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Tytuł:
Building Energy Efficient Wireless Sensor Networks
Autorzy:
Cherepanov, A.
Tyshchenko, I.
Popova, M.
Vakhnin, D.
Powiązania:
https://bibliotekanauki.pl/articles/226609.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wireless sensor network
energy efficiency
signals
systems
automated control system
Opis:
This article provides an overview of the existing problems in the construction of wireless sensor networks (WSN), in particular the problem of energy efficiency of the system. In many cases, the WSN is set in places where the connection to the stationary power sources is difficult or impossible. Such situations require the use of autonomous energy sources: traditional (batteries) or alternative (solar panels, wind generators, etc.). Due to limitations in the available system power there is obvious need in efficient use of available energy resources.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 1; 45-49
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energooszczędny kwartał mieszkaniowy
Energy-efficient housing quarter
Autorzy:
Szuba, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/2065548.pdf
Data publikacji:
2019
Wydawca:
Politechnika Częstochowska
Tematy:
ekologia
energooszczędność
energooszczędny kwartał mieszkaniowy
ecology
energy-saving
housing quarter
Opis:
Podjęto problematykę istniejących kwartałów mieszkaniowych w miastach, a ściślej ich możliwości przekształceń mających na celu uzyskanie korzystniejszych rozwiązań funkcjonalno-przestrzennych, w tym ekologicznych i energooszczędnych. Problematyka przekształceń w zakresie przekształceń funkcjonalnych dotyczy: • stworzenia atrakcyjnej, wzbogaconej o zieleń przestrzeni dla mieszkańców, • wprowadzenia podziemnych miejsc do garażowania, • poprawy estetyki i higieny miejsc do gromadzenia odpadów stałych. W zakresie zagadnień związanych z ekologią i energooszczędnością przedstawione treści dotyczą: • gromadzenia i wykorzystania wody deszczowej, • pozyskiwania i akumulacji energii słonecznej ze ścian, • pozyskiwania i akumulacji ciepła z dachu, • pozyskiwania i akumulacji ciepła z dróg i chodników, • pozyskiwania ciepła odpadowego od pojazdów. Artykuł prowadzi do konkluzji mającej na celu zwrócenie uwagi na metodykę prezentowanych przekształceń - możliwą do rozpowszechniania na terenie wielu miast polskich.
The article deals with the problems of existing housing quarters in towns, and more specifically their transformation possibilities aimed at obtaining more favorable functional, spatial, ecological and energy-saving solutions. The problem of transformations in the scope of functional issues concerns: • creating an attractive space enriched by greenery for residents, • introduction of underground parking spaces, • improving the aesthetics and hygiene of places for collecting solid waste. In the scope of issues related to ecology and energy efficiency article is concerning: • collection and use of rainwater, • gaining and accumulation of solar energy from the walls, • gaining and accumulation of heat from the roof, • gaining and accumulation of heat from pavements and roads, • gaining of waste heat from vehicles. The article leads to a conclusion aiming to draw attention to the methodology of the presented transformations - possible for spreading in many Polish towns.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2019, 8, 1; 47--57
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Certyfikacja budynków energooszczędnych
Certification of energy-efficient buildings
Autorzy:
Furtak, Marcin
Fedorczak-Cisak, Małgorzata
Różańska, Beata
Bocheński, Paweł
Gintowt, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/2055956.pdf
Data publikacji:
2021
Wydawca:
Polski Związek Inżynierów i Techników Budownictwa
Tematy:
budynek energooszczędny
certyfikacja
certyfikacja wielokryterialna
BREEAM
DGNB
PHI
WELL Building Standard
MCBE PK
Małopolskie Laboratorium Budownictwa Energooszczędnego
Politechnika Krakowska
certyfikat energetyczny
energy-efficient building
certification
multi-criteria certification
Malopolska Centre for Energy-Efficient Building
Cracow University of Technology
energy certification
Opis:
Polityka europejska w zakresie działań zmierzających do poprawy efektywności energetycznej bardzo mocno skupia się na sektorze budownictwa, odpowiadającego za około 40% całkowitego zużycia energii. Zrównoważone, energooszczędne budownictwo to w najbliższych latach wymóg i konieczność. Małopolskie Centrum Budownictwa Energooszczędnego Politechniki Krakowskiej we współpracy z Małopolskim Laboratorium Budownictwa Energooszczędnego wprowadzają certyfikat, który potwierdzi wymagane parametry budynku energooszczędnego oraz jego wpływ na zdrowie użytkowników. Dokument jest pierwszym opracowanym w Polsce certyfikatem budynków energooszczędnych, spełniającym założenia budynków o niemal zerowym zapotrzebowaniu na energię, których wdrożenie nakładają na Polskę dyrektywy Unii Europejskiej.
