodarkach krajowych i w ujęciu globalnym jest znacząco zaniżona. Zasadniczym celem artykułu jest wskazanie i – na podstawie przedstawionych studiów przypadku – analiza wielorakich korzyści wynikających z poprawy efektywności energetycznej.
Źródło:
Acta Energetica; 2018, 4; 99-104
2300-3022
Pojawia się w:
Acta Energetica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy efficiency gap in Turkish maritime transportation
Autorzy:
Konur, Olgun
Bayraktar, Murat
Pamik, Murat
Kuleyin, Barış
Nuran, Mustafa
Powiązania:
https://bibliotekanauki.pl/articles/962688.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy efficiency technologies
carbon emission
energy efficiency gap
maritime transportation
Opis:
The Turkish Merchant Shipping Industry has recently witnessed an increasing awareness of the importance to minimize environmental pollution and fuel oil consumption. Together with certain non-governmental organizations and media concerns about environmental protection, the International Maritime Organization (IMO) has been strict on controlling undesirable effects on the environment and, consequently, forcing shipping companies to minimize their emissions. Besides, today’s highly advanced technology companies over the world have developed various innovative systems that can be utilized to minimize carbon emission, thus giving assurance to relevant investors that their investments are most likely to turn out well with a considerable financial gain in the short or long term. Despite all such favorable developments, in a general look, shipping companies seem reluctant in making use of technologies providing efficiency in energy consumption. This reluctance has eventually brought about the term “Energy Efficiency Gap”. This research conducts a questionnaire, created by Acciaro et al. [1], among the shipping companies in Turkey. 20 respondent companies, who represent 26 percent of the Turkish owned merchant marine fleet of over 1000 gross tonnage in terms of deadweight cargo capacity, participated in the research. The Pearson correlation analysis was used, and interpretations were made according to the obtained statistical values. The aim of the research was to identify reasons and points restraining the use of new technologies regarding energy efficiency, as well as to develop proposals for the innovators in this field about how to overcome this handicap concerning technical and managerial aspects of gaining energy efficiency.
Źródło:
Polish Maritime Research; 2019, 3; 98-106
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy efficiency gap in Turkish maritime transportation
Autorzy:
Konur, Olgun
Bayraktar, Murat
Pamik, Murat
Kuleyin, Barış
Nuran, Mustafa
Powiązania:
https://bibliotekanauki.pl/articles/962694.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy efficiency gap
maritime transportation
energy efficiency technologies
carbon emission
Opis:
The Turkish Merchant Shipping Industry has recently witnessed an increasing awareness of the importance to minimize environmental pollution and fuel oil consumption. Together with certain non-governmental organizations and media concerns about environmental protection, the International Maritime Organization (IMO) has been strict on controlling undesirable effects on the environment and, consequently, forcing shipping companies to minimize their emissions. Besides, today’s highly advanced technology companies over the world have developed various innovative systems that can be utilized to minimize carbon emission, thus giving assurance to relevant investors that their investments are most likely to turn out well with a considerable financial gain in the short or long term. Despite all such favorable developments, in a general look, shipping companies seem reluctant in making use of technologies providing efficiency in energy consumption. This reluctance has eventually brought about the term “Energy Efficiency Gap”. This research conducts a questionnaire, created by Acciaro et al. [1], among the shipping companies in Turkey. 20 respondent companies, who represent 26 percent of the Turkish owned merchant marine fleet of over 1000 gross tonnage in terms of deadweight cargo capacity, participated in the research. The Pearson correlation analysis was used, and interpretations were made according to the obtained statistical values. The aim of the research was to identify reasons and points restraining the use of new technologies regarding energy efficiency, as well as to develop proposals for the innovators in this field about how to overcome this handicap concerning technical and managerial aspects of gaining energy efficiency.
Źródło:
Polish Maritime Research; 2019, 3; 98-106
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wskaźnik eksploatacyjnej efektywności energetycznej jako element planowania przebiegu rejsu jednostki rybackiej
Energy efficiency operational indicator as an element for planning the trip of fishin vessel
Autorzy:
Głowacki, B.
Powiązania:
https://bibliotekanauki.pl/articles/112592.pdf
Data publikacji:
2017
Wydawca:
STE GROUP
Tematy:
zarządzanie efektywnością energetyczną
monitorowanie efektywności energetycznej
audyt efektywności energetycznej
energy efficiency management
energy efficiency monitoring
energy efficiency audits
Opis:
Wykorzystanie wskaźnika eksploatacyjnej efektywności energetycznej EEOI do analizy efektywności eksploatacyjnej i planowania przebiegu rejsu jednostek rybackich to rozwiązanie innowacyjne. W artykule przedstawiono autorskie oprogramowania dedykowanego dla tego typu jednostek, pozwalające na zbieranie w trybie on-line danych opisujących przebieg rejsu i pojedynczych działań wykonywanych przez jednostkę. Odpowiednia interpretacja i korelacja parametrów techniczno-eksploatacyjnych z wykorzystaniem programu komputerowego, umożliwi uzyskanie danych pozwalających na ocenę efektywności eksploatacyjnej, z uwzględnieniem stanu technicznego jednostki w dowolnych warunkach eksploatacyjnych. Pozwoli również na planowanie rejsu.
The use of the energy efficiency operational index to analyse the operational efficiency and planning of fishing vessels trips is an innovative solution. This article presents authoring software dedicated to this type of vessel, allowing online collection of data describing the course of the trip and individual activities performed by the fishing vessel. Correct interpretation and correlation of technical and operational parameters with the use of this program will allow to obtain data allowing to evaluate the energy efficiency, taking into account technical condition of the unit under any operating conditions. It will also allow you to plan your trip.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2017, 6, 6; 91-101
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluating an inland waterway cargo vessel’s energy efficiency indices
Autorzy:
Kalajdžić, Milan
Vasilev, Matija
Momčilović, Nikola
Powiązania:
https://bibliotekanauki.pl/articles/32898591.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
inland vessels
energy efficiency
energy efficiency of inland vessels
EEXI
EEDI
Opis:
Although the International Maritime Organization (IMO) introduced the energy efficiency requirements for ships more than a decade ago, to date, inland navigation has not been affected by corresponding regulations at all. Therefore, inland waterway vessels are left with no mandatory requirements that could push their technology into more energy efficient design. Fortunately, there are certain pioneering attempts to define energy efficiency criteria for inland vessels. This paper tries to gather and provide a review of such methods. Moreover, a typical Danube cargo inland vessel’s data are used to evaluate their current energy efficiency levels with respect to provisional criteria. Consequently, two methods are found and used here. They are both based on IMO’s energy efficiency concept but modified for the inland waterway vessels. The methods delivered a significant difference in applicability and were difficult to compare. Moreover, shallow and deep-water effects are explored in the same regard but provided unsound conclusions. The final results displayed discrepancies in energy efficiency levels for the same vessels and so the methodology should be improved and harmonised, if it is to be introduced as mandatory for inland waterway vessels. The analysis provided a glimpse into the current condition of the traditional design of the Danube inland fleet, with respect to the emerging energy efficiency policies.
Źródło:
Polish Maritime Research; 2022, 2; 27-34
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Efficiency Design Index as a new criterion in ship design
Autorzy:
Szelangiewicz, T.
Żelazny, K.
Powiązania:
https://bibliotekanauki.pl/articles/359076.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
Energy Efficiency Design Index
International Energy Efficiency Certificate for the ship
Opis:
Since 2013 Energy Efficiency Design Index (EEDI) for new ships will be enforced. Ships meeting the CO2 emission standards will be granted energy certificate required for their exploitation. The paper presents EEDI in the current form, the certification procedure, reduced CO2 emission planned for coming years, as well as potential for further EEDI value reduction.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 32 (104) z. 1; 97-101
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ISEE - Intelligent System of Energy Efficiency
Autorzy:
Ziąbka, Tomasz
Grzebielec, Andrzej
Rusowicz, Artur
Powiązania:
https://bibliotekanauki.pl/articles/132041.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
energy efficiency
control system
Opis:
Increasing energy efficiency is one of the priorities of the European 3x20 climate and enery package. The ISEE system - Intelligent Energy Efficiency Control is a response to the growing interest in energy saving. It is also closely related to energy efficiency and reduction of greenhouse gas emissions. The presented system also allows connecting renewable energy sources to the analyzed facilities. It is intended for a wide range of recipients.
Źródło:
Modern Engineering; 2020, 1; 6-10
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency improvement in SMEs – analysis of a pilot programme of energy efficiency management in Poland
Autorzy:
Korczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/106047.pdf
Data publikacji:
2016
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
energy efficiency
energy efficiency measures
energy efficiency programme for SMEs
energooszczędność
miary efektywności energetycznej
program efektywności energetycznej dla MŚP
Opis:
This article includes an overview of methods of energy efficiency improvement in small and medium-sized enterprises (SMEs) applied in Poland. It describes the experience of the implementation of energy efficiency programme in Poland, introduced in 2013 by Polish Agency for Enterprise Development’s. Evaluation of the programme shows that energy savings were over 6-times higher than expected by the programme’s author before its implementation and amounted to 53 TJ. Financial savings were almost 5-times higher than expected and amounted to PLN 7.3m. Guidelines for decision makers which would be responsible for the development of similar programmes in the future are presented.
Źródło:
Acta Innovations; 2016, 21; 60-70
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application the results of energy efficiency audit planning and implementation of fishing vessels modernisation
Autorzy:
Szczepanek, M.
Rajewski, P.
Barta, D.
Powiązania:
https://bibliotekanauki.pl/articles/27315959.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
fishing cutters
energy audit
energy efficiency
Opis:
The Energy Efficiency Design Index (EEDI) became mandatory for new ships as well as the Ship Energy Efficiency Management Plan (SEEMP) for all ships due to the MEPC 62 (July 2011) along with the adoption of amendments to MARPOL Annex VI by the Parties to the MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The Ship Energy Efficiency Management Plan (SEEMP), which has been obligatory since 2013, did not to cover fishing cutters but triggered the implementation of energy efficiency audits due to fishing limits, high fuel prices, and free freight market. A research team of the Maritime University of Szczecin conducted energy efficiency audits on several fishing vessels operated on the Baltic Sea and provided the results to the shipowners. On their grounds, the shipowners started seeking methods to reduce energy consumption. They began modernizing the vessels using the information collected in the reports on energy audits. Usually, the modernization process is performed in severa stages. Apart from energy recovery installations, fishing vessels were furnished with the latest technologies aimed at the reduction of energy consumption and at making ships greener. The paper presents results of the said process at the selected fishing cutters operating on the Baltic Sea. The paper includes also the recommendations on the directions of the following stages of the audits.
Źródło:
New Trends in Production Engineering; 2018, 1, 1; 567-572
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Air conditioning systems in data center
Autorzy:
Grzebielec, Andrzej
Kłos, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/132006.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
air conditioning
datacenter
energy efficiency
Opis:
Data center cooling is a specific issue. High heat flux density and maintaining rigorous operating conditions require suitable cold from the cooling system. The article lists the most common methods of data center cooling and classification of technological systems in data center facilities.
Źródło:
Modern Engineering; 2020, 1; 26-37
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental study of a sorption cold storage supporting the air conditioning system
Autorzy:
Grzebielec, Andrzej
Szelągowski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/132075.pdf
Data publikacji:
2019
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
adsorption
energy efficiency
cold storage
Opis:
Techniques related to elimination of environmental pollution are divided into two main trends. These are primary and secondary solutions. Primary solutions are based on the creation / selection of technologies that do not emit pollutants, secondary solutions are used in the situation that pollutants are already generated. Elimination is made by selected technological processes. When using residential, office or industrial buildings, emissions are primarily associated with the use of energy carriers such as electricity, heat or cold. During electricity production, pollution is related mostly to the atmosphere degradation. Thus, any solution that reduces energy consumption or improves the energy efficiency of buildings is the primary method of environment protection. This article proposes and investigates an idea of cold storage system based on an adsorbent bed (silica gel), which aims to reduce the energy consumption of the domestic air conditioning system. As a result of experimental research, it was shown that for a building with a volume of 1000m 3 and multiples of air exchanges at 0.5 level, a silica gel bed with a volume of 1.63 m3 is required in order to continuously unload the air conditioning system for 8 hours (while outside air temperature exceeding 25oC).
Źródło:
Modern Engineering; 2019, 1; 10-15
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Energy-Efficient Proactive Routing Scheme for MANET : Game Theoretical Approach of Forwarding with Selfish Nodes
Autorzy:
Sahnoun, A.
Habbani, A.
El Abbadi, J.
Powiązania:
https://bibliotekanauki.pl/articles/963872.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
game theory
MANETs
energy efficiency
Opis:
In Mobile Ad-hoc Networks, nodes exchange packets with each other using intermediate nodes as relays. Since nodes in MANETs are battery powered, energy conservation is a crucial issue. Accepting relay all request may not be in the best interest of a node. But if many nodes prefer not to consume energy in relaying packets on behalf of others, the overall performance of routing in network will be influenced. In this paper we address the energyefficient routing problem in MANETs with selfish nodes. We modeled this problem as a game-theoretic constraint optimization; we defined the utility of each node as a weighted difference between a performance metric and some transmission costs. A motivate mechanism is proposed in order to induce nodes to forwarding cooperation. Each node independently implements the optimal equilibrium strategy under the given constraints. Simulation results by NS3 simulator show that our proposed approach can improve system performance in network lifetime and packet delivery ratio.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 4; 399-404
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the influence of the primary energy factor of hydropower plants in the methodology for assessing the energy performance of buildings
Autorzy:
Tamašauskas, Rokas
Šadauskienė, Jolanta
Šadauskaitė, Monika
Powiązania:
https://bibliotekanauki.pl/chapters/31234003.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
primary energy
renewable energy
hydropower
energy efficiency
Opis:
There is currently no common or standardized procedure for certification of the energy performance of buildings, as each EU Member State takes into account the specificities of its own construction sector when implementing the provisions of Directive 2010/31/EU. This usually depends on two features: the purpose of the building and the climate. Therefore, the purpose of this paper is to evaluate the influence of the hydropower primary energy factor for assessing the energy performance of buildings. For this purpose, non-renewable primary energy factor values were analyzed regarding actual energy production and consumption data from 19 Lithuanian hydroelectric plants. The results of the studies show that the average value of the non-renewable primary energy factor of hydropower plants is 0.059.
Źródło:
Innovations – Sustainability – Modernity – Openness. Energy; 67-76
9788366391291
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kumulacja przedsięwzięć służących poprawie efektywności energetycznej realizowanych przez niezależne podmioty a białe certyfikaty w świetle przepisów nowej ustawy o efektywności energetycznej
Accumulation of energy efficiency improvement measures, realized by independent entities, and white certificates in light of the provisions of the new act on energy efficiency
Autorzy:
Superson-Polowiec, B.
Jurzyk, N.