European policy on energy efficiency measures focuses very strongly on the building sector, which accounts for around 40% of total energy consumption. Sustainable, energy-efficient construction is a requirement and necessity in the coming years. Malopolska Centre for Energy-Efficient Building of Cracow University of Technology in cooperation with Malopolska Laboratory of Energy-Efficient Building introduce a certificate which will confirm required parameters of energy-efficient building and its influence on users’ health. The document is the first certificate of energy efficient buildings developed in Poland, meeting the assumptions of buildings with nearly zero energy demand, whose implementation is imposed on Poland by the European Union directives.
Źródło:
Przegląd Budowlany; 2021, 92, 11-12; 144--148
0033-2038
Pojawia się w:
Przegląd Budowlany
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perspectives for development of energy efficient civil engineering
Autorzy:
Grymin, M.
Powiązania:
https://bibliotekanauki.pl/articles/105989.pdf
Data publikacji:
2013
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
energy-efficient civil engineering
sustainable development
low-energy buildings
energy certification
energooszczędna inżynieria lądowa
rozwój zrównoważony
budynki niskoenergetyczne
certyfikacja energetyczna
Opis:
The aim of this paper is to introduce energy-saving civil engineering, to demonstrate the need for energy conservation, and to radically change the principles of building. The paper then shows the importance of the principle of sustainable development and acquaints the reader with the objectives of the European Union and its basic documents concerning measures to improve energy and climate protection standards in buildings. This paper presents the research programs and standards for the certification of buildings and housing estates inscribed in the principle of energy efficient civil engineering and sustainable development. Examples of low energy buildings from Germany and Austria are shown, with an emphasis on the principles of designing passive buildings. A vision of the future of architecture and civil engineering is presented using examples of innovative buildings and settlement structures designed based on energy saving and energy management.
Źródło:
Acta Innovations; 2013, 8; 43-49
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-efficient Ship Operation – Training Requirements and Challenges
Autorzy:
Baldauf, M.
Baumler, R.
Olcer, A.
Nakazawa, T.
Benedict, K.
Fischer, S.
Schaub, M.
Powiązania:
https://bibliotekanauki.pl/articles/116480.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Energy-Efficient Ship Operation
Maritime Environmental Protection Committee (MEPC)
Marpol
Opis:
The International Maritime Organization (IMO), through its Maritime Environmental Protection Committee (MEPC), has been carrying out substantive work on the reduction and limitation of greenhouse gas emissions from international shipping since 1997, following the adoption of the Kyoto Protocol and the 1997 MARPOL Conference. While to date no mandatory GHG instrument for international shipping has been adopted, IMO has given significant consideration of the matter and has been working in accordance with an ambitious work plan with a view to adopting a package of technical provisions. Beside the efforts undertaken by IMO, it is assumed that e.g. optimized manoeuvring regimes have potential to contribute to a reduction of GHG emissions. Such procedures and supporting technologies can decrease the negative effects to the environment and also may reduce fuel consumption. However, related training has to be developed and to be integrated into existing course schemes accordingly. IMO intends to develop a Model Course aiming at promoting the energy‐efficient operation of ships. This Course will contribute to the IMO’s environmental protection goals as set out in resolutions A.947(23) and A.998(25) by promulgating industry “best practices”, which reduce greenhouse gas emissions and the negative impact of global shipping on climate change. In this paper the outline of the research work will be introduced and the fundamental ideas and concepts are described. A concept for the overall structure and the development of suggested detailed content of the draft Model course will be exemplarily explained. Also, a developed draft module for the model course with samples of the suggested integrated practical exercises will be introduced and discussed. The materials and data in this publication have been obtained partly through capacity building research project of IAMU kindly supported by the International Association of Maritime Universities (IAMU) and The Nippon Foundation in Japan.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 283-290
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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:
Selected Aspects of Development Towards Energy Efficient Buildings
Autorzy:
Wójcicka-Migasiuk, D.
Paśnikowska-Łukaszuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/124608.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
low energy buildings
thermal-visual measurements
biofuel
waste management aspects
Opis:
The focal point is to present the areas where the technology in buildings can be supported by proper motivation and take substantial advantage measurable in technical units. The need to understand the integration between ecology, society, economy and technology is crucial when global improvements are the targets. These targets should consider urban environments as natural human settlement, in the understanding that accepts human psychological needs for wide and deep education, acquiring highly professional satisfaction without resigning from family style of life and leisure as natural. It is necessary to accept human production also in its advanced levels as a natural human activity and to combine it with the other afore-mentioned components of integration. Attention has been directed to clean energy certification in newly constructed objects and refurbished buildings, formation of owner’s responsibility for the possessed goods and their best use in sustainable development. Particular attention has been drawn to the increasingly popular manner of using resources only if it is justified by proportionally very high advantages to the society. This has been presented with the examples of energy savings in low energy and passive buildings. Moreover, the examples show the ways of sustainable development which include the use of renewable energy, using coal only in collective industrial systems very restricted in terms of protection against pollution and uncontrolled use of energy, and similarly, of other conventional fuels, water and land.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 137-143
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conventional energy efficient routing protocols in wireless sensor networks
Autorzy:
Al-Rawi, Muaayed F.
Powiązania:
https://bibliotekanauki.pl/articles/117843.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
WSN
routing protocol
energy efficient
protokół routingu
energooszczędność
Opis:
Wireless sensor network is a significant piece of wireless communication. It is a gathering of an enormous number of sensor nodes that are set in remote spots. The sensors have ability to do a typical undertaking. So energy exhaustion plays a significant job in keeping up a stable network. To build the system lifetime, a different energy effective algorithm is required which expands the network lifetime and makes the network more energy productive. For the augmenting, the lifetime of the network diverse routing technique has been utilized which help in expanding the lifetime of the network. This article portrays the diverse routing protocol which helps in energy efficient routing in a wireless sensor network.
Źródło:
Applied Computer Science; 2020, 16, 3; 80-87
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Efficient Scheduling Methods for Computational Grids and Clouds
Autorzy:
Jakóbik, A.
Grzonka, D.
Kołodziej, J.
Chis, A. E.
González-Vélez, H.
Powiązania:
https://bibliotekanauki.pl/articles/309207.pdf
Data publikacji:
2017
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
batch scheduling
cloud computing
energy efficient
grids
power consumption
resource allocation
Opis:
This paper presents an overview of techniques developed to improve energy efficiency of grid and cloud computing. Power consumption models and energy usage proles are presented together with energy efficiency measuring methods. Modeling of computing dynamics is discussed from the viewpoint of system identication theory, indicating basic experiment design problems and challenges. Novel approaches to cluster and network-wide energy usage optimization are surveyed, including multi-level power and software control systems, energy-aware task scheduling, resource allocation algorithms and frameworks for backbone networks management. Software-development techniques and tools are also presented as a new promising way to reduce power consumption at the computing node level. Finally, energy-aware control mechanisms are presented. In addition, this paper introduces the example of batch scheduler based on ETC matrix approach.
Źródło:
Journal of Telecommunications and Information Technology; 2017, 1; 56-64
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensorless and energy-efficient PMSM drive for fan application
Autorzy:
Brock, S.
Pajchrowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/140706.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy losses
v/f control
PMSM
Opis:
The paper presents the problem of sensorless control of a permanent magnets synchronous motor (PMSM) without a damping cage for fan applications. Frequency control was used according to the principle of v/f = const. In order to reduce the power consumption of the drive system, the optimal voltage to the motor frequency characteristics was tested in the laboratory. The experimental studies was performed on a laboratory set of a drive consisting of two coupled PMSM machines, where one machine was supplied by a transistor inverter and the other was a passive load. A new criterion based on minimizing the module of stator current vector was proposed and an optimization algorithm in steady states was tested. The results of laboratory tests confirmed the validity of the applied solution for the fan drive.
Źródło:
Archives of Electrical Engineering; 2013, 62, 2; 217-225
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Energy Efficient QAM Modulation with Multidimensional Signal Constellation
Autorzy:
Markiewicz, T. G.