Powiązania:
https://bibliotekanauki.pl/articles/394088.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
efektywność energetyczna
kumulacja przedsięwzięć służących poprawie efektywności energetycznej
świadectwo efektywności energetycznej
energy efficiency
cumulation of energy efficiency improvement measures
certificate of energy efficiency
Opis:
Zwiększenie efektywności energetycznej stanowi obecnie jeden z głównych celów polskiej i unijnej polityki energetycznej. Uzyskaniu oczekiwanej oszczędności energii służyć mają liczne projekty o zasięgu krajowym, jak i międzynarodowym, wspierające inicjatywę podejmowania przedsięwzięć proefektywnościowych. Poprawa efektywności energetycznej w dużej mierze uzależniona jest od aktywności odbiorców końcowych. Współczesne uwarunkowania rynkowe coraz częściej wymuszają konieczność wprowadzania innowacyjnych rozwiązań, które pozwalają na osiągnięcie założonych celów. Za takimi rozwiązaniami powinny nadążać regulacje prawne. Autorki artykułu podejmują próbę analizy zagadnienia związanego z funkcjonującym od paru lat w Polsce systemem wsparcia efektywności energetycznej. 1 października 2016 r. wejdą w życie przepisy nowej ustawy o efektywności energetycznej, zgodnie z którą potwierdzeniem planowanej do zaoszczędzenia ilości energii finalnej wynikającej z przedsięwzięcia lub przedsięwzięć tego samego rodzaju służących poprawie efektywności energetycznej jest świadectwo efektywności energetycznej. Świadectwo efektywności energetycznej nie przysługuje jednak dla przedsięwzięcia lub przedsięwzięć tego samego rodzaju, jeżeli w wyniku ich realizacji uzyskuje się oszczędność energii w ilości mniejszej niż 10 ton oleju ekwiwalentnego średnio w ciągu roku. Niniejszy artykuł ma na celu udzielenie odpowiedzi na pytanie, czy na gruncie krajowych i unijnych regulacji prawnych możliwe jest przyznanie świadectwa efektywności energetycznej podmiotowi reprezentującemu kilka niezależnych podmiotów, u których realizowane są przedsięwzięcia służące poprawie efektywności energetycznej, przy założeniu, że dopiero suma oszczędności u pojedynczych, niezależnych podmiotów przewyższa wymóg ilościowy określony na poziomie 10 ton oleju ekwiwalentnego średnio w ciągu roku.
Increasing energy efficiency is now one of the main objectives of the Polish and EU energy policy. To obtain the expected energy saving numerous projects supporting the initiative of making pro-efficiency projects are implemented at the national and international level. Improving energy efficiency largely depends on the activity of the end users. Today’s market conditions are increasingly forcing the necessity of introducing innovative solutions that allow the expected goals to be achieved. Regulations should follow such solutions. The authors of the article attempt to analyze issues related to the energy efficiency support system functioning for the past several years in Poland. On October 1, 2016 the new Act on Energy Efficiency will enter into force. Under this Act, energy efficiency certificate will constitute the confirmation of the planned amount of final energy to be saved that results from the venture or ventures of the same kind used to improve energy efficiency. An energy efficiency certificate will not be issued for the venture or ventures of the same kind if the amount of the energy saved due to their implementation is less than the yearly average of 10 tons of the oil equivalent. This article aims to answer the question of whether, under national and EU legislation, energy efficiency certificates may be granted to an entity representing several independent entities, which are implementing energy efficiency ventures, assuming that only the sum of the savings of each independent entity exceeds the quantity requirement determined as the yearly average of 10 tons of the oil equivalent?
Źródło:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN; 2016, 95; 81-92
2080-0819
Pojawia się w:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energoeffektivnost’ zdanij kak faktor biosfernoj sovmestimosti gorodov
Energy efficiency buildings as a factor of the compatibility biosphere of the cities
Autorzy:
Sergejcuk, O.
Powiązania:
https://bibliotekanauki.pl/articles/2065096.pdf
Data publikacji:
2012
Wydawca:
Politechnika Częstochowska
Tematy:
biosphere-compatible buildings
energy efficiency
renewable energy
Opis:
Rassmotreny principy proektirovania biosferosovmestimyh zdanij. Eti principy vklucaut optimizaciu ekspluatacii zdanij, vybora stroitel’nyh materialov, stepen’ ispol’zovania vozobnovlaemyh istocnikov energii, stepen’ osteklenia. Stroitel’nye normy i pravila v stranah SNG, analiziruutsa po otnoseniu k proektirovaniu zdanij v biosferosovmestimyh gorodah.
Principles of creating of biosphere-compatible buildings are considered. These principles include the optimization of service life of buildings, choice of structural materials, renewable energy, and level of glazing of buildings. Building regulations of the CIS countries are analyzed with respect to design of buildings in biosphere-compatible cities.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2012, 1 (9); 111--118
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Specific energy consumption – the comparison of belt conveyors
Autorzy:
Suchorab, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/89009.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
belt conveyor
energy efficiency
specific energy consumption
Opis:
Belt conveyors (BCs), because of their high efficiency, are widely used for bulk material handling in the mining industry. However, due to the high level of conveyors' energy consumption, the belt conveyor systems generate a large part of mining costs. Therefore, the current solutions mostly focus on implementing new management strategies, which find energy consumption as a key indicator in designing belt conveyor systems. Belt conveyor equipment selection, conveying systems, operation, applied mining technology are considered to be areas where improvement of belt conveyors' energy efficiency may be achieved. Moreover, they can be used to implement novel standards for BC equipment and the proposal of defining new quality standards and creating BCs' classification has been already outlined. The main idea of the paper is to compare the values of specific energy consumption (SEC) of BCs with regard to the inclination angle of a conveyor route which results from technological needs. The multiple regression is used to find a relationship between two basic independent variables – the volume of transported material and conveyor's inclination angle – and a dependent variable (SEC). The procedure enables to determine the value of SEC which is required for lifting the material. Presented results prove that the value of SEC required for lifting the material is crucial for the interpretation of the SEC value when it comes to energy efficiency comparison.
Źródło:
Mining Science; 2019, 26; 263-274
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy efficiency in Poland in 2008-2018 in the context of sustainable development
Autorzy:
Pacana, Andrzej
Czerwińska, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/1818431.pdf
Data publikacji:
2020
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
energy efficiency
ODEX index
energy management
energy production
Opis:
Analysing the Polish energy sector, changes in the market can be seen as a consequence of growing role of EU regulations, which increasingly affect the functionality of national and local markets. As a general rule, the basis of regulation is set out in the adopted strategy papers, indicating developmental desires within the energy market. The energy policies that are taken, which define the implementation measures, should guarantee the secu-rity of investment in the long term. The increase in energy efficiency generates significant financial savings while generating benefits for the environment, industry, transport or households. As part of monitoring the level of en-ergy efficiency, the ODYSSEE-MURE programme has developed the ODEX indicator. The aim of thestudy was to analyze the level of efficiency in Poland in general and with an indication of three main sectors, as well as the level of Polish energy savings in the years 2008-2018. The research showed that the increase in energy efficiency of the Polish economy in the period under consideration is systematically increasing. Overall, between 2008 and 2018, the average rate of energy efficiency improvement was 1. 7% per year. On the other hand, savings achieved in 2018 within the indicated sectors amounted to 0.10 Mtoe.
Źródło:
Energy Policy Studies; 2020, 2 (6); 29--42
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy efficiency in Poland in 2008-2018 in the context of sustainable development
Autorzy:
Pacana, Andrzej
Czerwińska, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/1818438.pdf
Data publikacji:
2020
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
energy efficiency
ODEX index
energy management
energy production
Opis:
Analysing the Polish energy sector, changes in the market can be seen as a consequence of growing role of EU regulations, which increasingly affect the functionality of national and local markets. As a general rule, the basis of regulation is set out in the adopted strategy papers, indicating developmental desires within the energy market. The energy policies that are taken, which define the implementation measures, should guarantee the secu-rity of investment in the long term. The increase in energy efficiency generates significant financial savings while generating benefits for the environment, industry, transport or households. As part of monitoring the level of en-ergy efficiency, the ODYSSEE-MURE programme has developed the ODEX indicator. The aim of thestudy was to analyze the level of efficiency in Poland in general and with an indication of three main sectors, as well as the level of Polish energy savings in the years 2008-2018. The research showed that the increase in energy efficiency of the Polish economy in the period under consideration is systematically increasing. Overall, between 2008 and 2018, the average rate of energy efficiency improvement was 1. 7% per year. On the other hand, savings achieved in 2018 within the indicated sectors amounted to 0.10 Mtoe.
Źródło:
Energy Policy Studies; 2020, 2 (6); 29--42
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy efficiency monitoring of a refrigeration unit
Autorzy:
Jaszczak, S.
Łokietek, T.
Powiązania:
https://bibliotekanauki.pl/articles/114062.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
refrigeration unit
SCADA system
energy efficiency
Opis:
In the paper, a monitoring system of a refrigeration unit is presented. This system consists of several measurement elements e.g. (pressure, temperature, energy, etc. sensors) connected using a serial RS485 network. A measurement level is a source of data for both SCADA environment and a PLC controller which are essential elements of the whole control system. The first stage of the study was related to the selection of measurement devices and a construction of a serial network. The authors also described how to link a serial 485 network with a PLC controller and how to introduce it into TCP/IP network. In the first part of the paper, there is presented a refrigeration unit as a subject of the monitoring. Then the authors describe a theoretical background needed for the energy efficiency calculation. After that the system structure with selected details about hardware integration and SCADA software implementation is presented. The final part contains selected real time experiments to show typical working modes of the refrigeration unit and to prove the efficiency of the developed monitoring system.
Źródło:
Measurement Automation Monitoring; 2016, 62, 6; 202-205
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency in logistics
Autorzy:
Humpl, D.
Powiązania:
https://bibliotekanauki.pl/articles/409473.pdf
Data publikacji:
2011
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
logistics
energy efficiency
storage
handling
transport
Opis:
The paper contributed describes potentials for enhancing energy efficiency in logistics. Modern logistics management is able to increase transport efficiency by means of innovative concepts. Measures for enhancing energy efficiency in logistics range from political governance to technical approaches throughout the whole logistics chain. Various options will be discussed and a future outlook will be given.
Źródło:
Research in Logistics & Production; 2011, 1, 1; 17-28
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy losses in the hydraulic rotational motor definitions and relations for evaluation of the efficiency of motor and hydrostatic drive
Autorzy:
Paszota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/259279.pdf
Data publikacji:
2010
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrostatic drive
hydraulic motor
energy efficiency
Opis:
The evaluation methods of energy losses and efficiency of the hydraulic rotational motors for the hydrostatic drives, used so far in the scientific research and in the industrial practice, give wrong results because the parameters that the losses and efficiencies are a function of are themselves dependent on those losses. The aim of the paper is to define the motor operating parameters, developed powers, energy losses and efficiencies and also to show the respective relations. Conclusions are drawn, based on the analyses of presented definitions and relations, on the motor energy investigations.
Źródło:
Polish Maritime Research; 2010, 2; 44-54
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical and mathematical models of the torque of mechanical losses in the pump used in a hydrostatic drive
Autorzy:
Paszota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/260065.pdf
Data publikacji:
2011
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrostatic drive
displacement pump
energy efficiency
Opis:
The paper presents theoretical and mathematical models of the torque of mechanical losses in the pump with theoretical (constant) capacity qPt per one shaft revolution (with constant theoretical working volume VPt) and geometrical (variable) capacity qPgv per one shaft revolution (with variable volume VPgv). The models may be used in the laboratory and simulation investigations of the pump energy efficiency and the hydrostatic driveefficiency.
Źródło:
Polish Maritime Research; 2011, 4; 28-35
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expert system on efficiency evaluation of continuous flow grain dryer
Autorzy:
Walczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/92842.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
energy efficiency
dryer
drying
expert system
Opis:
The purpose of the paper is to present a concept of energy efficiency and financial evaluation of counter flow dryer. Energy efficiency and many other efficiency indexes of the dryer and all additional devices like heater, heat exchangers, tubing and fans are calculated. Expert system provides also the financial evaluation of the investment. Many investments could be considered. The system provides the user with suggestions about the best dryer for him/her. Expert system also enables evaluation of energy saving improvements. The energy savings for dryer installation sections are calculated. Cost savings are compared with investment value. The best energy saving project could be selected on the base of selection algorithm. Expert system could be used for existing and new-designed dryers.
Źródło:
Studia Informatica : systems and information technology; 2006, 1(7); 179-193
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of energy efficiency improvement by modernisation of hydraulic installations at a fishing cutter at the baltic sea
Autorzy:
Szczepanek, M.
Barta, D.
Michalska-Pożoga, I.
Powiązania:
https://bibliotekanauki.pl/articles/27315958.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
fishing cutter
hydraulic installation
energy efficiency
Opis:
The Energy Efficiency Design Index (EEDI) became mandatory for new ships as well as the Ship Energy Efficiency Management Plan (SEEMP) for all ships due to the MEPC 62 (July 2011) along with the adoption of amendments to MARPOL Annex VI by the Parties to the MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The Ship Energy Efficiency Management Plan (SEEMP), which has been obligatory since 2013, did not to cover fishing cutters but triggered the implementation of energy efficiency audits due to fishing limits, high fuel prices, and free freight market. All the above caused that ship-owners started seeking ways for saving money and keep their business profitable. Apart from energy recovery installations, fishing vessels have been furnished with the latest technologies aimed at the reduction of energy consumption and at making ships greener. A research team of the Maritime University of Szczecin conducted energy efficiency audits on several fishing vessels operated on the Baltic Sea and stated that up to 40% of the energy is used during fishing operations by hydraulic devices installed at the fishing vessels. The paper presents the measurement results of energy consumption in typical operational states based on a selected fishing cutter operating at the Baltic Sea. The paper includes also the recommendations in terms modernization of hydraulic installations and the changes of control methods for devices with hydraulic drive. The calculations are also presented herein and they prove that it is possible to reduce energy consumption by a fishing cutter even by 20% while maintaining the unchanged operating parameters of the hydraulic devices.
Źródło:
New Trends in Production Engineering; 2018, 1, 1; 561-566
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Instrumenty poprawy efektywności energetycznej w Polsce
The instruments to improve energy efficiency in Poland
Autorzy:
Komorowska, A.
Mirowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/394702.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
efektywność energetyczna
instrumenty poprawy efektywności energetycznej
energia finalna
energy efficiency
instruments to improve energy efficiency
final energy
Opis:
Działania w kierunku poprawy efektywności energetycznej są zasadniczą częścią polityki zrównoważonego rozwoju państwa. Prowadzą one do racjonalizacji gospodarki surowcami energetycznymi oraz osiągnięcia oszczędności energii w łańcuchu przemian energetycznych (od wytwarzania aż do wykorzystania przez odbiorcę końcowego). W artykule przedstawiono bieżące instrumenty poprawy efektywności energetycznej stosowane w Polsce oraz zmiany, które zaproponowano w rządowym projekcie nowelizacji ustawy o efektywności energetycznej. Zarówno mechanizmy horyzontalne, jak i sektorowe będą miały istotny wpływ na osiągnięcie celów pakietu klimatyczno-energetycznego wyznaczonych przez Unię Europejską. W Polsce cele te są realizowane za pomocą projektów infrastrukturalnych (Program Operacyjny Infrastruktura i Środowisko 2014–2020), Inteligentnych Sieci Energetycznych, Projektów Transportowych oraz przedsięwzięć związanych z poprawą efektywności energetycznej w budynkach mieszkalnych i użyteczności publicznej. Na szczególną uwagę zasługują środki stosowane w przemyśle i sektorze MŚP.
Every actions aimed at improving energy efficiency are an essential part of the country’s sustainable development policy. These actions lead to the rationalization of energy resources and to achieve energy savings in the energy conversion chain (from production to use by the end-user). The article presents the current instruments used to improve energy efficiency in Poland and the changes that have been proposed in the government draft amendment to the Energy Efficiency Act. Horizontal and sector mechanisms will have a significant impact on the achievement of the European Union (EU) energy and climate package targets for 2020. In Poland, the goals are carried out through infrastructure projects (The Operational Programme of Infrastructure and Environment 2014–2020), Smart Energy Networks, Transport Projects and Projects related to the improvement of energy efficiency in residential and public buildings. The measures used in the industry and the SME sector are particularly noteworthy.
Źródło:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN; 2016, 92; 297-306
2080-0819
Pojawia się w:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza eksploatacyjnego wskaźnika efektywności energetycznej statku w aspekcie ekonomicznym i ekologicznym
Analysis of the Energy Efficiency Operational Indicator in Economic and Ecological Aspect
Autorzy:
Wysocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/341522.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
Tematy:
eksploatacyjny wskaźnik efektywności energetycznej
konstrukcyjny wskaźnik efektywności energetycznej
plan zarządzania efektywnością energetyczną statku
energy efficiency operational indicator
energy efficiency design index
energy efficiency management plan
Opis:
Artykuł przedstawia wybrane narzędzia do poprawy i oszacowania efektywności energetycznej statku oraz analizę eksploatacyjnego wskaźnika efektywności energetycznej statku (EEOI).Głównym zadaniem rozpatrywanych narzędzi jest ograniczenie emisji gazów cieplarnianych, a w szczególności dwutlenku węgla, do atmosfery podczas eksploatacji statku. Celem przeprowadzonej analizy było wykazanie możliwości stosowania EEOI w czasie eksploatacji statku.
This article presents selected tools for improving and estimating vessel energy efficiency and analysis of energy efficiency operational indicator EEOI. The main task of the tools under consideration is to reduce greenhouse gases emissions and, in particular, emission into the atmosphere during ship operation. The purpose of the study was to demonstrate the applicability of the EEOI during ship operation.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Gdyni; 2017, 100; 200-213
1644-1818
2451-2486
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Gdyni
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach for the Developmentof Energy-Efficient Machine Tools
Autorzy:
Neugebauer, R.
Frieß, U.
Paetzold, J.
Wabner, M.
Richter, M.
Powiązania:
https://bibliotekanauki.pl/articles/971148.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
energy efficiency
machine tool
product development
Opis:
The life cycle costs of machine tools are much higher determined by their energy costs than what is often roughly assessed. The growing demand for consumer goods and especially possibilities of individual mobility in major parts of the developing world - e. g. Asia - will lead to serious problems in meeting the demand for an abundant energy supply and will increase the cost for energy further in the near-term future. Harder efforts are necessary to "reach more with less" - using less energy than today to reach a defined goal in production. The paper deals with a methodology to design machine tools with a high "energy efficiency". Based on the property-driven design methodology by Weber a systematic approach is shown to enhance the design of machine tools. Energy efficiency is a new additional and central property in the design process. To attain these given properties characterisations are determined by the engineer to fulfil these properties. On the developing-path the characterisations are defined in more detail step by step, and after each step it is assured if the accounted properties where met by the defined characteristics. The approach is to first analyse existing machine tools and therefore define prior energy consumers. The identified major consumers are afterwards systematically addressed to reduce their energy consumption. The result is an enhanced machine tool with state-of-the-art energy usage. This addresses the objectives of the EU and takes pressure of the energy supply by reducing the energy demand in production.
Źródło:
Journal of Machine Engineering; 2009, 9, 2; 51-62
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical evaluation of impact factors to the energy consumption of machine tools
Autorzy:
Wittstock, V.
Kolouch, M.
Paetzold, J.
Powiązania:
https://bibliotekanauki.pl/articles/100171.pdf
Data publikacji:
2013
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
energy efficiency
machine tool
statistical analyses
Opis:
In this paper, a method for the evaluation of the energy consumption of machine tools is presented. For this purpose, the energy consumption of various machine tools has been investigated experimentally. In order to increase the evaluation basis, measured values of energy consumption were also taken from literature. The evaluation contains an analysis of various factors concerning the productivity and the size of the investigated machine tools. This analysis is capable of detecting the impact factors to increase the energy-efficiency of production systems. It can further reduce the effort required for data acquisition when various machine tools are compared.
Źródło:
Journal of Machine Engineering; 2013, 13, 2; 79-91
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Efficiency in 5G Communications – Conventional to Machine Learning Approaches
Autorzy:
Shahid, Muhammad Khalil
Debretsion, Filmon
Eyob, Aman
Ahmed, Irfan
Faisal, Tarig
Powiązania:
https://bibliotekanauki.pl/articles/1839308.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
5G
energy efficiency
wireless networks
Opis:
Demand for wireless and mobile data is increasing along with development of virtual reality (VR), augmented reality (AR), mixed reality (MR), and extended reality (ER) applications. In order to handle ultra-high data exchange rates while offering low latency levels, fifth generation (5G) networks have been proposed. Energy efficiency is one of the key objectives of 5G networks. The notion is defined as the ratio of throughput and total power consumption, and is measured using the number of transmission bits per Joule. In this paper, we review state-of-the-art techniques ensuring good energy efficiency in 5G wireless networks. We cover the base-station on/off technique, simultaneous wireless information and power transfer, small cells, coexistence of long term evolution (LTE) and 5G, signal processing algorithms, and the latest machine learning techniques. Finally, a comparison of a few recent research papers focusing on energy-efficient hybrid beamforming designs in massive multiple-input multiple-output (MIMO) systems is presented. Results show that machine learningbased designs may replace best performing conventional techniques thanks to a reduced complexity machine learning encoder.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 4; 1-9
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency analysis in the design of walking machines
Autorzy:
Zielińska, T.
Powiązania:
https://bibliotekanauki.pl/articles/281568.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
energy efficiency
walking machines
design methods
Opis:
The problem of energy efficiency in the design of walking machine is discussed in this paper. Attention is paid to the calculation of motor powers, gear ratios and to the choice of energetically efficient leg configuration. The motor power is evaluated bassing on the knowledge about the range of reaction forces during the hexapod movement, assuming that the body moves at the constant velocity, maintaining the heigt of the centre of gravity above the ground what is expected of hexapods. The results presented were applied to the walking machine being currently built.
Analiza efektywności w projektowaniu maszyn kroczących. W artykule przedstawiono problem efektywności energetycznej, jaki musi być uwzględniony przy projektowaniu maszyny kroczącej. Uwagę poświęcono zagadnieniu doboru mocy silników, doboru przekładni oraz wyborowi energetycznie efektywnej konfoguracji nóg. Moc silników została wyznaczona na podstawie znajomości rozkładu sił reakcji w czasie chodu maszyny kroczącej, przy ruchu ze stałą prędkością i przy stałej wysokości środka ciężkości maszyny nad podłożem. Przyjęte założenia są typowe dlachodu maszyn sześcionożnych. Omówione wyniki zostały zastosowane przy projektowaniu aktualnie budowanej maszyny kroczącej
Źródło:
Journal of Theoretical and Applied Mechanics; 2000, 38, 3; 693-708
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical and mathematical models of the torque of mechanical losses in a hydraulic rotational motor for hydrostatic drive
Autorzy:
Paszota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/258728.pdf
Data publikacji:
2010
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrostatic drive
hydraulic motor
energy efficiency
Opis:
The paper presents theoretical and mathematical models of the torque of mechanical losses in a hydraulic rotational motor with constant capacity qMt per one shaft revolution (with constant theoretical working volume VMt) and with variable capacity qMgv = bM qMt per one shaft revolution (with variable geometrical working volume VMgv). The models are to be used in the laboratory and simulation investigations of motor energy losses aimed at evaluation of the motor energy efficiency and hydrostatic drive efficiency.
Źródło:
Polish Maritime Research; 2010, 3; 18-25
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency of a biofuel production system
Autorzy:
Wasiak, A.
Orynycz, O.
Powiązania:
https://bibliotekanauki.pl/articles/406826.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
EROEI
biofuels
production systems
Opis:
Manufacturing engineering is supposed to provide analyses related to various aspects of manufacturing and production in order to maximise technological, energy, and economic gains in relevant production processes. The present paper gives a recapitulation of several publications by present authors, presenting considerations of the energy efficiency of biofuel production. The energy efficiency is understood as the ratio of energy obtained from biofuels produced basing on crops from a particular area to the energy required to satisfy needs of all subsidiary processes assuring correct functioning of the production system, starting from operations aimed to obtain agricultural crops, and ending with the conversion of the crops onto biofuels. Derived by the present authors, the mathematical model of energy efficiency of biofuel production is extended to a more general form, and applied to the analysis of quantitative relations between energy efficiency of sc. “energy plantations”, and further elements of biofuel production system converting harvested biomass into biofuel. Investigations are aimed towards the determination of the role of biomass as a source of energy.
Źródło:
Management and Production Engineering Review; 2017, 8, 1; 60-68
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Edukacja na rzecz efektywności energetycznej – przegląd wybranych programów
Energy efficiency education – a review of selected programs
Autorzy:
Pamuła, Anna
Powiązania:
https://bibliotekanauki.pl/articles/548596.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
edukacja
efektywność energetyczna
energy efficiency
education
Opis:
Artykuł prezentuje wybrane zagadnienia związane z edukacją na rzecz efektywności energetycznej, zwłaszcza z edukacją młodych odbiorców energii. Edukacja prowadzona przez przedsiębiorstwa energetyczne nie jest dla nich prostym zadaniem. Współpraca tych jednostek ze szkołami przynosi jednak określone efekty. W artykule zaprezentowano aspekty i kierunki rozwoju kierunków edukacji na rzecz efektywności energetycznej. Ponadto zawarto analizę wybranych programów edukacyjnych dla szkół, prowadzonych przez największe polskie przedsiębiorstwa energetyczne oraz analizę preferencji młodych odbiorców dotyczących form edukacji na podstawie danych z badań własnych, przeprowadzonych w regionie łódzkim w 2013 i w 2016 roku.
The paper describes some important aspects of energy efficiency education programs. It is a difficult task to motivate utilities to engage in energy efficiency fostering strategies, but nowadays it is very common to find energy efficiency programs implemented by utilities. A lot of them cooperate with many types of schools with good results. The directions of the energy efficiency education programs are briefly discussed in the paper. The short review of education programs offered by polish energy distribution companies as well as short analysis of students’ preferences based on the survey conducted in 2013 and 2016 are presented.
Źródło:
Nierówności Społeczne a Wzrost Gospodarczy; 2018, 53; 252-264
1898-5084
2658-0780
Pojawia się w:
Nierówności Społeczne a Wzrost Gospodarczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of room and luminaire characteristics on general lighting in interiors
Autorzy:
Pracki, P.
Powiązania:
https://bibliotekanauki.pl/articles/201481.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
interior lighting
energy efficiency
Opis:
General lighting is the most common way of illuminating interiors and the source of electricity consumption in buildings. This fact forces the search for lighting solutions effective both for people and the environment. In this study the impact of room and luminaire characteristics on general lighting conditions and energy efficiency in interiors is considered. In rooms of different sizes and reflectances, seventeen luminaire types with various light distributions were arranged in uniform layouts. The levels of average illuminance, uniformity and normalised power density related to two horizontal working planes were calculated. The impact of working plane reduction, room index and reflectances, lighting class and luminous intensity distribution of luminaire on the considered parameters was investigated. The use of the reduced working plane resulted in the increase in the average illuminance (7.7% on average), uniformity (33% on average) and normalised power density (23% on average). The impact of the room index and lighting class on the average illuminance and normalised power density was significant while the impact of the luminaire luminous intensity distribution and room reflectances was low. The normalised power density levels of the general electric lighting in interiors, with luminaire luminous efficacy of 100 lm/W, are in the following range: 1.08‒3.42 W/m2 per 100 lx. Based on these results a normalised power density level of 2 W/m2 per 100 lx is recommended for designing and assessing the new general electric lighting systems in buildings.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 3; 447-457
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency – selected thermo-ecological problems
Autorzy:
Ziębik, Andrzej
Stanek, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/239928.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
system analysis
exergy
thermo-ecology
energy ecological
efficiency
Opis:
The paper is devoted to some problems connected with last modification of EU directive on energy efficiency, viz.: free choice of the measure concerning the improvement of energy efficiency, i.e. final or primary energy consumption, corresponding energy savings or energy-consumption index; however without cumulative consumption or cumulative savings of primary energy. In EU directive it has been stressed the importance of measurements systems (reliable measurement information); but has not been recommended any advanced validation of measurements results, nor energy auditing or algorithms of calculating the energy savings due to improvement of energy efficiency concerning large industrial plants. Evaluation of complex buildings should be realized by means of the system method (input-output analysis). The separate problem is devoted to application of thermo-ecological approach in the analysis of complete results of improving the energy efficiency. Human activity is connected with the depletion of nonrenewable resources, including primary energy, due to not only production of consumer goods but also the necessity of compensating the unfavourable effects of harmful emissions from energy-technological processes. Therefore the index of energy-ecological efficiency has been proposed as the most competent evaluation of improvement energy efficiency of production processes and systems.
Źródło:
Archives of Thermodynamics; 2020, 41, 2; 277-299
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie „białych certyfikatów” w poprawie efektywności energetycznej przedsiębiorstw
The meaning of "white certificates" in improving the energy efficiency of enterprises
Autorzy:
Adamczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/113484.pdf
Data publikacji:
2014
Wydawca:
STE GROUP
Tematy:
Białe Certyfikaty
efektywność energii
przedsięwzięcia poprawy efektywności energii
white certificates
energy efficiency
energy efficiency improvement projects
Opis:
Poprawa efektywności energetycznej uważana jest za najbardziej ekonomiczny sposób zmniejszenia zużycia energii w gospodarce. W artykule poddano ocenie jeden z instrumentów polityki energetycznej „białe certyfikaty”, uznane jako innowacyjny instrument polityki na rzecz poprawy efektywności energetycznej. Ocenę tego instrumentu poddano w oparciu o wyniki przeprowadzonego przetargu na certyfikaty efektywności energetycznej.
Improving energy efficiency is considered to be the most economical way to reduce energy consumption in the economy. In this paper I analyze of one energy policy instrument, namely a White Certificates (WhC) scheme as an innovative policy instrument for energy efficiency improvement. The evaluation of this instrument were based on the results of the tender for energy efficiency certificates.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2014, 2 (8); 11-20
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improved Water-Filling Power Allocation for Energy-Efficient Massive MIMO Downlink Transmissions
Autorzy:
Noor Shahida, M. K.