Powiązania:
https://bibliotekanauki.pl/articles/227049.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
communication system
QAM modulation
lattice
multidimensional constellations
Opis:
Packing constellations points in higher dimensions, the concept of multidimensional modulation exploits the idea drawn from geometry for searching dense sphere packings in a given dimension, utilising it to minimise the average energy of the underlying constellations. The following work analyses the impact of spherical shaping of the constellations bound instead of the traditional, hyper-cubical bound. Balanced constellation schemes are obtained with the N-dimensional simplex merging algorithm. The performance of constellations of dimensions 2, 4 and 6 is compared to the performance of QAM modulations of equivalent throughputs in the sense of bits transmitted per complex (twodimensional) symbols. The considered constellations give an approximately 0.7 dB to 1 dB gain in terms of BER over a standard QAM modulation.
Źródło:
International Journal of Electronics and Telecommunications; 2016, 62, 2; 159-165
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A model of an energy efficient building automation system
Autorzy:
Horyński, M.
Pietrzyk, W.
Boguta, A.
Powiązania:
https://bibliotekanauki.pl/articles/410706.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
wydajność energetyczna
budynki inteligentne
systemy elektryczne
energy efficiency
programming
building system
intelligent building
electric system
Opis:
A good building is characterized by structural and installation flexibility. Its another important feature consists in adaptability i.e. in potential subdivisions and modification of the functions owing to the fact that the type of activity conducted in a building object may be changed in course of its service life. There are several market requirements to be met by a building. The basic requirements are: the profit for the owner and developer, effective use of available space, low maintenance costs and possibility to generate profits. It is possible to determine the principles of engineering (POE) for a building on the basis of an assessment of quality of the already existing buildings. The following quality categories are determined in the framework of this method: technical, functional, behavioural, organizational and economic category. The users of the building as well as their needs and location in the building and the needs of this building are further elements to be considered. The purpose of the present article is to establish a definition of an intelligent building and to present a model of building automation system in this type of building as well as to present the examples illustrating the use of computer in order to reduce electric energy consumption. The issues associated with the designing of energy efficient systems in the scope of building management have also been discussed.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2012, 1, 1; 41-45
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biologically Inspired Energy Efficient Routing Protocol in Disaster Situation
Autorzy:
Chavan, Shankar D.
Thorat, Amruta S.
Gunjal, Monica S.
Vibhute, Anup S.
Desai, Kamalakar R.
Powiązania:
https://bibliotekanauki.pl/articles/2202999.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
WSN
ACO
AAR
path optimization
efficient routing
Opis:
Wireless sensor network (WSN) plays a crucial role in many industrial, commercial, and social applications. However, increasing the number of nodes in a WSN increases network complexity, making it harder to acquire all relevant data in a timely way. By assuming the end node as a base station, we devised an Artificial Ant Routing (AAR) method that overcomes such network difficulties and finds an ideal routing that gives an easy way to reach the destination node in our situation. The goal of our research is to establish WSN parameters that are based on the biologically inspired Ant Colony Optimization (ACO) method. The proposed AAR provides the alternating path in case of congestion and high traffic requirement. In the event of node failures in a wireless network, the same algorithm enhances the efficiency of the routing path and acts as a multipath data transmission approach. We simulated network factors including Packet Delivery Ratio (PDR), Throughput, and Energy Consumption to achieve this. The major objective is to extend the network lifespan while data is being transferred by avoiding crowded areas and conserving energy by using a small number of nodes. The result shows that AAR is having improved performance parameters as compared to LEACH, LEACH-C, and FCM-DS-ACO.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 1; 163--168
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energooszczędna urbanistyka i architektura
Energy-efficient urban planning and architecture
Autorzy:
Kopietz-Unger, J.