Nordin, R.
Insmail, M.
Powiązania:
https://bibliotekanauki.pl/articles/227000.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
Massive MIMO
power allocation
spectral efficiency
Opis:
Energy Efficiency (EE) is becoming increasingly important for wireless communications and has caught more attention due to steadily rising energy costs and environmental concerns. Recently, a new network architecture known as Massive Multiple-Input Multiple-Output (MIMO) has been proposed with the remarkable potential to achieve huge gains in EE with simple linear processing. In this paper, a power allocation algorithm is proposed for EE to achieve the optimal EE in Massive MIMO. Based on the simplified expression, we develop a new algorithm to compute the optimal power allocation algorithm and it has been compared with the existing scheme from the previous literature. An improved water filling algorithm is proposed and embedded in the power allocation algorithm to maximize EE and Spectral Efficiency (SE). The numerical analysis of the simulation results indicates an improvement of 40% in EE and 50% in SE at the downlink transmission, compared to the other existing schemes. Furthermore, the results revealed that SE does not influence the EE enhancement after using the proposed algorithm as the number of Massive MIMO antenna at the Base Station (BS) increases.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 1; 79-84
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność energetyczna firmy - wymogiem rynku i czasów w których żyjemy
Energy efficiency of a company - a requirement of the market and times in which we live
Autorzy:
Zaręba, K.
Powiązania:
https://bibliotekanauki.pl/articles/272189.pdf
Data publikacji:
2009
Wydawca:
Górnośląska Wyższa Szkoła Pedagogiczna im. Kardynała Augusta Hlonda
Tematy:
efektywność energetyczna
energia
firma
wydajność
energy efficiency
energy
company
efficiency
Opis:
W artykule przedstawiono uwarunkowania i działania prowadzące do podniesienia efektywności energetycznej w firmie, pokreślono znaczenie edukacji i możliwości pokonywania ograniczeń. Uwypuklono ekonomiczny i ekologiczny aspekt wydajności energetycznej. Wskazano możliwości zastosowania matematycznych metod jej interpretacji. Podkreślono, że efektywność energetyczna jest kluczowym elementem niezbędnym do osiągnięcia klimatyczno - energetycznych celów Unii Europejskiej, w tym również Polski.
The article presents the overall frame and policies aimed at improving the energy efficiency in companies; the importance of education and the environmental aspect of energy efficiency have been stressed. The potential for applying mathematical methods for efficiency inter-pretation has been presented. Energy efficiency has been underlined as the key element of achieving the climatic and energy objectives in Poland and the European Union.
Źródło:
Problemy Ekologii; 2009, R. 13, nr 2, 2; 83-87
1427-3381
Pojawia się w:
Problemy Ekologii
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-Efficiency Measures at the Mexican Maquiladoras
Narzędzia na rzecz poprawy efektywności energetycznej w meksykańskich maquiladoras
Autorzy:
Munguia, Nora
Valazquez, Luis
Esquer, Javier E
Ojeda, Sara
Ellenbecker, Michael
Will, Markus
Delakowitz, Bernd
Powiązania:
https://bibliotekanauki.pl/articles/529853.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
energy efficiency
energy audits
Mexico
maquiladoras
climate change
Opis:
The energy consumption worldwide by the industrial sector is expected to keep increasing during the coming years; generating greenhouse gas (GHG) emissions as unwanted byproducts. For that reason, industrial facilities must take concrete initiatives in order to decouple their production growth from their CO2 emission generation in order to decrease their contributions to global warming. Concerned that this is a world-wide problem, Mexican maquiladoras have started several energy-efficiency initiatives. The aim of this article is to present significant results of a descriptive and analytical study that has been conducted into three maquiladoras located at northwestern Mexico of the first two stages of the Cleaner Production - Energy Efficiency program proposed by the United Nations Environment Programme. Findings reveal that, although electrical devices seem work efficiently, it is still possible to address energy waste. Additionally, attaching the energy-efficiency approach to the cleaner production framework was found a complicated task because, unlike emissions and toxic residues, energy inefficiencies are not easily visible, verifiable, or measurable.
Źródło:
Central and Eastern European Journal of Management and Economics (CEEJME); 2015, 3; 217-228
2353-9119
Pojawia się w:
Central and Eastern European Journal of Management and Economics (CEEJME)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planowanie rozwoju lokalnych systemów energetycznych z uwzględnieniem wymagań efektywności energetycznej
Planning the development of local energy systems including energy efficiency requirements
Autorzy:
Buriak, J.
Powiązania:
https://bibliotekanauki.pl/articles/268719.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
planowanie energetyczne
efektywność energetyczna
energy planning
energy efficiency
Opis:
Przedstawiono założenia zaawansowanego planowania rozwoju lokalnych systemów energetycznych. Opisano etapy tego typu planowania i sposób ujęcia w nim wymagań efektywności energetycznej. Omówiono rolę audytorów efektywności energetycznej oraz wymagania odnośnie do ich kształcenia.
The assumptions to advanced local energy planning were introduced. The stages of planning the development were described and the recognition of the energy efficiency in planning process was mentioned. The role of energy efficiency auditors and the requirements for their training was discussed.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2012, 31; 189-194
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
General strength, energy efficiency (EEDI), and energy wave criterion (EWC) of deadrise hulls for transitional mode
Autorzy:
Kanifolskyi, Oleksandr
Powiązania:
https://bibliotekanauki.pl/articles/32913092.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy wave criterion
energy efficiency factor
design accelerations
Opis:
In the modern world, environmental issues come to the fore. The document of MARPOL for reducing the emission of pollutants into the atmosphere relates to the energy efficiency coefficient EEDI . This coefficient is directly related to the power of the main engine and, accordingly, to the water resistance. The way to reduce the energy efficiency factor EEDI by increasing the relative length \( \frac{L}{ \sqrt[3]{V}} \) of the ship was proposed in this article. To determine the maximum value of the relative length, knowledge of the general strength of the vessel is required. The value of the relative section modulus of an equivalent girder for a small vessel of transitional mode is defined. The result of the graphic solution of two equations is the value of such a relative section modulus. This parameter is required to determine the limiting value of the relative length and to find solutions to reduce the coefficient EEDI . Comparative analysis of the obtained data with the data of the strength and weight of the H-girder with a length similar to the ship was conducted. The formula for determining the limiting value of the relative length was obtained from the equation of general strength. For a preliminary assessment of the future project of the ship, in terms of permissible design accelerations and the possibility of the ship moving against a sea wave of a certain height, a graph was built based on the application of the energy wave criterion EWCand the requirements of various classification societies.
Źródło:
Polish Maritime Research; 2022, 3; 4-10
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study on the Propulsion Performance in the Actual Sea by means of Full-scale Experiments
Autorzy:
Kayano, J.
Yabuki, N.
Sasaki, N.
Hiwatashi, R.
Powiązania:
https://bibliotekanauki.pl/articles/116354.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Propulsion Performance
Propulsion
mechanical engineering
Energy Efficiency Design Index (EEDI)
Ship Energy Efficiency Management Plan (SEEMP)
Energy Efficiency Operational Indicator (EEOI)
Self Propulsion Factors
Power Curves
Opis:
The IMO has adopted Energy Efficiency Design Index (EEDI), Ship Energy Efficiency Management Plan (SEEMP) and Energy Efficiency Operational Indicator (EEOI) in order to reduce GHG emissions from international shipping. And, the shipping industry is required to develop and improve the energy saving ship operation technologies to meet the above IMO guideline. The weather routing is one of the energy saving navigation technologies and widely adopted by oceangoing merchant ships. The effectiveness of the weather routing mainly depends on the accuracy of weather forecast data and the ship’s propulsion performance prediction. The propulsion performance in the actual sea is usually predicted using the Self Propulsion Factors obtained by model tests. It is necessary to understand the propulsion performance characteristics in the actual sea conditions for the improvement of propulsion performance prediction. From the above points of view, the authors performed full‐scale experiments using a training ship in order to investigate the propulsion performance characteristics in the actual sea. This paper describes the analysis results on the characteristics of Power Curves and Self Propulsion Factors under various weather and sea conditions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 4; 521-526
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interactive calculator for assessment of the structure of energy consumption
Autorzy:
Ratner, S
Ratner, P
Powiązania:
https://bibliotekanauki.pl/articles/117736.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
energy efficiency
energy audit
interactive calculator
energy consumption structure
Opis:
In this paper we present a simple interactive calculator, which can be used in individual flats and houses, office buildings and educational institutes such as colleges and schools, for assessment of electricity use by different categories of equipment. The user indicates only type of equipment and its approximate time of work. The program outputs the structure of energy consumption in graphic format. The results of test procedures and the ways for improvement of the program are discussed.
Źródło:
Applied Computer Science; 2014, 10, 2; 32-43
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of the energy distribution of SABC circuits
Autorzy:
Gong, D.
Nadolski, S.
Sun, C.
Klein, B.
Kou, J.
Powiązania:
https://bibliotekanauki.pl/articles/110565.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
energy efficiency
Semi-Autogenous mill
energy distribution
energy benchmarking
Opis:
Improving the energy efficiency of large grinding mills is of great importance to reduce the energy cost of mineral processing. The ratio of SAG mill to ball mill’s energy consumption varies greatly among SABC operations. Thus far, very few research studies have been conducted to demonstrate how the SAG mill or ball mill responses to the change of circuit energy distribution in terms of comminution efficiency. The present study investigated the energy performance of an operating SABC circuit at variable circuit energy distributions. An energy benchmarking model was used to assess the comminution energy efficiency of SAG mill, ball mill, and overall circuit. It is found that the target SABC circuit achieves the highest overall energy efficiency when 37.6% of the total circuit energy is distributed to the SAG mill and 62.4% to the ball mill. The maximum energy efficiency of this SABC circuit is approximately 25% when compared to the minimum practical energy required to carry out an equivalent comminution duty. The study also showed that the ball mill is more sensitive to the variation in circuit energy distribution than the SAG mill.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 4; 1245-1252
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Regulations on Market Efficiency from the Viewpoint of High-efficiency Cogeneration
Studium nad efektywnością mechanizmów wspierających na przykładzie wysokosprawnej kogeneracji węglowej
Autorzy:
Sołtysik, M.
Mucha-Kuś, K.
Powiązania:
https://bibliotekanauki.pl/articles/397290.pdf
Data publikacji:
2014
Wydawca:
ENERGA
Tematy:
cogeneration
energy efficiency
system wsparcia
kogeneracja
efektywność
Opis:
Formation of a common European energy market implies the necessity of making adjustments to domestic law and adopting market development possibilities in order to meet European Union regulations. Implementation of system support to develop high-efficiency cogeneration was one of those aspects. Several years of such a mechanism functioning allow one to: analyze those regulations and their impact on sub-sector development, make a deep cost analysis and discuss its continuation in the future as well. Taking into account the background of implementation of EU regulations, this paper presents the results of volume-price estimations, current trends, evaluation of property rights regulated in the system, the analysis of market participants’ behaviours, as well as legal issues within this context.
Tworzenie wspólnego, europejskiego rynku energii implikuje konieczność dostosowywania prawa krajowego i kierunków rozwoju sektora do determinantów unijnych. Jednym z tych elementów było wprowadzenie systemu wsparcia rozwoju wysokosprawnej kogeneracji. Kilkuletnia historia funkcjonowania mechanizmu pozwala na dokonanie analiz zasadności wsparcia, ocenę jego wpływu na rozwój podsektora, szczegółową analizę kosztów oraz przeprowadzenie wnioskowania w zakresie kontynuacji mechanizmu. W artykule przedstawione zostały, na tle genezy wprowadzenia systemu wsparcia, wyniki analiz wolumetryczno-cenowych, bieżące trendy, ocena bilansu praw majątkowych w systemie, próba oceny zachowania uczestników rynku oraz problematyka legislacyjna w przedmiotowym zakresie.
Źródło:
Acta Energetica; 2014, 3; 134-143
2300-3022
Pojawia się w:
Acta Energetica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Area Energy Efficiency of LTE Macro Base Stations in Different Environments
Autorzy:
Shahab, S. N.
Abdulkafi, A. A.
Zainun, A. R.
Powiązania:
https://bibliotekanauki.pl/articles/308271.pdf
Data publikacji:
2015
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
Area Energy Efficiency
LTE
Macro Base Station
Opis:
Energy efficiency (EE) of wireless telecommunications has become a new challenge for the research community, governments and industries in order to reduce CO2 emission and operational costs. EE of base stations (BSs) in cellular networks is a growing concern for cellular operators to not only maintain profitability, but also to reduce the overall negative impact to the environment and economic issues for wireless network operators. In this paper, a framework focuses on the Area Energy Efficiency (AEE) evaluation of LTE BSs is presented. The parameters affect on the AEE and the coverage area of LTE BS in different scenarios are investigated. AEE analysis has been done using a few key performance indicators including transmit power, bandwidth, load factor with the assumption of different scenarios (urban, suburban and rural). The simulation results show that the LTE BSs have better AEE in an urban environment for cell radius less than 750 m compare with the suburban and rural environments. Furthermore, it is obvious that there is a strong influence of traffic load, BW and transmission power on AEE of LTE network. On the other hand, AEE increases significantly as the BW size increases. Finally, it has been shown that the AEE of LTE macro BS decreases with increasing the percentage of traffic load for all scenarios.
Źródło:
Journal of Telecommunications and Information Technology; 2015, 1; 59-66
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Aware Data Centers and Networks: a Survey
Autorzy:
Arabas, P.
Powiązania:
https://bibliotekanauki.pl/articles/308876.pdf
Data publikacji:
2018
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
energy efficiency
green networks
resource allocation
HPC
Opis:
The past years have brought about a great variety of clusters and clouds. This, combined with their increasing size and complexity, has resulted in an obvious need for power-saving control mechanisms. Upon presenting a basis on which such solutions - namely low-level power control interfaces, CPU governors and network topologies – are constructed, the paper summarizes network and cluster resources control algorithms. Finally, the need for integrated, hierarchical control is expressed, and specific examples are provided.
Źródło:
Journal of Telecommunications and Information Technology; 2018, 4; 26-36
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Energy Consumption in Agro-Industrial Wastewater Treatment Plant
Autorzy:
Dąbrowski, W.
Żyłka, R.
Rynkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/124802.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
dairy industry
meat industry
wastewater
energy efficiency
Opis:
Energy consumption during waste water treatment is a very important factor affecting food industry plants. Apart from highly efficient treatment of dairy and meat sewage, a low energy consumption is required in order to lower its costs. During the research period, parameters of raw and treated sewage were tested (BOD,COD, N-total, P-total). Also, the energy consumption from selected processes as well as total consumption were measured. Indicators of energy consumption per m3 and removed load were calculated. It was found that biological treatment and aeration played the main role in energy consumption in both objects. It was respectively 40 and 47% for Bielmlek and JBB plants. The second biggest energy consuming stage of treatment in both objects was sludge processing. Energy required to process excessive sludge equaled 30% of the total energy usage in both plants. Energy consumption factors related to hydraulic flow gave results in the range from 2.05 to 3.3 kWhm-3and from 2.72 to 3.23 kWhm-3 for Bielmlek and JBB plants respectively. The research will be continued in order to optimize energy consumption, while retaining high efficiency treatment in food industry WWTPs. Finally, a mathematical model will be prepared for optimizing energy consumption in food industry WWTPs.
Źródło:
Journal of Ecological Engineering; 2016, 17, 3; 73-78
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ukrainian perspectives of using world experience in investing in energy innovations
Autorzy:
Lazarenko, Dmitry
Krutogorskyi, Iaroslav
Powiązania:
https://bibliotekanauki.pl/articles/692537.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
alternative energy
renewable sources
energy generation
energy efficiency
energy policy
Opis:
The article presents the world economic trends of alternative energy. An analysis of international programs and innovative projects that are implemented and used in the energy sector is introduced. Conceptual proposals and innovative research in the field of alternative energy are represented. The author also suggests ways of formation of effective energy management and rational energy policy.
Źródło:
Research Papers in Economics and Finance; 2017, 2, 1; 27-32
2543-6430
Pojawia się w:
Research Papers in Economics and Finance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An FPGA-based proof of a concept solution for datacentre energy efficiency improvement
Autorzy:
Kraft, M.
Tomczyński, J.
Mańkowski, T.
Fularz, M.
Powiązania:
https://bibliotekanauki.pl/articles/114644.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
datacentre
accelerator
FPGA
energy efficiency
image processing
Opis:
As the Internet becomes more and more widespread, the power consumption associated with the Internet infrastructure grows rapidly, contributing to a significant increase in operational costs of service providers. The paper presents a proof of a concept solution consisting of an FPGA expansion card with a dedicated image processing accelerator, connected to a server via PCI Express interface. The use of a dedicated accelerator allows faster completion of the task performed by the server, resulting in over tenfold improvement in energy efficiency.
Źródło:
Measurement Automation Monitoring; 2016, 62, 5; 160-162
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studium nad efektywnością mechanizmów wspierających na przykładzie wysokosprawnej kogeneracji węglowej
Influence of regulations on market efficiency from the viewpoint of high-efficiency cogeneration
Autorzy:
Sołtysik, M.
Mucha-Kuś, K.
Powiązania:
https://bibliotekanauki.pl/articles/267262.pdf
Data publikacji:
2013
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
system wsparcia
kogeneracja
efektywność
cogeneration
energy efficiency
Opis:
Tworzenie wspólnego, europejskiego rynku energii implikuje konieczność dostosowywania prawa krajowego i kierunków rozwoju sektora do determinantów unijnych. Jednym z tych elementów było wprowadzenie systemu wsparcia rozwoju wysokosprawnej kogeneracji. Kilkuletnia historia funkcjonowania mechanizmu, pozwala na dokonanie analiz zasadności wsparcia, ocenę jego wpływu na rozwój podsektora, szczegółową analizę kosztów oraz przeprowadzenie wnioskowania w zakresie kontynuacji mechanizmu. W referacie przedstawione zostały na tle genezy wprowadzenia systemu wsparcia, wyniki analiz wolumetryczno-cenowych, bieżące trendy, ocena bilansu praw majątkowych w systemie, próba oceny zachowania uczestników rynku oraz problematyka legislacyjna w przedmiotowym zakresie.
Formation of common European energy market implies the necessity of making adjustments to domestic low and adopt market development possibilities in order to meet European Union regulations. Implementation of system support to develop high-efficiency cogeneration was one of those aspects. Several years of functioning such mechanism allow to: analyze those regulations and their impact on sub-sector development, make a deep cost analysis and discuss its continuation in the future as well. Taking into account the background of implementation of EU regulations, this paper presents the results of volumeprice estimations, current trends, evaluation of property rights regulated in the system, the analysis of market participants behaviors, as well as legal issues within this cont.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2013, 33; 47-50
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Consumption Models For MISO-UWB and TR-MISO-UWB Systems
Autorzy:
El Abboubi, A.
Elbahhar, F.
Heddebaut, M.
Elhillali, Y.
Powiązania:
https://bibliotekanauki.pl/articles/226206.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
time reversal
MISO systems
UWB
Opis:
This paper, an energy consumption model is developed and exploited to evaluate the electrical energy consumption of ultra-wideband impulse radio (UWB-IR) systems. We develop the energy consumption models and our comparative study, on the one hand, for a system based single-input singleoutput (SISO) configuration and a multiple-input single-output (MISO) and, on the other hand, for a time reversal TR-MISO configuration and for MISO alone configuration. We consider an indoor propagation environment based on the 802.15.4a channel model. The results show very different behaviors depending on the propagation conditions, the number of antennas used, or on the number of transmitted symbols. Using such a model, a radiofrequency designer can obtain significant inputs to optimally select an adequate configuration to design an adaptive energyaware UWB-IR system.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 3; 285-291
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical Pretreatment of Lignocellulosic Biomass for Methane Fermentation in Innovative Reactor with Cage Mixing System
Autorzy:
Rusanowska, P.
Zieliński, M.
Dudek, M.
Dębowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/125456.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
pretreatment
lignocellulose
methane production
net energy efficiency
Opis:
Disintegration of lignocellulosic biomass for energy purposes has been extensively studied. The study aimed to investigate the influence of crushed and uncrushed lignocellulosic biomass on the biogas production in an innovative reactor. The substrate fed to the reactor was Sida hermaphrodita silage mixed with cow manure. The bioreactor had an innovative design of the mixing cage system. The mixing system of the bioreactor consisted of two cylindrical stirrers in the form of a cage. The cages simultaneously rotate around the axis of the bioreactor at against their own axes. The bioreactor is currently presented under the Record Biomap program (Horizon 2020). The bioreactor was operated at organic compounds loading of 2 kg/(m3∙d) and 3 kg/(m3∙d) and hydraulic retention time was 50 d and 33 d, respectively. The biogas production under the organic compounds loading of 2 kg VS/(m3∙d) was 680 L/kg VS from crushed lignocellulosic biomass and 570 L/kg VS from uncrushed lignocellulosic biomass. The biogas production under the organic compounds loading 3 kg VS/(m3∙d) was 730 L/kg VS from crushed lignocellulosic biomass and 630 L/kg VS from uncrushed lignocellulosic biomass. The crushing of substrate did not influence the methane content in the biogas. In all experiments, the biogas comprised about 54% of methane. The net energy efficiency was calculated as well.
Źródło:
Journal of Ecological Engineering; 2018, 19, 5; 219-224
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Throughput, Spectral, and Energy Efficiency of 5G Massive MIMO Applications Using Different Linear Precoding Schemes
Autorzy:
Salah, Ibrahim
Rahouma, Kamel Hussein
Hussein, Aziza I.
Mabrook, M. Mourad
Powiązania:
https://bibliotekanauki.pl/articles/2203002.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
throughput
massive MIMO
spectral efficiency
energy efficiency
trade-off
Opis:
On fifth-generation wireless networks, a potential massive MIMO system is used to meet the ever-increasing request for high-traffic data rates, high-resolution streaming media, and cognitive communication. In order to boost the trade-off between energy efficiency (EE), spectral efficiency (SE), and throughput in wireless 5G networks, massive MIMO systems are essential. This paper proposes a strategy for EE 5G optimization utilizing massive MIMO technology. The massive MIMO system architecture would enhance the trade-off between throughput and EE at the optimum number of working antennas. Moreover, the EE-SE tradeoff is adjusted for downlink and uplink massive MIMO systems employing linear precoding techniques such as Multiple -Minimum Mean Square Error (M-MMSE), Regularized Zero Forcing (RZF), Zero Forcing (ZF), and Maximum Ratio (MR). Throughput is increased by adding more antennas at the optimum EE, according to the analysis of simulation findings. Next, utilizing M MMSE instead of RZF and ZF, the suggested trading strategy is enhanced and optimized. The results indicate that M-MMSE provides the best tradeoff between EE and throughput at the determined optimal ratio between active antennas and active users equipment’s (UE).
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 1; 185--191
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prospects for the Use of Renewable Energy Sources while Increasing the Energy Efficiency Level of Office Buildings to the Level of nZEB
Autorzy:
Deshko, Valerii
Bilous, Inna
Buyak, Nadiya
Naumchuk, Olena
Powiązania:
https://bibliotekanauki.pl/articles/27315748.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
energy efficiency
heat supply
energy source
thermal protection
energy demand
Opis:
According to the Energy Performance of Buildings Directive (EPBD), all new buildings must be constructed using technologies that will ensure almost zero energy consumption by the building through renewable energy sources and an energy-efficient thermal envelope. To assess the possibilities of reconstructing an existing building following the requirements of the EPBD in Ukraine, we have presented possible ways to modernise an office in Kyiv using renewable energy sources (biomass, heat pump) at different levels of thermal protection. Based on dynamic modelling results in the DesignBuilder software environment, the technical, environmental and economic aspects of building modernisation using near-Zero Energy Buildings (nZEB) technologies have been investigated. In particular, the authors have analysed the possibilities of using different modes of heat pump operation to provide heat to a building of different levels of thermal protection in the GeoTSOL software environment. The results obtained can be used to assess the benefits of improving the energy efficiency of a building using different types of renewable energy sources.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 148--158
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ehnergeticheskaja ehffektivnost vyrashhivanija podsolnechnika na Juge Ukrainy
Energy efficiency of sunflower production in the South of Ukraine
Autorzy:
Havrysh, V.
Powiązania:
https://bibliotekanauki.pl/articles/76779.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
energy efficiency
energy resource
sunflower
yield
technological operation
Ukraine
Opis:
Energy efficiency of sunflower production (irrigated and not irrigated soil) in condition of the south of Ukraine has been analyzed. The structure of energy resource using in according to technological operation has been determined.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 2
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficient small inland passenger shuttle ferry with hybrid propulsion - concept design, calculations and model tests
Autorzy:
Kunicka, Magdalena
Litwin, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/259786.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship hybrid propulsion
energy efficiency
green shipping
energy management
Opis:
In recent years, there has been a significant development in “green” and energy efficient propulsion systems, which fits into the general trend of environmentally friendly “green shipping”. The pursued goal is to construct a safe passenger ship that is low in energy demand and equipped with a highly energy efficient, emission-free propulsion system. The paper presents main problems encountered by designers of a small, hybrid-powered ferry powered lithium batteries. The conducted research allowed to create a design of an energy efficient hull shape, which decreases the demand for energy. Completed remote control model tests resulted in a proposal of an energy efficient and safe propulsion system with good manoeuvring capabilities. Measurements completed on an existing ferry permitted completing energy balance and forming an energy management policy. The paper contains the emission calculations computed for the existing ferry that are necessary for the environmental impact analysis. The soon to be constructed, newly designed vessel will provide a valuable contribution to hybrid-propulsion, energy management and unmanned technologies research.
Źródło:
Polish Maritime Research; 2019, 2; 85-92
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency in rail vehicles: analysis of contemporary technologies in reducing energy consumption
Autorzy:
Skobiej, Kinga
Powiązania:
https://bibliotekanauki.pl/articles/32222591.pdf
Data publikacji:
2023-12-28
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
energy efficiency
rail vehicles
energy consumption
fuel cells
optimization
Opis:
The article focuses on the problem of energy intensity in rail vehicles and analyzes current technologies aimed at reducing it. The author discusses innovations and strategies aimed at increasing energy efficiency in rail transportation. He also outlines the challenges of reducing energy consumption in this sector and future development prospects. The main focus of the article is on the problem of energy demand in rail vehicles, with a special emphasis on railroads. The author analyzes the current challenges of high energy consumption in rail transportation and presents various technologies that have been introduced to minimize this consumption. The article includes descriptions of technological innovations such as advanced energy management systems, efficient braking systems that recover energy, and the use of low aerodynamic drag materials. The author also discusses strategies to improve the energy efficiency of rail vehicles, including both existing ones and those planned for market introduction. One of the key points of the article is also a presentation of the challenges of reducing energy consumption in the rail sector. These include the need to adapt existing infrastructure, the financial aspects of introducing new technologies, and acceptance by consumers and operators, among others.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2023, 3-4; 64-70
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Źródła i bariery efektywności energetycznej polskich przedsiębiorstw
Autorzy:
Leszczyńska, Agnieszka
Lee, Ki-Hoon
Powiązania:
https://bibliotekanauki.pl/articles/609854.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
energy efficiency
management
organization
efektywność energetyczna
zarządzanie przedsiębiorstwem
Opis:
The requirement of the increase in the energy efficiency of enterprises results from social, ecological and political factors. In spite of the fact that solutions in the energy efficiency are known, a question about barrier/motives for such action remains open. The article presents the results of the research of Polish organizations of the industry sector with reference to the energy efficiency. Main barriers and stimuli, as well as a readiness of companies to implement solutions were presented.
Wymóg wzrostu efektywności energetycznej przedsiębiorstw wynika z czynników społecznych, ekologicznych i politycznych. Pomimo tego, że znane są rozwiązania służące poprawie efektywności energetycznej, otwarte pozostaje pytanie o bariery/motywy takich działań. Wskazuje się przy tym na kluczową rolę barier, tj. koszty transakcyjne i asymetrię informacji, zaś na płaszczyźnie organizacyjnej – brak kapitału, brak czasu, ryzyko zaburzeń produkcji. Z drugiej strony można określić czynniki pozwalające minimalizować wspomniane bariery. Są to: tworzenie strategii energetycznej, przywództwo, zewnętrzne wsparcie finansowe. Dotychczasowe badania potwierdziły, że bariery te mają charakter regionalny i sektorowy, co wskazuje na potrzebę badań kierunkowych. Niniejszy artykuł prezentuje wyniki badań polskich przedsiębiorstw sektora przemysłowego w odniesieniu do efektywności energetycznej. Przedstawione zostały główne bariery i stymulatory oraz gotowość firm do wprowadzania tego typu rozwiązań.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2016, 50, 3
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring instruments used at the research and accuracy of defining the efficiency of drive systems
Autorzy:
Skorek, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/246257.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
energy efficiency
accuracy
measurements
measurement results
measuring instruments
Opis:
The aim of the article is to look at the possibility of accurately determining the energy efficiency of drive systems thanks to the use of high quality sensors and measuring instruments. The types of measuring instruments used on the test stand are presented. The results of experimentally determined efficiencies and simulationally determined efficiencies of two hydrostatic systems with throttling control were compared, which are fed with a constant capacity pump. The choice of the analysed systems is not accidental. There is still a view in the literature about limited possibilities of energy systems with proportional control. The research stand was very carefully designed and made. The applied measuring instruments were characterized by high accuracy of measurements. The issues related to the determination of energy losses and energy efficiency of the engine or drive system, which should be determined as dependent on the physical quantities independent of these losses, were also discussed. For laboratory verification, measurement methods were developed, the test stand was adapted and automated. It consists of tested system and loaded system. The measurements during the tests were saved on the computer disk. In order to be able to compare the efficiency of the overall system with the efficiency obtained on the basis of the simulation, coefficients ki determining the energy losses of individual elements of the system were calculated. The research showed a large convergence of the mathematical description of energy losses in the elements of the system and the efficiency of the system with reality. The mathematical model enables accurate simulation determination of the energy efficiency of the system at each point of its field of operation, i.e. at each speed and load of the controlled hydraulic motor. The range of motor speed and load variation can also be accurately determined simulationally.