Powiązania:
https://bibliotekanauki.pl/articles/160488.pdf
Data publikacji:
2013
Wydawca:
Polski Związek Inżynierów i Techników Budownictwa
Tematy:
oszczędność energii
urbanistyka
architektura
efektywność energetyczna
Hamburg
ekologia
samowystarczalność energetyczna
energy conservation
urban planning
architecture
energy efficiency
ecology
energy self-sufficiency
Opis:
Na wyspach Łaby, powstała nowa energooszczędna dzielnica Wilhemsburg Mitte w ramach Międzynarodowej Wystawy Budownictwa IBA Hamburg. Ekologiczna dzielnica i jej budynki są samowystarczalne energetycznie i są przykładem możliwości inwestycyjnych w gospodarkę niskoemisyjną. Mieszkańcy i użytkownicy zachęceni zostali do kontrolowania i zmniejszenia zużycia energii, odpadów, a nawet realizacji własnego modułu mieszkalno-biurowego. Projekt ten pokazuje możliwość podniesienia efektywności korzystania z energii elektrycznej i lepsze nią gospodarowanie.
Within the framework of the IBA Hamburg International Building Exhibition, the new energy-efficient district of Wilhemsburg Mitte has been constructed on islands in the Elbe river. This ecological district and its buildings are self-sufficient in energy, and serve as an example of the possibilities of low-emission economic development. Residents and users are encouraged to monitor and reduce their energy consumption and waste production, and even to implement their own residential and office module. This project demonstrates opportunities for improving the efficient use and good management of electrical energy.
Źródło:
Przegląd Budowlany; 2013, R. 84, nr 9, 9; 20-22
0033-2038
Pojawia się w:
Przegląd Budowlany
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Długie, energooszczędne przenośniki taśmowe
Long distance, energy-efficient belt conveyors
Autorzy:
Gładysiewicz, L.
Kawalec, W.
Powiązania:
https://bibliotekanauki.pl/articles/349348.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
przenośniki taśmowe
opory ruchu
krążniki
taśma przenośnikowa
belt conveyors
resistances to motion
idlers
conveyor belt
Opis:
Przedstawiono koncepcję zastosowania nowej generacji energooszczędnych przenośników taśmowych w górnictwie węgla brunatnego. Przenośniki nowej generacji przewidziane są dla dalekiego transportu węgla brunatnego z projektowanych, przyszłych wyrobisk do odległych, istniejących elektrowni. Wdrożenie tej koncepcji umożliwi przedłużenie czasu eksploatacji tych elektrowni co pozwoli obniżyć koszty produkcji energii. Wyniki badań nad oporami ruchu przenośnika taśmowego, oraz dostępne specjalistyczne oprogramowanie umożliwią wielowariantową analizę wpływu wielu czynników na energochłonność napędu. Z analiz teoretycznych wynikają podstawowe kierunki modernizacji transportu taśmowego. Efekty możliwych modernizacji przyczyniające się do obniżenia oporów ruchu przenośnika są sprawdzane i weryfikowane w badaniach eksperymentalnych. Rezultaty prac badawczo- -rozwojowych głównych elementów przenośników wysokiej wydajności: krążników oraz taśmy przenośnikowej, zachęcające wyniki opracowań studialnych oraz liczne ostatnio wdrożenia zagraniczne energooszczędnych przenośników taśmowych dalekiego zasięgu skłaniają do intensywnych prac w tym zakresie.
New generation of energy-efficient belt conveyors for lignite mining industry has been proposed. These conveyors would be suitable for long distance links between the planned lignite pits and the existing power plants. This solution would allow to extend the lifetime of the power plants which would help to decrease the costs of generated power. Results of investigations of belt conveyor resistance to motion together with the available sophisticated, specialised software enable to analyse the influence of various parameters on belt conveyors drive energy efficiency. The theoretical analysis points on the key directions of a belt transportation modernisation. Effects of possible improvements causing the decrease of a belt conveyor resistance to motion are investigated and verified by tests. The results of research and development works focused on main elements of high capacity belt conveyors: idlers and conveyor belt, encouraging conclusions of analytical reports as well as numerous implementations of energy-efficient belt conveyors worldwide suggest that extensive efforts in this field should be done.
Źródło:
Górnictwo i Geoinżynieria; 2009, 33, 2; 137-150
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photobiological safety of the recently introduced energy efficient household lamps
Autorzy:
Necz, Péter P.
Bakos, József
Powiązania:
https://bibliotekanauki.pl/articles/2179018.pdf
Data publikacji:
2014-12-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
ultraviolet
visible light
blue light
optical radiation
hazard
Opis:
Objectives: Nowadays more and more newly introduced light sources (tungsten-halogen, compact fluorescent (CFL) and light-emitting diode (LED) lamps) are used in households. It is important to know whether their radiation poses any possible risk for human health or not. These light sources emit optical radiation not solely in the visible spectrum. Other bands emitted by these sources, i.e., ultraviolet and infrared, are potentially hazardous for human health. The visible light, especially the blue light, could also damage human retina. The purpose of this study was to determine the ultraviolet (UV) and blue light (BL) emissions from halogen bulbs, CFLs and LED lamps, and to evaluate them from the point of view of possible health risks for general public. Material and Methods: The exposure of UV and BL emissions from 19 types of CFLs, 11 types of halogen lamps and 4 types of LED lamps produced by different manufacturers were measured at 200 mm distance from the source. Results: The exposures to UV and BL were below the International Commission on Non-Ionizing Radiation Protection (ICNIRP) exposure limits in spite of the very conservative assumption of the assessment. Conclusions: Results of this study indicate that the UV and BL radiation from the newly introduced lamps does not exceed the current exposure limit values and thus, in comparison with the former incandescent bulbs, does not result in a higher risk for general public.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2014, 27, 6; 1036-1042
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reasons for the growing popularity of energy efficient buildings in Poland
Autorzy:
Pieczara, J.
Powiązania:
https://bibliotekanauki.pl/articles/101277.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
energy efficiency
buildings
energy performance
climate change
energy standard
Directive 2010/31
European standard
Opis:
Recently the so called “green”, ecological or sustainable architecture is becoming more and more popular. Energy efficiency of buildings is one of the aspects of this kind of architecture. In our country, the main reason for the growing popularity of the energy efficient buildings is the new buildings’ legislation. The new buildings’ regulations set up much higher standards for energy performance of buildings than the previous ones. Poland, like all other EU member states, was forced to introduce new energy standards for buildings, by the implementation of the Directive 2010/31/EU. The prospective standards for all new buildings in Poland are on the level of today’s low energy buildings. The purpose of introducing such high standards is to reduce the amount of energy used by the building industry in Europe. According to EEA report one of the results of climate change in our region would be longer and more severe heat periods, and some adaptation action should be taken. Probably, according to the new legislation, too little emphasis was put on the overheating risk of the buildings. At present, in Poland, other reasons for constructing energy efficient buildings are of minor meaning. Especially the financial encouragements for small investors are not effective enough. The situation looks better in the area of public buildings. Institutional investors have more possibilities for obtaining financial support, which is encouraging enough. Also, the obligation to inform the public about the results of the energy performance certificate is not respected fully. This obligation could help to increase the environmental conscience of investors. So there is still much room for improvement.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1195-1207
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energooszczędne instalacje inteligentne w obiektach agroturystycznych
Energy efficient systems in agrotourism
Autorzy:
Horyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/311922.pdf
Data publikacji:
2013
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
gospodarstwo agroturystyczne
energooszczędność
inteligentne instalacje elektryczne
agrotouristic farm
energy efficiency
intelligent electrical installations
Opis:
Corocznie szeroka oferta wakacyjna zawiera również propozycje dla ludzi pragnących bliższego kontaktu z naturą. Próbą spełnienia ich wymagań są coraz liczniej powstające gospodarstwa agroturystyczne. Agroturystyka jest formą wypoczynku występującą na obszarach wiejskich o charakterze rolniczym. Opiera się ona o bazę noclegową i aktywny wypoczynek w gospodarstwie rolnym i jego otoczeniu. Gospodarstwa agroturystyczne są przeważnie firmami rodzinnymi. Coraz częściej priorytetem przy projektowaniu i planowaniu takiej działalności, oprócz wygody gości, jest energooszczędność. Zwraca się również uwagę na ochronę środowiska naturalnego. Artykuł omawia zagadnienia związane z zastosowaniem inteligentnych instalacji elektrycznych w gospodarstwie agroturystycznym.
Each year a wide range of holiday also contains proposals for people wishing to closer contact with nature. An attempt to meet their needs are becoming more and more farms emerging. Cottagesvacation rentals is a form of relaxation which occurs in rural areas agricultural in nature. It is based on the base and an active holiday on the farm and its environment. Farms are mostly family companies. Increasingly a priority in the design and planning of such activities, in addition to the convenience, is energy efficiency. Is also attention to the protection of the environment. The article discusses issues related to the use of intelligent electrical installations in farm.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2013, 14, 3; 273-280
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Percolation Driven Flooding for Energy Efficient Routing in Dense Sensor Networks
Autorzy:
Vakulya, G.
Simon, G.
Powiązania:
https://bibliotekanauki.pl/articles/308970.pdf
Data publikacji:
2009
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
flood routing
percolation
sensor network
Opis:
Simple flooding algorithms are widely used in ad hoc sensor networks either for information dissemination or as building blocks of more sophisticated routing protocols. In this paper a percolation driven probabilistic flooding algorithm is proposed, which provides large message delivery ratio with small number of sent messages, compared to traditional flooding. To control the number of sent messages the proposed algorithm uses locally available information only, thus induces negligible overhead on network traffic. The performance of the algorithm is analyzed and the theoretical results are verified through simulation examples.
Źródło:
Journal of Telecommunications and Information Technology; 2009, 2; 5-12
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-efficient walking over irregular terrain: a case of hexapod robot
Autorzy:
Luneckas, Mindaugas
Luneckas, Tomas
Udris, Dainius
Plonis, Darius
Maskeliunas, Rytis
Damasevicius, Robertas
Powiązania:
https://bibliotekanauki.pl/articles/220953.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hexapod walking robot
irregular terrain
obstacle avoidance
energy consumption
leg trajectory optimization
Opis:
Adaptive locomotion over difficult or irregular terrain is considered as a superiority feature of walking robots over wheeled or tracked machines. However, safe foot positioning, body posture and stability, correct leg trajectory, and efficient path planning are a necessity for legged robots to overcome a variety of possible terrains and obstacles. Without these properties, any walking machine becomes useless. Energy consumption is one of the major problems for robots with a large number of Degrees of Freedom (DoF). When considering a path plan or movement parameters such as speed, step length or step height, it is important to choose the most suitable variables to sustain long battery life and to reach the objective or complete the task successfully. We change the settings of a hexapod robot leg trajectory for overcoming small terrain irregularities by optimizing consumed energy and leg trajectory during each leg transfer. The trajectory settings are implemented as a part of hexapod robot simulation model and tested through series of experiments with various terrains of differing complexity and obstacles of various sizes. Our results show that the proposed energy-efficient trajectory transformation is an effective method for minimizing energy consumption and improving overall performance of a walking robot.
Źródło:
Metrology and Measurement Systems; 2019, 26, 4; 645-660
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An energy-efficient sound system in the opera hall in Poznań
Autorzy:
Telatycka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2065644.pdf
Data publikacji:
2021
Wydawca:
Politechnika Częstochowska
Tematy:
akustyka
przestrzeń teatralna
acoustics
theater spaces
Opis:
The object of the research was to create a computer model of the Stanisław Moniuszko Grand Theater in Poznań. The scope of the study included changing the parameters of the ceiling over the orchestra pit, while not significantly changing the acoustic parameters of the entire interior. The study attempted to determine whether in the existing (or recently designed) hall, modifying the ceiling parameters could improve the sound quality for the audience. The main parameter was the specific weight of the ceiling. The influence of repositioning the inclined ceiling, its angle of inclination and size was also examined. The result of the conducted tests was unambiguous. The acoustic properties of the hall correlated with the weight of the ceiling acoustically connecting the orchestra with the audience. This is worth noting during the design stage of a concert hall.
Źródło:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2021, 10, 1; 77--86
2299-8535
2544-963X
Pojawia się w:
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficient and environmentally friendly hybrid conversion of inland passenger vessel
Autorzy:
Litwin, W.
Leśniewski, W.
Kowalski, J.
Powiązania:
https://bibliotekanauki.pl/articles/259006.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship propulsion
hybrid propulsion
green shipping
zero emission
solar power
Opis:
The development and growing availability of modern technologies, along with more and more severe environment protection standards which frequently take a form of legal regulations, are the reason why attempts are made to find a quiet and economical propulsion system not only for newly built watercraft units, but also for modernised ones. Correct selection of the propulsion and supply system for a given vessel affects significantly not only the energy efficiency of the propulsions system but also the environment – as this selection is crucial for the noise and exhaust emission levels. The paper presents results of experimental examination of ship power demand performed on a historic passenger ship of 25 m in length. Two variants, referred to as serial and parallel hybrid propulsion systems, were examined with respect to the maximum length of the single-day route covered by the ship. The recorded power demands and environmental impact were compared with those characteristic for the already installed conventional propulsion system. Taking into account a high safety level expected to be ensured on a passenger ship, the serial hybrid system was based on two electric motors working in parallel and supplied from two separate sets of batteries. This solution ensures higher reliability, along with relatively high energy efficiency. The results of the performed examination have revealed that the serial propulsion system is the least harmful to the environment, but its investment cost is the highest. In this context, the optimum solution for the ship owner seems to be a parallel hybrid system of diesel-electric type.
Źródło:
Polish Maritime Research; 2017, 4; 77-84
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The creation of energy efficient hybrid vehicles in the Russian Federation
Autorzy:
Karpukhin, A.
Terenchenko, A.
Powiązania:
https://bibliotekanauki.pl/articles/133501.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid vehicle
range extender
traction battery
energy efficiency
climatic conditions
pojazd hybrydowy
zasięg
bateria trakcyjna
efektywność energetyczna
warunki klimatyczne
Opis:
The paper shows the development of the NAMI Russian State Scientific Research Center associated with advanced research in the field of hybrid vehicles. The stages of design, creation and testing of hybrid vehicles with range extender system. The paper presents the results of bench and road tests of hybrid vehicles with range extender system. The peculiarities of creation and operation of hybrid vehicles for countries with difficult climatic conditions, for example, the Russian Federation.
Źródło:
Combustion Engines; 2017, 56, 1; 145-148
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of energy-efficient IBC with IGBT module for photovoltaic applications
Autorzy:
Kumar, C. Prasanna
Rao, Anand
Powiązania:
https://bibliotekanauki.pl/articles/1193903.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
interleaved boost converter
efficiency
stability
power converter
switching frequency
Opis:
The proposed study is improvised value-engineered modifications for the basic interleaved boost converter (IBC) by including relevant modifications in circuits, which is expected for a better performance in switching with reduction in losses. The newly modified IBC circuit with insulated gate bipolar transistor (IGBT) along with converter has been experimented by simulations and the results are tabulated to modified IBC with metal oxide silicon field effect transistors. Further experimental analysis and validations of the proposed simulation with hardware developed adopting model SKM195GB066D consisting of IGBTs is presented. This study further enhances and summarises the optimum utilisation and the performance of IBC with the proposed IGBT modules that synchronises power diode. Enhancing the simulation outcomes, the hardware is proposed and developed to be tested for a load up to 1.5 kW with the evaluation of key parameters such as efficiency of the converter.
Źródło:
Power Electronics and Drives; 2020, 5, 40; 73-81
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energooszczędny napęd młyna kulowego
Energy-efficient motor in ball mill application
Autorzy:
Zawilak, T.
Zawilak, J.
Powiązania:
https://bibliotekanauki.pl/articles/972710.pdf
Data publikacji:
2017
Wydawca:
Wydawnictwo Druk-Art
Tematy:
silnik synchroniczny
magnesy trwałe
rozruch bezpośredni
mielenie rudy
synchronous motor
permanent magnet
direct on line starting
grinding the ore
Opis:
W pracy przedstawiono wyniki badań dotyczące zastosowania silników typu LSPMSM w napędzie w procesie mielenia rudy miedzi. Istotą tych silników jest ich prosta budowa i eksploatacja, a uruchomienie odbywa się przez bezpośrednie przyłączenie do napięcia zasilającego. Pokazano charakterystyki eksploatacyjne oraz przeanalizowano właściwości rozruchowe silnika synchronicznego wzbudzanego magnesami trwałymi (P = 630 kW, U = 6000 V, n = 187,5 obr./min) napędzającego młyn kulowy w zakładzie przeróbki miedzi.
This paper presents the results of application Line Start Permanent Magnet Synchronous Motor (LSPMSM) in ball mill drive. The main advantages of these motors are robust construction and direct on line start ability. The full load characteristics and starting abilities of LSPMSM (Pn = 630kW, Un = 6000 V, Nn = 187,5 rpm) driving a ball mill in copper processing plant.
Źródło:
Napędy i Sterowanie; 2017, 19, 6; 68-72
1507-7764
Pojawia się w:
Napędy i Sterowanie
Dostawca treści:
Biblioteka Nauki
Artykuł
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