Źródło:
Journal of KONES; 2019, 26, 2; 129-135
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ènergoèffektivnost èkspluatacii tehničeskih sistem
Autorzy:
Švarcburg, L. E.
Powiązania:
https://bibliotekanauki.pl/articles/360128.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
technical systems
exploitation
energy efficiency
power factor
compensation
Opis:
The paper shows that the low energy efficiency exploitation of technical systems to a large extent determines their negative impact on the environment and humans. On the basis of the energy balance equation shows that the decrease in efficiency due to the loss of energy during its conversion and the transmission and power factor with reduced electrical devices technical systems. Reduced power factor due to the fact that the technical system operation the power consumption of the drive motor on the shaft of these systems much less than its nominal value. Loss of energy and reducing power factor leads to contamination of the environment and reduction of human security in the operation of technical systems. The most effective way to improve the energy efficiency of operation is to improve the power factor by compensating the phase shift, which reduces the current consumption due to compensation of the reactive component of it. Experimental research in machine tool technology systems have shown that the application of the method of compensation of phase shift can significantly improve the energy efficiency of the operation of these systems. This significantly reduces the amount of power consumption, the value of its reactive component and the input current and greatly increasing the power factor of technical systems in their operation.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 35 (107); 132-137
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovation model for energy effective investigations of air conditioning systems for cleanrooms
Autorzy:
Labay, V.
Harasym, D.
Powiązania:
https://bibliotekanauki.pl/articles/410772.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
exergy balance
air conditioning systems
cleanrooms
energy efficiency
Opis:
Innovation mathematical research model of the central straight flow air conditioning system for cleanroom in order to computer’s estimation its energy effective by virtue of exergetic output-input ratio depending on different factors, which have influence on its work, was presented in this article. The dependence of exergetic output-input ratio for chosen air conditioning system on parameters of external air was defined thanks to this model.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 2; 47-52
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność energetyczna pojazdu szynowego w różnych warunkach obciążenia
Energy efficiency of rail vehicle under different load conditions
Autorzy:
Jakubowski, A.
Jarzębowicz, L.
Karwowski, K.
Wilk, A.
Powiązania:
https://bibliotekanauki.pl/articles/253673.pdf
Data publikacji:
2018
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
efektywność energetyczna
pojazd szynowy
energy efficiency
rail vehicle
Opis:
W artykule zaprezentowano wyniki analizy dotyczącej wpływu ob-ciążenia na efektywność energetyczną miejskiego pojazdu szyno-wego. Obciążenie zależy od liczby pasażerów i od profilu prędko-ści – wyższa masa, prędkość i przyspieszenie wymagają większej siły pociągowej, a w konsekwencji wzrostu momentu obrotowego na wale silnika. Ponieważ liczba pasażerów zależy od pory dnia, a prędkość zależy od sytuacji online, uwzględniono odpowiednie warunki. Obliczenie biegu pojazdu przeprowadzono za pomocą modelu wbudowanego w Matlab/Simulink. Aby zbadać sprawność napędu, obliczono mapę wydajności silnika i straty falownika trak-cyjnego jako współczynnik zmiennej sprawności. Obliczenia prze-prowadzono dla różnych profili prędkości i warunków obciążenia, dostarczając informacji o zużyciu energii. Przedstawione wyniki i wnioski są podstawą do dalszych badań.
This paper analyses how different traction drive load influences energy efficiency of urban rail vehicle. Load depends on the number of passengers and on the speed profile – heavier mass, higher speed and acceleration demand higher tractive effort, which means higher torque on motor shaft. Since number of passengers depends on time of the day, and velocity is influenced by situation on line, adequate conditions were taken into account. Calculation of train run was done using model built in Matlab/Simulink. To provide look into drive efficiency, motor efficiency map and traction inverter losses were calculated and implemented as variable efficiency factor. Calculations were carried out for different speed profiles and load conditions, providing information about energy consumption. Presented results and conclusions are basis for further research.
Źródło:
TTS Technika Transportu Szynowego; 2018, 12; 44-48
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zwiększanie efektywności energetycznej transportu szynowego
Increasing of the energy efficiency the rail transport
Autorzy:
Szeląg, A.
Powiązania:
https://bibliotekanauki.pl/articles/253733.pdf
Data publikacji:
2008
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
efektywność energetyczna
transport szynowy
energy efficiency
rail transport
Opis:
Energochłonność transportu szynowego jest znacznie mniejsza niż transportu drogowego czy transportu lotniczego (przy porównywalnej średniej prędkości podróżnej), a że udział zużycia energii na działalność transportową stanowi ok. 25% globalnego zużycia energii w świecie warto inwestować w transport szynowy, gdyż żaden inny system transportowy nie jest w stanie uzyskać takiej przepustowości przy niskim zużyciu energii jak transport kolejowy. Efektywność energetyczna w transporcie kolejowym jest uzależniona od stosowanych rozwiązań technicznych i organizacyjnych, które przekładają się na określone koszty inwestycyjne (infrastruktura, tabor) i eksploatacyjne.
Źródło:
TTS Technika Transportu Szynowego; 2008, 12; 12-18
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of an energy-saving system for processing tin concentrates in a melt layer with phase inversion
Autorzy:
Dikhanbaev, Aristan Bayandievich
Dikhanbaev, Bayandy
Powiązania:
https://bibliotekanauki.pl/articles/1818461.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
energy efficiency
Sn refractory
efektywność energetyczna
Sn ogniotrwały
Opis:
An energy-saving scheme has been developed for a nonwaste processing system for refractory Sn-concentrates together with Zn-containing slags. The search for a new system was carried out in the following areas: the choice of a method for continuous, high-temperature and intensive processing of concentrates and the selection of high-performance melting equipment that implements this method; the formation of resource-saving technology; development of an energy-saving thermal scheme in the framework of which the selected melting equipment and non-waste technology will operate. In case of implementation of the proposed system, thermal efficiency will increase 1.42 times, and the total waste-free indicator will be 5.3 times higher than in existing fuming plants.
Źródło:
Modern Engineering; 2020, 3; 131--134
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Server Workload Model Identification: Monitoring and Control Tools for Linux
Autorzy:
Karpowicz, M.
Arabas, P.
Powiązania:
https://bibliotekanauki.pl/articles/307868.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
cloud computing
energy efficiency
Linux
server performance meterin
Opis:
Server power control in data centers is a coordinated process carefully designed to reach multiple data center management objectives. The main objectives include avoiding power capacity overloads and system overheating, as well as fulfilling service-level agreements (SLAs). In addition to the primary goals, server control process aims to maximize various energy efficiency metrics subject to reliability constraints. Monitoring of data center performance is fundamental for its efficient management. In order to keep track of how well the computing tasks are processed, cluster control systems need to collect accurate measurements of activities of cluster components. This paper presents a brief overview of performance and power consumption monitoring tools available in the Linux systems.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 2; 5-12
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traceability of gas flow measurements in complex distribution systems - uncertainty approach vs error approach
Autorzy:
Džemić, Zijad
Širok, Brane
Drnovšek, Janko
Powiązania:
https://bibliotekanauki.pl/articles/220509.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
calibration
energy efficiency
error analyses
measurement uncertainty
traceability
Opis:
The objective of the paper is to analyse traceability issues in real-life gas flow measurements in complex distribution systems. The initial aim is to provide complete and traceable measurement results and calibration certificates of gas-flow meters, which correspond to specific installation conditions. Extensive work has been done to enable a more credible decision on how to deal in particular situations with the measurement uncertainty which is always subject of a flow meter’s calibration as a quantitative parameter value obtained in laboratory, and with the qualitative statement about the error of an outdoor meter. The laboratory simulation of a complex, real-life distributed system has been designed to achieve the initial aim. As an extension of standardized procedures that refer to the laboratory conditions, the proposed methods introduce additional “installation-specific” error sources. These sources could be either corrected (if identified) or considered as an additional “installation-specific” uncertainty contribution otherwise. The analysis and the results of the experimental work will contribute to more precise and accurate measurement results, thus assuring proper measurements with a known/estimated uncertainty for a specific gas flow installation. Also, the analysis will improve the existing normative documents by here presented findings, as well as fair trade in one of the most important and growing energy consumption areas regarding the legal metrology aspects. These facts will enable comparing the entire quantity of gas at the input of a complex distributed system with the cumulative sum of all individual gas meters in a specific installation.
Źródło:
Metrology and Measurement Systems; 2019, 26, 2; 419-429
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sposob ochistki krysh ehnergosberegajushhikh teplic ot snega
Method of snow cleaning roof energy-efficient greenhouse
Autorzy:
Opryshko, A.
Pasechnik, H.
Powiązania:
https://bibliotekanauki.pl/articles/77451.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
greenhouse
snow
cleaning
energy efficiency
thermal radiation
analysis
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 3
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The exergetic analysis for predicting of energy efficiency of the hydraulic drive systems
Prognozirovanie ehnergoeffectivnosti sistemy gidroprivoda na osnove ehksergeticheskogo analiza
Autorzy:
Yakhno, O.
Gubarev, A.
Ganpantsurova, O.
Murashhenko, A.
Powiązania:
https://bibliotekanauki.pl/articles/77647.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
hydraulic drive
hydraulic calculation
temperature
viscosity
energy efficiency
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation and analysis of an isolated full-bridge DC/DC boost converter operating with a modified perturb and observe maximum power point tracking algorithm
Autorzy:
Matias, C. A.
Medeiros, G. P.
Moraes, P. H. F.
Fernandes, B. de A.
Alves, A. J.
Calixto, W. P.
Furriel, G. P.
Powiązania:
https://bibliotekanauki.pl/articles/136247.pdf
Data publikacji:
2017
Wydawca:
EEEIC International Barbara Leonowicz Szabłowska
Tematy:
energy efficiency
geometric Brownian motion
Monte Carlo simulation
Opis:
The purpose of the present study is to simulate and analyze an isolated full-bridge DC/DC boost converter, for photovoltaic panels, running a modified perturb and observe maximum power point tracking method. The zero voltage switching technique was used in order to minimize the losses of the converter for a wide range of solar operation. The efficiency of the power transfer is higher than 90% for large solar operating points. The panel enhancement due to the maximum power point tracking algorithm is 5.06%.
Źródło:
Transactions on Environment and Electrical Engineering; 2017, 2, 2; 45-50
2450-5730
Pojawia się w:
Transactions on Environment and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modernisations Polish fishing vessels on the example of the cutter DZI-102
Autorzy:
Rajewski, P.
Behrendt, C.
Klyus, O.
Powiązania:
https://bibliotekanauki.pl/articles/359815.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
fishing vessels
modernization of fishing cutters
energy efficiency
Opis:
Fishing limits, necessity to cope with competitive fishermen of other countries, the lack of financial resources to purchase modern vessels have caused that more than 30% of the Polish fishing vessels operating at the Baltic sea were withdrawn from operation between 2003 and 2012. Vessels remaining in service, especially older types have to be upgraded by the owners towards: reduction in energy expenditure; reduce the number of crew boats by the expansion of mechanization of fishing operations; improving the safety of vessels and working on fishing boats. Uncoordinated modernizations of the fishing cutters prevent from comparing the obtained results. A research team of the Maritime University of Szczecin gathered opinions of the shipowners regarding the effects of the modernizations performed and conducted research which shall constitute the grounds to develop optimal directions for modernization and operation of the fishing vessels. This paper presents range and results of renovation and reconstruction the Polish fishing vessel DZI-102 operated at the Baltic sea.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 17-22
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of an energy-saving system for processing tin concentrates in a melt layer with phase inversion
Autorzy:
Dikhanbaev, Aristan B.
Dikhanbaev, Bayandy
Powiązania:
https://bibliotekanauki.pl/articles/1818460.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
energy efficiency
Sn refractory
efektywność energetyczna
Sn ogniotrwały
Opis:
An energy-saving scheme has been developed for a nonwaste processing system for refractory Sn-concentrates together with Zn-containing slags. The search for a new system was carried out in the following areas: the choice of a method for continuous, high-temperature and intensive processing of concentrates and the selection of high-performance melting equipment that implements this method; the formation of resource-saving technology; development of an energy-saving thermal scheme in the framework of which the selected melting equipment and non-waste technology will operate. In case of implementation of the proposed system, thermal efficiency will increase 1.42 times, and the total waste-free indicator will be 5.3 times higher than in existing fuming plants.
Źródło:
Modern Engineering; 2020, 3; 131--134
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of an energy-saving system for processing tin concentrates in a melt layer with phase inversion
Autorzy:
Dikhanbaev, Aristan Bayandievich
Dikhanbaev, Bayandy
Powiązania:
https://bibliotekanauki.pl/articles/1818465.pdf
Data publikacji:
2020
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
energy efficiency
Sn refractory
efektywność energetyczna
Sn ogniotrwały
Opis:
An energy-saving scheme has been developed for a nonwaste processing system for refractory Sn-concentrates together with Zn-containing slags. The search for a new system was carried out in the following areas: the choice of a method for continuous, high-temperature and intensive processing of concentrates and the selection of high-performance melting equipment that implements this method; the formation of resource-saving technology; development of an energy-saving thermal scheme in the framework of which the selected melting equipment and non-waste technology will operate. In case of implementation of the proposed system, thermal efficiency will increase 1.42 times, and the total waste-free indicator will be 5.3 times higher than in existing fuming plants.
Źródło:
Modern Engineering; 2020, 3; 131--134
2450-5501
Pojawia się w:
Modern Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental analysis of the stability of ferrofluids based on Iron Oxide powder
Autorzy:
Ząbek, Daniel
Grzebielec, Andrzej
Cmok, Luca
Hribar Boštjančič, Patricija
Mertelj, Alenka
Powiązania:
https://bibliotekanauki.pl/articles/1537387.pdf
Data publikacji:
2021
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
ferrofluids
stability
energy efficiency
ferrofluidy
stabilność
efektywność energetyczna
Opis:
Ferrofluids most often consist of three components, they are: solid particles, the liquid in which they are dissolved and a substance that is supposed to prevent sedimentation - called surfacant. The biggest problem with ferrofluids is their stability. Mixtures in which one of the phases is a solid phase have a natural tendency to sedimentation. As a result, physical properties change during the use of such materials. As part of the research, it was decided to check which ferrofluid composition would be most resistant to continuous evaporation and condensation processes. Three different mixtures were analyzed. As a result of the experiment it was found that the best behavior was mixture of: iron-oxide with n-heptane and fatty acid as surfacant.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 2; 1-6
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examination of samples public buildings according to energy efficient
Badanie obiektów użyteczności publicznej w aspekcie ich sprawności energetycznej
Autorzy:
Alagöz, Meryem
Sarıcıoğlu, Pelin
Woloszyn, Marek
Powiązania:
https://bibliotekanauki.pl/articles/370006.pdf
Data publikacji:
2019
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
energy efficiency
ecotect software
building design
public buildings
Opis:
Public utility buildings are formal, structurally and functionally complex entities. In order to demonstrate energy-related defects of building designs developed by students, the conduct of analyses was proposed. The completed designs of public utility buildings were examined with regard to the energy efficiency of the solutions they feature through the application of the following program: Ecotect software was sufficient. Thus, it has been reached that how can be designed public utility buildings according to energy efficiency. Paying more attention to the energy aspect must change the previously designed architectural design of buildings.
Źródło:
Przestrzeń i Forma; 2019, 38; 111-122
1895-3247
2391-7725
Pojawia się w:
Przestrzeń i Forma
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie efektywności energetycznej zestawu modułów fotowoltaicznych stacjonarnych i pracujących w układzie nadążnym w warunkach gospodarstwa rolnego
Comparison of energy efficiency between two sets of photovoltaic modules stationary and heliostatic, under the farm conditions
Autorzy:
Myczko, A.
Karłowski, J.
Lenarczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/239685.pdf
Data publikacji:
2010
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
fotowoltaika
efektywność energetyczna
energia słoneczna
photovoltaics
energy efficiency
solar energy
Opis:
W pracy porównano pod kątem ilości pozyskanej energii dwa zestawy modułów fotowoltaicznych - stacjonarnych i wyposażonych w układ heliostatyczny. Uzyskane wyniki ilościowe pozwoliły na potwierdzenie tezy, że układ heliostatyczny znacząco zwiększa możliwości wytwarzania prądu elektrycznego w fotoogniwach. Kwestią dyskusyjną pozostaje opłacalność zastosowania układów nadążnych, w szczególności do zasilania odbiorników o stosunkowo niewielkiej mocy.
Two sets of photovoltaic modules: the standard, stationary set and the set equipped with heliostatic system, were compared in relation to the amount of energy cumulated. Obtained results indicate that the heliostatic system considerably increased the capabilities of electric energy generation in photovoltaics. However, the profitability of using sun tracking systems, especially for the low power receivers, is still an issue to be discussed.
Źródło:
Problemy Inżynierii Rolniczej; 2010, R. 18, nr 4, 4; 91-99
1231-0093
Pojawia się w:
Problemy Inżynierii Rolniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność energetyczna produkcji biomasy z rocznej wierzby
Biomass production energy efficiency for one-year old willow
Autorzy:
Kwaśniewski, D.
Powiązania:
https://bibliotekanauki.pl/articles/288529.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
efektywność energetyczna
wierzba energetyczna
produkcja
energy efficiency
energy willow
production
Opis:
W pracy określono energochłonność i efektywność energetyczną produkcji biomasy na rocznych plantacjach wierzby energetycznej. Wydzielono cztery strumienie energochłonności związane ze zużyciem nośników energii, stosowanymi materiałami i surowcami, środkami inwestycyjnymi oraz nakładami pracy żywej. Energochłonność produkcji biomasy z wierzby wynosiła średnio 30,8 GJ*ha-1. Natomiast wskaźniki efektywności energetycznej produkcji, dla wydzielonych trzech grup obszarowych plantacji to średnio: 1,8 dla grupy I, dla grupy II 2,7 i dla grupy III 2,8.
The paper specifies energy consumption and energy efficiency of biomass production in one-year old energy willow plantations. Four energy consumption streams were separated, connected with consumption of energy carriers, materials and raw products being used, investment resources and labour amounts. On average, biomass production energy consumption for willow reached 30.8 GJ*ha-1. Whereas, average production energy efficiency indexes for separated three plantation area groups were as follows: 1.8 for group I, 2.7 for group II, and 2.8 for group III.
Źródło:
Inżynieria Rolnicza; 2010, R. 14, nr 1, 1; 289-295
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring energy efficiency - structural and index decomposition analysis
Autorzy:
Stachura, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/14451975.pdf
Data publikacji:
2018-12-22
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
energy efficiency
index decomposition analysis
structural decomposition analysis
indicators
energy
Opis:
Aim: The aim is to recognize the main determinants of the energy efficiency improvement in transport in Poland in the years 2000-2014 using structural and index decomposition analysis, and to identify areas where there is still potential for further reduction of energy consumption. Design / Research methods: Techniques used to analyse changes in energy use are: structural decomposition analysis and index decomposition analysis. Each of these two methods is characterized by distinctive, unique techniques and approaches, as they have developed quite independently. Index decomposition analysis measures the impact of energy efficiency gains on the level of energy consumption, at the most detailed sector disaggregation level allowed by the available data. Whereas structural decomposition analysis allows to analyse the impact of the external factors, such as technological, demand, and demographic effects, on the fluctuations of the total energy consumption. The similarities and differences between the two approaches are summarized and illustrated with a numerical example of Polish transport. Conclusions / findings: The article recognizes the main determinants of the energy efficiency improvement in transport sector in Poland in the years 2000-2014. In case of Poland ODEX shows an overall progress of energy efficiency in transport by 24.3%. Results obtained with decomposition analysis indicate large divergences in energy efficiency improvements between modes of transport and vehicle types and identify areas where there is still potential for further reduction of energy consumption. Results from decomposing structure of energy use, show activity effect to be main reason for energy use growth. The distribution of each mode in total traffic of passengers and goods changes toward less energy efficient modes. The only factor driving down the energy use is energy savings.Originality / value of the article: Using two methods of decomposition analysis and comparing obtained outcomes allows to get a broader view on energy use trends. Results presented in this article are a good starting point for further detailed analysis of changes in energy use of transport.
Źródło:
Central European Review of Economics and Management; 2018, 2, 4; 71-86
2543-9472
Pojawia się w:
Central European Review of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność energetyczna budownictwa w dokumentach europejskich i krajowych
Energy Performance of Buildings in the European and National Policies and Legislative Documents
Autorzy:
Włodarski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2021205.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
energy performance
residential sector
support schemes
urban policy
Źródło:
Studia komitetu przestrzennego zagospodarowania kraju PAN; 2018, 187; 260-270
0079-3507
Pojawia się w:
Studia komitetu przestrzennego zagospodarowania kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Municipal Heat Energy of Ukraine - Adaptation to Global Warming
Autorzy:
Basok, Borys
Bazeev, Evgeny
Pavlenko, Anatoliy
Kurayeva, Iryna
Powiązania:
https://bibliotekanauki.pl/articles/2069936.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
global warming
municipal energy
innovations
adaptation
energy efficiency of buildings
Opis:
Rising global temperatures have exacerbated the problems of adaptation to climate change in various sectors of the economy, including municipal energy. Therefore, the task is to develop measures and mechanisms, the implementation of which will guarantee cost-effective comfortable and reliable heat and cold supply of buildings and structures in climate change. Experimental studies of heat transfer and monitoring of thermal regimes in enclosing structures and building elements were conducted with the development of innovative engineering systems for energy supply of a passive house of the "zero-energy" type. Experimental developments of innovative energy-efficient greenhouse gas-reducing technologies and equipment for energy supply systems of buildings have been performed and their architectural and construction solutions for adaptation to climate change have been optimized. In order to expand and deepen the theory and practice of improving the energy efficiency of buildings in the near future, the scientific priority and subject of basic and applied research have been identified. Developed adaptive to climate change innovative, energy efficient technologies and equipment of engineering systems of energy supply of buildings with the use of renewable energy sources can be used in the practice of energy supply of housing and communal services.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 552--568
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of losses in a hydraulic motor based on the SWSB - 63 motor tests
Autorzy:
Maczyszyn, A.
Powiązania:
https://bibliotekanauki.pl/articles/259391.pdf
Data publikacji:
2010
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrostatic drive and control
energy efficiency
power of energy losses
Opis:
In this paper are compared two models of energy losses: that suggested by Prof. Paszota, Z. in monograph “Energy losses in the hydraulic displacement motors – definitions and relations serving the evaluation of the efficiency of hydrostatic drive” [18] and that of Prof. Balawender, A. in “Energy analysis and methodology of testing of low-speed hydraulic motors” [1]. By using the data obtained from the tests of SWSB-63 hydraulic motors [2] the graphs which illustrate mechanical, volumetric and pressure losses in function of the parameters on which the losses directly depend [18 ], have been elaborated and showed in comparison with the description of such losses in function of the parameters assumed in [1]. The below presented text has been complemented in relation to that published in the monograph [4] and read during the scientific technical conference „Cylinder 2010” organized by the Mining Engineering Centre „Komag”, Gliwice, and held on 20÷22 September 2010 in Rytro, Poland.
Źródło:
Polish Maritime Research; 2010, 4; 46-53
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of photovoltaics on the implementation of the climate and energy package on the example of the Rzeszów functional area
Autorzy:
Potyrańska, Paulina
Puzio, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/101743.pdf
Data publikacji:
2019
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
energy management strategy
energy efficiency
RES
photovoltaics
climate strategy
energy strategy
Opis:
The aim of the study is to show the impact of investments in photovoltaic installations carried out by local government units on the implementation of the objectives of the climate and energy package in the Rzeszów Functional Area (ROF). It has been shown that such an important problem as the need to increase the share of renewable energy sources (RES) in electricity production is also solved locally. The methods of in-depth interview, case study and desk research were used. The application of modern technologies in the field of energy production with the use of photovoltaic cells in the ROF area is to contribute in 2019-2035 to the reduction of CO2 emissions; to the increase in the production of electricity from RES, and to the reduction of the use of fossil fuels for the production of electricity. Diversification of energy sources, also at local and individual level, can be beneficial not only for the environment, but also for the budget of energy consumers.
Źródło:
Energy Policy Studies; 2019, 1 (3); 49-58
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electric energy access in Bangladesh
Autorzy:
Taheruzzaman, M.
Janik, P.
Powiązania:
https://bibliotekanauki.pl/articles/136227.pdf
Data publikacji:
2016
Wydawca:
EEEIC International Barbara Leonowicz Szabłowska
Tematy:
energy profile
energy efficiency
electric power sector
renewable energy
solar system
Opis:
This paper represents the overall electrical energy profile and access in Bangladesh. In the recent past, Bangladesh has been experiencing the shortage of electricity, and about 42% of the population no access to the electricity. The electricity consumption has rapidly increased over last decade. The demand and consumption will intensify in the remote future as overall development and future growth. To set “vision 2021” of Bangladesh; the government of Bangladesh has devoted to ensuring access to affordable and reliable electricity for all by 2021. In the modern time, energy is the vital ingredient for socioeconomic growth in the developing country i.e., alleviating poverty. Along with electricity access in Bangladesh strived to become the middle-income country by 2021. Bangladesh has experienced that energy consumption inclines to increase rapidly when per capita income reaches between US$ 1,000 and US$ 10,000, and a country’s growth momentum through reliable energy supply and consistent energy supply ensured by the sustainable energy. As increasing population in Bangladesh, the electric energy generation is an important dispute through the sustainable way.
Źródło:
Transactions on Environment and Electrical Engineering; 2016, 1, 2; 6-17
2450-5730
Pojawia się w:
Transactions on Environment and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency Analysis of the Generation of Energy in a Biogas CHP System and its Management in a Waste Landfill – Case Study
Autorzy:
Ciuła, Józef
Generowicz, Agnieszka
Gaska, Krzysztof
Gronba-Chyła, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2173248.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
cogeneration
energy efficiency
energy ratio
landfill gas
municipal waste
renewable energy
Opis:
As a waste neutralization facility, the landfill is a kind of bioreactor producing landfill gas or (LFG) - biogas, which should be captured and neutralised for environmental reasons. One of the ways of its utilisation is the combined production of heat and electrical energy in combined heat and power (CHP) cogeneration systems. For that purpose, the assessment of the energy efficiency of a cogeneration unit was undertaken in this work on the basis of the unit performance over the last 5 years. The analysis of the CHP system energy performance demonstrated that the ratios range at the lower limits for units up to 0.5 MW. The lower efficiency of fuel chemical conversion in the CHP plant (0.70) stems from the failure to use the rated thermal and electrical power fully (74.2%), which is caused by the insufficient stream of biogas collected from the landfill (161.46 m3∙h-1). The analysis of the generated energy usage, particularly in terms of heat, has shown a surplus which is not used and therefore is a loss. The proposed solutions in this area should optimize the use of heat generated from the renewable source, i.e. landfill biogas.
Źródło:
Journal of Ecological Engineering; 2022, 23, 7; 143--156
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmentally friendly cruise seaports in Northern Europe – onshore power supply
Autorzy:
Kizielewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/24201450.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
onshore power supply
cruise seaports
environmental ship index
cruise shipping
port infrastructure
environmental sustainability
energy efficiency
energy efficiency design index
Opis:
The investment policy applied by seaport authorities has a great impact on the state of the natural environment in coastal regions. Unfortunately, in many cases, their environmental efforts are limited to the issues which are defined by the applicable legal regulations determined by International Maritime Organization, the Organization of United Nations and the European Commission etc. However, in recent years we can observe significant improvement in this area, especially in the seaports of Northern Europe. They often decide on highly capital-intensive pro-ecological investments allowing to reduce the level of pollution emitted from cruise ships during their handling in ports, such as e. g. the opportunity of connecting vessels to the shore-side energy supply systems. Various solutions in this area are currently used in the world. The ports in Northern Europe are currently the leaders in this area. The use of such solutions is cost-intensive, but it significantly reduces the level of pollution emitted by ships into the environment, and the level of noise and vibration caused by engines. This paper aims to assess the seaports' involvement in Northern Europe in the preparation of seaport infrastructure enabling cruise ships to be connected to the onshore power supply systems. The article contains the results of surveys conducted with the use of two methods to adjust the research technique to the respondents’ needs, i.e. CASI (Computer-Assisted Self Interviewing) and EMS (Electronic Mail Survey). The empirical research was conducted among the seaports in Northern Europe. The results of the survey may be of interest to seaport authorities and cruise ship owners.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 2; 357--363
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ENERGY SECURITY OF UKRAINE IN THE CONTEXT OF ITS SUSTAINABLE DEVELOPMENT
Autorzy:
Semenenko, Inna
Powiązania:
https://bibliotekanauki.pl/articles/517192.pdf
Data publikacji:
2016
Wydawca:
Instytut Badań Gospodarczych
Tematy:
energy security
fuel and energy resources
sustainable development
energy efficiency
energy consumption
Opis:
Energy security is an important issue for Ukraine's sustainable development. The main goal of the article is to show the state of energy security of Ukraine, analyze its tendencies and challenges, reveal the impact of energy security on sustainable development of a country. The state of the energy security of Ukraine was analyzed with the help of data collection, processing and analysis. Data was taken from State Statistics Service of Ukraine, Ministry of Energetics and Coal Industry of Ukraine, other sources, and analyzed with the help of tools of statistics and economic analysis. Ukraine, being a developing country and experiencing war, political and economic crisis, struggles for energy security support. The present state of energy availability and consumption in the country influences its sustainable development and political stability, and is a significant restraint in country's survival. Despite the fact that Ukraine has enough resources' deposits to provide itself with energy, it provides less than 50% of own demands and is dependent on Russia's resources. Production of energy in Ukraine is decreasing, but energy consumption remains high. Ukrainian industries are energy-wasteful and energy-inefficient; the country has the leading positions in energy intensity of GDP. The article shows the relation of energy sources and energy security of Ukraine to sustainable development, reveals the dependency of the Ukrainian energy security, and indicates its main threats and ways out.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2016, 11, 3; 537-555
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silnik napędzający oszczędność
The Motor Propelling the Economy
Autorzy:
Hałoń, R.
Dukalski, P.
Poprawski, W.
Powiązania:
https://bibliotekanauki.pl/articles/1368424.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
silniki indukcyjne
normy sprawności
energooszczędność
induction motors
efficiency standards
energy efficiency
Opis:
The article concerns the description of new standards of efficiency motors that are currently introduced into European market. The authors describe the norms which create new standards and economic aspects of the use of energy efficient motors because of the amount of energy savings and CO2 emissions to the atmosphere. Part of the article concerns the steps taken by the TAMEL SA to develop and offer the European market in the future efficiency class IE3 Premium and Super Premium IE4 motors.
Artykuł dotyczy opisu nowych standardów sprawności silników indukcyjnych, które są aktualnie wprowadzane na rynek europejski. Autorzy opisują normy określające nowe standardy oraz aspekty ekonomiczne stosowania silników energooszczędnych z uwagi na ilość zaoszczędzonej energii oraz emisji CO2 do atmosfery. Część artykułu dotyczy kroków podjętych przez TAMEL S.A. w celu opracowania oraz zaoferowania w przyszłości rynkowi europejskiemu silników klasy sprawności Premium IE3 oraz Super Premium IE4.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2013, 2, 99; 191-197
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency and colors in LEDs light sources
Skuteczność i barwy w źródłach światła LED
Autorzy:
Turlej, Z.
Powiązania:
https://bibliotekanauki.pl/articles/158637.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
efektywność energetyczna
LED
energy efficiency
LED systems
LEDs technologies
Opis:
The light gains from LEDs continue to grow, doubling a about every two years. It gives real hope for the LEDs solving problem of efficiency in the lighting. This paper presents review some problems connected with efficiency and colors in LEDs technologies.
Referat omawia w zarysie stan technologii i efektywności uzyskiwania barwy światła w aktualnie produkowanych półprzewodnikowych źródłach LED. Ponadto zarysowano perspektywy rozwoju technologii ze szczególnym uwzględnieniem materiałów organicznych i osiągnięć plazmoniki.
Źródło:
Prace Instytutu Elektrotechniki; 2007, 233; 173-184
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagadnienia ekologii i energooszczędności w architekturze : Współczesne tendencje w projektowaniu domów jednorodzinnych
Issues of ecology and energy efficiency in architecture : Contemporary trends in design of single-family houses
Autorzy:
Czarnecki, M.
Rytel, G.
Powiązania:
https://bibliotekanauki.pl/articles/398307.pdf
Data publikacji:
2013
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
architektura
mieszkalnictwo
energooszczędność
ekologia
architecture
housing
energy efficiency
ecology
Opis:
W pracy przywołano kilka istotnych aspektów związanych z ekologią, dotyczących polskiego budownictwa jednorodzinnego ostatnich lat. Dają się one podzielić na dwie podstawowe grupy. Pierwsza wiąże się z zagadnieniami technologii materiałowej i energooszczędności, druga jest zdominowana przez kwestie formy architektonicznej. W tym ujęciu ważne miejsce z punktu widzenia perspektyw budownictwa proekologicznego zajmują domy z niskoprzetworzonych materiałów naturalnych – przyjaznych środowisku i stosunkowo tanich. Aspekt ekonomiczny odgrywa również istotną rolę w eksploatacji, na co zwrócono uwagę, omawiając technologie budownictwa energooszczędnego. Zagadnienie formy architektonicznej podzielono w pracy na dwie części. W jednej mowa jest o obiektach obrazujących ideę powstałą w latach 70-tych dwudziestego wieku – zintegrowania budynku z krajobrazem naturalnym. Druga część traktuje o źródłach inspiracji, wywodzących się z tradycyjnego budownictwa wiejskiego i małomiasteczkowego.
The paper concerns several important aspects of the ecology being observed in the Polish single-family housing in recent years. They can be divided into two basic groups. The former relates to the issues of material technology and energy efficiency, the latter is dominated by the issues of architectural form. Bearing in mind the prospect of ecological housing, in this approach the houses built from low-processed natural materials – environmentally friendly and relatively cheap, are of a great importance. The economical aspect also plays a crucial role in the maintenance, as highlighted while discussing the construction of energy-efficient technologies. The issue of architectural form in the work has been divided into two parts. The first part concerns the buildings reflecting the ideas created in the 70s – to integrate the building with its natural landscape. The other part touches upon the sources of inspiration deriving from traditional rural and small town housing.
Źródło:
Architecturae et Artibus; 2013, 5, 4; 11-20
2080-9638
Pojawia się w:
Architecturae et Artibus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy-efficient technologies of grain processing and obtaining of fodder concentrates
Energooszczędne technologie obróbki ziarna i otrzymywanie koncentratów paszowych
Autorzy:
Savinykh, P. A.
Sychugov, Y. V.
Kazakov, V. A.
Powiązania:
https://bibliotekanauki.pl/articles/335324.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
energy efficiency
technology
grain
treatment
energooszczędność
technologia
ziarno
obróbka
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2015, 60, 1; 84-87
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena nakładów energetycznych wybranych technologii zakładania plantacji ślazowca pensylwańskiego
Evaluation of energy expenditure for selected technologies used to establish pennsylvanian mallow (Sida hermaphrodita) plantations
Autorzy:
Piskier, T.
Powiązania:
https://bibliotekanauki.pl/articles/286707.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
efektywność energetyczna
pracochłonność
ślazowiec
energy efficiency
labour consumption
mallow
Opis:
W doświadczeniu polowym porównano wpływ trzech technologii zakładania plantacji ślazowca na wielkość nakładów energetycznych, nakładów pracy ludzkiej oraz efektywność energetyczną jego produkcji. Największe nakłady energii i pracy ludzkiej poniesiono na założenie plantacji z całych karp i z ich fragmentów (kłączy). Plon biomasy a w przeliczeniu również energii były istotnie większe po zastosowaniu tych technologii niż uzyskane na obiektach zakładanych z siewu nasion, co spowodowało zwiększenie wskaźnika efektywności energetycznej odpowiednio do poziomu 3,5 i 3,76 w roku założenia plantacji oraz 7,2 i 6,7 w drugim roku uprawy roślin.
Field experiment was carried out in order to compare the impact of three technologies used to establish mallow plantation on energy expenditure, labour amount and energy efficiency of its production. Highest energy expenditure and labour amount was incurred to establish a plantation using whole rootstocks and their fragments (rhizomes). Biomass crop and, after conversion, energy yield as well, were significantly higher after having employed these technologies than the respective values obtained for objects established from seeding. This resulted in energy efficiency index growth to the level of 3.5 and 3.76, respectively, in the year the plantation was established, and 7.2 and 6.7 in the second year of plant growing.
Źródło:
Inżynieria Rolnicza; 2008, R. 12, nr 10(108), 10(108); 193-200
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of polarization molecules reagents of the burning reaction on the efficiency of equipment for thermogeneration
Autorzy:
Kovalyshyn, B.
Powiązania:
https://bibliotekanauki.pl/articles/411199.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
energy efficiency
burning
electric field
high voltage
activation
polarization
Opis:
The aspects of physical and chemical nature of oxidizing-reduction processes of burning were investigated. The communication of efficiency of fuel equipments with polarizing and activating of molecules-reagents was exposed. Application of molecules electro-activation for optimization of the chemical reactions at burning passed at incineration of gaseous hydrocarbon fuels in the oxidizing air environment was grounded experimentally.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2013, 2, 2; 31-35
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differentiated Service Model-Supported Cluster-Based Routing in Wireless Sensor Networks
Autorzy:
Agarkhed, Jayashree
Dattatraya, Patil Yogita
Patil, Siddarama
Powiązania:
https://bibliotekanauki.pl/articles/307674.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
clustering
energy efficiency
proxy server
TDMA
wireless sensor networks
Opis:
Wireless Sensor Network finds its extensive use in healthcare applications for the transfer of time-critical data through wireless connectivity. The primary cause of network failure is the transfer of time-critical multimedia data. The article presents a new dfferentiated service modelsupported (DSM) cluster-based routing in wireless sensor networks (WSNs) that overcomes the above issue. DSM prioritizes the transfer of dfferent flow types based on packet type and packet size. The employment of computational offlading minimizes delay for critical and small-sized data packets and by carrying out data reduction of large-sized packets at proxy server. It outperforms the existing protocols in terms of energy efficiency, throughput, and reliability by prioritizing the transfer of time-critical health application data.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 3; 1-9
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategies influencing energy efficiency of lighting solutions
Autorzy:
Pracki, P.
Wiśniewski, A.
Czyżewski, D.
Krupiński, R.
Skarżyński, K.
Wesołowski, M.
Czaplicki, A.
Powiązania:
https://bibliotekanauki.pl/articles/201458.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
interior lighting
road lighting
floodlighting
energy efficiency
Opis:
Lighting technologies developed significantly in the last decade. New LED light sources, dedicated luminaires and improved lighting control techniques gave rise to new possibilities in improving energy efficiency of lighting solutions. The article is an overview of interior, road and exterior architectural object lighting design strategies. It also presents design considerations that directly impact lighting conditions and energy eff iciency. Practical examples of the application of basic design strategies, accompanied by the obtained energy results, are also depicted. Issues discussed in the article may be useful in researching and designing interior and road lighting, as well as f loodlighting. They can also be useful in planning and implementing strategies aimed at improving lighting conditions and energy efficiency of lighting solutions.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 4; 711-719
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solar concentrators in heat balance of the building
Solnechnye ustanovki s koncentratovom teplovom balance zdanija
Autorzy:
Denysova, T.
Powiązania:
https://bibliotekanauki.pl/articles/77978.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
heat balance
electricity
heat energy
solar energy
solar collector
energy efficiency
building
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting the energy efficiency of fishing vessels
Autorzy:
Szczepanek, M.
Powiązania:
https://bibliotekanauki.pl/articles/135505.pdf
Data publikacji:
2015
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
fishing cutters
energy efficiency management
energy losses
energy consumption
fuel consumption reduction
Opis:
The paper presents guidelines for the factors affecting the energy efficiency of fishing vessels. A main classification covers operational and structural factors. This classification is due to circumstances under which an opportunity to make decisions affecting the final energy consumption level arises. Under this approach one may distinguish operational and structural methods for energy efficiency management of fishing vessels.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 42 (114); 38-42
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie efektywności energetycznej dla bezpieczeństwa energetycznego kraju
The importance of energy efficiency for the countrys energy security
Autorzy:
Mastalerska, M.
Powiązania:
https://bibliotekanauki.pl/articles/282200.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
efektywność energetyczna
bezpieczeństwo energetyczne
oszczędność energii
energy efficiency
energy security
energy saving
Opis:
Artykuł ma na celu ukazanie roli efektywnooeci energetycznej w uzyskaniu przez Polskę stanu bezpieczeństwa energetycznego. Oszczędnooeć energii oraz wzrost efektywnooeci energetycznej kraju umożliwia poprawę wskaźników zarówno ekonomicznych jak i ekologicznych. W artykule ukazano szereg sposobów oszczędnooeci energii oraz mechanizmów promujących racjonalizację gospodarki energetycznej. Problematykę przedstawiono w oewietle najważniejszych przepisów prawnych dotyczących tematyki energetycznej.
The article aims to show the significant role of energy efficiency to accomplish the status of energy security in Poland. Energy conservation and the increase of national energy efficiency indicators enable improvement of economical and ecological rates. The article shows several ways for energy conservation and mechanisms to promote the rationalization of energy management. The issues are presented in the light of the main legal regulations related to energy branch.
Źródło:
Polityka Energetyczna; 2011, 14, 1; 281-296
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Addressing Energy Efficiency by Periodical Energy Audits
Autorzy:
Grebski, Wes
Grebski, Michalene
Czerwińska-Lubszczyk, Agnieszka
Jagoda-Sobalak, Dominika
Powiązania:
https://bibliotekanauki.pl/articles/2064363.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
energy audit
energy efficiency
energy saving
audyt energetyczny
oszczędzanie energii
efektywność energetyczna
Opis:
The publication focuses on assessing the energy efficiency in residential and to some extent commercial applications. An energy audit is always the first step in addressing energy efficiency. The purpose of the publication is to present the benefits of using an energy audit. It explains a “do-it-yourself” procedure for an energy audit. The publication also focuses on calculating the potential energy saving by updating low-efficiency electric appliances with high-efficient alternatives. The environmental benefits of addressing the energy efficiency of households is also being discussed. An energy audit using a “do-it-yourself” procedure focuses on the economic, ecological and social impact to environment. The energy audit contributes to the implementation of the concept of sustainable development in our day by day life.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 315--322
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy consumption and energy efficiency improvement of overhead crane’s mechanisms
Energochłonność i poprawa efektywności energetycznej mechanizmów suwnicy pomostowej
Autorzy:
Kosucki, Andrzej
Stawiński, Łukasz
Malenta, Piotr
Zaczyński, Jakub
Skowrońska, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/301451.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
energy consumption
energy efficiency
crane
hoist
energochłonność
efektywność energetyczna
suwnica
wciągarka
Opis:
The article presents the numerical investigation of the overhead crane’s energy consumption. The analysis is based on the hybrid model of the crane consisting of numerical model of drive mechanisms as bridge, trolley, hoist and also experimentally measured power consumption of each control unit. The numerical model was verified experimentally on the real crane. The investigation focuses on analyzing the energy consumption of the overhead crane in relation both to the travelled distance and also for the lifting and lowering heights of a suspended payload. Particular attention was paid on the cases straightly related to the hoist, as a main factor of improvements in the energetic efficiency of the overhead crane. Energy consumption was investigated for a variety of magnitudes of transported mass.
W artykule przedstawiono badania symulacyjne energochłonności pracy suwnicy pomostowej. Podstawą badań jest model hybrydowy bazujący na numerycznych modelach mechanizmów mostu, wózka i wciągarki oraz na eksperymentalnie zmierzonym zapotrzebowaniu mocy dla układu sterowania. Model numeryczny został zweryfikowany na rzeczywistej suwnicy. W pracy przedstawiono analizę energochłonności mechanizmów jazdy w zależności od pokonanej drogi, jak również mechanizmu podnoszenia w zależności od wysokości podnoszenia i opuszczania ładunku. Zwrócono szczególną uwagę na mechanizm wciągarki, jako na główny czynnik poprawy efektywności energetycznej. Energochłonność została zbadana dla różnych mas transportowanego ładunku.
Źródło:
Eksploatacja i Niezawodność; 2020, 22, 2; 323-330
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-100 z 800

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies