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Wyświetlanie 1-15 z 247
Tytuł:
Lignocellulosic biomass as potent feedstock resource for bioethanol production: Recent updates
Autorzy:
Aarti, Chirom
Khusro, Ameer
Agastian, Paul
Powiązania:
https://bibliotekanauki.pl/articles/1839589.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bioethanol
Fuel
Lignocellulosic biomasses
Renewable sources
Opis:
Non-renewable fossil fuels are unable to fulfil today`s requirements of the societies in terms of energy requirements. The increasing demands for energy have emphasized the researchers to search for alternative sources of energy. Among distinct alternative energy resources, bioethanol has attracted an immense attention worldwide. Currently, lignocellulosic biomasses are considered as the largest renewable resources for the production of bioethanol due to its maximum abundance on the earth. Pre-treated lignocellulosic biomasses are converted into bioethanol by both direct microbial conversion and hydrolysis process along with fermentation. Immobilization and nanotechnology have shown effective roles in the improvement of bioethanol from lignocellulosic biomasses. This review focuses on recent developments in bioethanol production from varied lignocellulosic biomasses as cheep feedstock.
Źródło:
World News of Natural Sciences; 2021, 37; 164-181
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compost heap in agrotourism farm as an example of the renewable source of energy
Pryzma kompostowa w gospodarstwie agroturystycznym jako innowacyjne odnawialne źródło energii
Autorzy:
Roman, M.
Powiązania:
https://bibliotekanauki.pl/articles/2053077.pdf
Data publikacji:
2015
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
compost heap
renewable sources of energy
agricultural farms
Opis:
The purpose of this article is to present a compost heap as the method of using an energy produced in the composting process on an agri-tourism farm. In the first part of the paper the characteristics of renewable energy sources in selected countries of the European Union have been presented. For this purpose, data has been used which is provided in the document titled „Energy from renewable sources in 2012” made available by the Central Statistical Office. In the further part of this article, the use of a compost pile on agri-tourism farm for water heating has been presented. The heat is produced in a compost heap and “waste” created in this process is a valuable natural fertilizer, which is useful in the agricultural works and ecological garden.
Celem artykułu jest zaprezentowanie pryzmy kompostowej jako sposób wykorzystania energii wytwarzanej w procesie kompostowania w gospodarstwie agroturystycznym. W pierwszej części opracowania przedstawiono charakterystykę odnawialnych źródeł energii w wybranych krajach Unii Europejskiej. Do tego celu wykorzystano dane Głównego Urzędu Statystycznego pt. „Energia ze źródeł odnawialnych w 2012 roku”. W dalszej części artykułu przedstawiono zastosowanie pryzmy kompostowej w gospodarstwach agroturystycznych do ogrzewania wody. W pryzmie kompostowej produkowane jest ciepło, a „odpady” powstałe z tego procesu stanowią wartościowy nawóz naturalny, przydatny w pracach rolnych i w ogrodzie ekologicznym.
Źródło:
Economic and Regional Studies; 2015, 08, 3; 123-130
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integral index of operation quality for evaluation of impact of distributive generation sources on electric network modes
Autorzy:
Lezhniuk, P. D.
Komar, V. O.
Sobchuk, D. S.
Teptia, V. V.
Gryniewicz-Jaworska, M.
Powiązania:
https://bibliotekanauki.pl/articles/103098.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
electric network
renewable
renewable sources of energy
operation quality
integral index
Opis:
Method of operation quality evaluation of electric network, comprising renewable sources of energy (RSE) is considered. Integral index that enables to evaluate the impact of RSE on energy losses and its quality as well as balance reliability in electric network is suggested. Mathematical model is constructed, taking into account the assumption that electric network with RSE may be in various operation modes, characterized by different technical economic indices. To determine the integral index of operation quality of electric network with RSE in all possible states tools of Markov processes theory and criterial method are used.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 2; 65-71
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PROSPECTS FOR THE DEVELOPMENT OF PROSUMER ENERGY IN POLAND
Autorzy:
Zajączkowska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/489109.pdf
Data publikacji:
2016
Wydawca:
Instytut Badań Gospodarczych
Tematy:
prosumer
energy sources
renewable sources of energy
climate and energy policies
Opis:
Renewable energy will play a key role in the transition towards a competitive, secure and sustainable energy system. In 2014 the European Commission proposed an objective to increase the share of renewable energy to at least 27% of the EU's energy consumption by 2030. The European Council endorsed this target which is binding at EU level. The Renewable Energy Directive (Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC) was implemented in Poland on 20 February 2015 by the new renewable energy sources act. The objective of this article is to analyse the current state of the Polish energy sector related to the prosumer energy industry. It also describes the future potential for the development of prosumer energy in Poland. The analysis was conducted in the light of the new EU climate and energy initiatives. At the beginning, the article presents the current general state in the EU’s energy sector. European Union Climate and Energy Package targets up to 2050 and the state of renewable energy use gives the background to conduct an analysis of prospects for the development of prosumer energy in Poland. That is why the last part is devoted to the prosumer energy sector in Poland in the context of European Union regulations. The critical analysis of the current situation in that sector has made it possible to evaluate prospects for the development of prosumer energy in Poland in the context of the recently introduced legal regulations.
Źródło:
Oeconomia Copernicana; 2016, 7, 3; 439-449
2083-1277
Pojawia się w:
Oeconomia Copernicana
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:
A study of the labour market of renewable sources of energy in Poland
Autorzy:
Graczyk, Alicja Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/570190.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
renewable energy sources
labour market
investigations
Opis:
The main purpose of the article is to analyse the renewable energy sources labour market in the country based on the example of survey studies conducted in Lower Silesia in 2010 commissioned by the Marshal’s Office. The author took part in the discussed project as a member of the research team and is the co-author of the final publication. The study was conducted as part of a project by the Department of Economic Development of the Marshal’s Office of the Lower Silesian Voivodeship in 2010 entitled “Prognoses and analyses of the potential of the Lower Silesia to use renewable energy sources”. The article has analysed the following: employment in the RES sector, revenues and savings due to RES, and human resources. The author has also identified the pro-employment effects in the RES sector on the domestic and EU markets; she has also made prognoses for the demand for work in the RES sector. Study results show that the increase of employment in the sector resulting from the increase in production and installed power shall be related to biomass, solar power, and wind power technologies. From the data pertaining to employment in Lower Silesia one may conclude that the RES sector employs mostly specialists, managers, and physical labourers. Unmet demand for physical workers in the forestry and agricultural sectors is visible.
Źródło:
Ekonomia XXI Wieku; 2014, 4(4); 116-125
2353-8929
Pojawia się w:
Ekonomia XXI Wieku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Offshore wind farms in Europe and worldwide : the possibilities of selected countries and the state of development of installations in Poland
Autorzy:
Prugar, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/101768.pdf
Data publikacji:
2019
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
offshore
renewable energy sources
Baltic Sea
Opis:
The offshore sector is one of the most dynamically developing branches of the economy. The countries with access to the sea in this sector see an opportunity to produce cheap clean energy. One of the countries which may become beneficiaries of the development of this technology is Poland, because the Baltic Sea has excellent conditions for generating energy by means of wind farms.
Źródło:
Energy Policy Studies; 2019, 1 (3); 41-48
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production and use of Biofuels
Produkcja i wykorzystanie biopaliw
Autorzy:
Boczar, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2033456.pdf
Data publikacji:
2004-12-31
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
Biofuels
Renewable energy sources
Fuel production
Opis:
The aim of this paper is to show the state and prospects of development of biofuels production in chosen countries. Legal and financial regulations on biofuels production as well as opportunities of putting to use raw materials in order to this are also discussed. The paper indicates that the most significant producers of ethanol have been Brazil and the USA, while the biggest producers of biodiesel have been Germany, France and Italy.
Świadomość wyczerpywania się zasobów konwencjonalnych źródeł energii oraz nadprodukcja żywności spowodowały skupienie wysiłków na energetycznym wykorzystaniu surowców rolniczych. Wykorzystanie surowców rolniczych na cele paliwowe przyczyni się do zagospodarowania nadmiaru produktów rolniczych. Produkcja biopaliw jest droższa niż produkcja paliw mineralnych, dlatego stosuje się różne regulacje w celu zachęcenia do produkcji biopaliw. W ostatnich czasach mocno rozwija się produkcja biopaliw ciekłych: biodiesla, bioetanolu. Na świecie (Brazylia, USA) dominuje produkcja bioetanolu, natomiast w Europie - produkcja biodiesla.
Źródło:
Journal of Agribusiness and Rural Development; 2004, 3, 359; 21-29
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Information support of optimal control of modes of electric systems with renewable energy sources
Autorzy:
Kulyk, V. V.
Bartetska, I. A.
Buslavets, O. A.
Gryniewicz-Jaworska, M.
Powiązania:
https://bibliotekanauki.pl/articles/103356.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
renewable sources of electric energy
electric systems
optimal control
information support
Opis:
To provide necessary quality of electric energy and reliable supply and reduce environmental contamination as a result of energy units operation, renewable sources of energy (RSE), in particular solar electric stations (SES), wind electric stations (WES) and small hydropower stations (SHES) are intensively developed. The paper considers the conditions of optimality of renewable sources of energy (RSE) functioning in electric systems, controllability of which is limited by the impact of non-stable weather conditions. The influence of control system information support on the efficiency of RSE usage is shown.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 21-26
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power plants of Poland and Slovakia in aspect of sustainable development
Elektrownie w Polsce i Słowacji w aspekcie zrównoważonego rozwoju
Autorzy:
Kolcun, Michal
Rusek, Karolina
Valentiny, Tomáš
Powiązania:
https://bibliotekanauki.pl/articles/405489.pdf
Data publikacji:
2019
Wydawca:
Politechnika Częstochowska
Tematy:
support mechanisms of renewable sources
renewable sources
grants
subsidies
feed-in tariffs
tradeable certificates
mechanizmy wsparcia odnawialnych źródeł
źródła odnawialne
granty
dotacje
taryfy gwarantowane
certyfikaty zbywalne
Opis:
The main aim of this paper was to determine the efficiency and appropriateness of the support schemes used for the support of renewable energy sources in Poland and Slovakia. The results showed that the suitability of using a particular instrument depends on the conditions in the country. Based on the results, the most appropriate instrument within Poland is a factor that brings together the level of energy consumer taxation and tradeable certificates. Grants were also a suitable instrument in this country, while subsidies did not have a significant effect. In the case of Slovakia, the only significant (appropriate) instrument was the factor capturing the level of electricity taxation and the level of tariffs provided to market operators.
Głównym celem tego artykułu było określenie wydajności i odpowiedniości systemów wsparcia wykorzystywanych do wspierania odnawialnych źródeł energii w Polsce i na Słowacji. Wyniki pokazały, że przydatność korzystania z określonego instrumentu zależy od warunków panujących w kraju. Na podstawie uzyskanych wyników najodpowiedniejszym instrumentem w Polsce jest czynnik, który łączy poziom opodatkowania konsumentów energii i zbywalnych certyfikatów. Dotacje były również odpowiednim instrumentem w tym kraju, a dotacje nie miały znaczącego wpływu. W przypadku Słowacji jedynym istotnym (odpowiednim) instrumentem był czynnik odzwierciedlający poziom opodatkowania energii elektrycznej i poziom taryf przekazywanych operatorom rynku.
Źródło:
Polish Journal of Management Studies; 2019, 20, 2; 300-310
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
RENEWABLE ENERGY SOURCES AND THIRD GENERATION UNIVERSITY
Autorzy:
Pavlov, Daniel
Powiązania:
https://bibliotekanauki.pl/articles/450524.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
Renewable Energy Sources
Technostarters
Third Generation University
Opis:
Since the beginning of the 21st century, entrepreneurs are able to use the innovations at the universities in order to set up their own business. That collaboration is part of the concept of the “Third Generation University”. The aim of this paper is to outline some possibilities for innovative business development in the Ruse region, Bulgaria that are aimed at supporting technostarters who use biomass for energy production. It describes the need of renewable energy sources in EU context, gives some arguments in university support to entrepreneurs and describes an example of the collaboration of Ruse University with a company that uses biomass for energy production.
Źródło:
International Journal of Emerging and Transition Economies (IJETE); 2010, 3, 2; 285-299
1308-2701
Pojawia się w:
International Journal of Emerging and Transition Economies (IJETE)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Investment Efficiency by Using Renewable Energy Sources
Autorzy:
Grzeszczyk, T. A.
Izdebski, M.
Powiązania:
https://bibliotekanauki.pl/articles/409252.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
investment efficiency
renewable energy sources
project evaluation
Opis:
The reduction of natural resources and the ever increasing demand for energy forces research on new energy sources. In the case of obtaining energy from non-renewable sources of energy, natural resources are used as fuel in the combustion process. This way relatively high calorific value is achieved but it is associated with the number of fundamental flaws. Among other things, this may include destruction of the environment in the vicinity of extraction of conventional fuels’ sources, emission of large amounts of harmful substances during the combustion of conventional fuels causing the pollution of natural environment and there is a danger of life or health loss for people working in the extraction of fossil fuels. The use of renewable energy sources is related to interesting investment opportunities in the energy field and there are no problems mentioned above. For these reasons, it is worthwhile to conduct research on improving investment efficiency by using new, renewable sources. Therefore, the purpose of this paper is showing the opportunities of improving efficiency of electric power investment by using renewable energy sources. This article presents a comprehensive overview of renewable technologies used to produce electricity. Then, the attention was focused on assessing the financial efficiency of wind turbines. The considerations were illustrated with the examples of calculation of financial ratios NPV and IRR for a hypothetical investment in the production of electric power using the wind farm. The calculations and analysis conducted can provide interesting basis for further research on improving electric power investment efficiency by using renewable energy sources and new comprehensive evaluation methods of such investments. Comprehensive evaluation methods should take into consideration multifaceted nature of the projects.
Źródło:
Research in Logistics & Production; 2016, 6, 4; 331-342
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy costs in a single family house with gas boiler for a heating system and solar collectors in a domestic hot water system
Autorzy:
Wądołowska, Bernadetta
Krawczyk, Dorota Anna
Powiązania:
https://bibliotekanauki.pl/chapters/31015901.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
renewable energy sources
solar collectors
DHW
heating
Opis:
Solar collectors are commonly used in domestic hot water (DHW) systems in different types of buildings. In this paper we conducted the analysis for a single family house located in two countries: Poland (Warsaw) and Spain (Madrid). Various factors like national rules, climatic conditions, investment costs or fuel and electricity prices were taken into consideration. We took into account flat-plate and vacuum pipe collectors to select the best solution. The results show that the use of solar collectors in Poland and Spain is economically justified. Moreover we analyzed heat loses and annual operating costs of the heating installation for both buildings and they were found to be at a similar level, due to high fuel prices in Spain.
Źródło:
Innovations – Sustainability – Modernity – Openness. Energy; 9-17
9788366391291
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Renewable energy sources today and tomorrow
Autorzy:
Wilas, Janusz
Maśniak, Robert
Daniszewski, Piotr
Jadczak, Paula
Powiązania:
https://bibliotekanauki.pl/articles/1192619.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Renewable Energy Sources
Environment
Sustainability
Green Energy
Opis:
Renewable energy sources (RES) have significant potential to contribute to the economic, social and environmental energy sustainability of small islands. They improve access to energy for most of the population, they also reduce emissions of local and global pollutants and they may create local socioeconomic development opportunities. A majority of the communities around the world rely heavily on oil, natural gas and coal for their energy needs. These fuels draw on lots of resources that will eventually diminish, which in turn makes them too expensive or too environmentally damaging to recover. This review article discusses the advantages and disadvantages of renewable energies; therefore based on the benefits of these energy resources, the use of renewable energies, instead of, fossil fuels will be a good solution for the control of the environmental, social and economical problems of our communities.
Źródło:
World Scientific News; 2016, 60; 103-112
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SUPPORT FOR RENEWABLE ENERGY IN GERMANY AS AN EXAMPLE OF EFFECTIVE PUBLIC POLICY
Autorzy:
Baran, Bernadeta
Powiązania:
https://bibliotekanauki.pl/articles/489051.pdf
Data publikacji:
2015
Wydawca:
Instytut Badań Gospodarczych
Tematy:
renewable energy sources
green growth
sustainable development
Opis:
This article aims to analyze the process of energy transformation in Germany and renewable energy state support as an example of a strategic and effective policy. Energy transition in Germany, which leads to replacement of conventional energy with renewable sources and increase of energy efficiency is a long-term project requiring a strong state intervention. This project is supported with European Union green energy policy giving favorable legal and institutional framework for green technologies development. The process of energy transformation in Germany started more than two decades ago and nowadays this economy benefits from growing number of new jobs and export of high-tech products. The article analyzes the concept of "green growth" in the EU, which is both determinant and the effect of energy transformation in Germany. It discusses support mechanisms and instruments for German green energy sector, transformation goals in that area, financing sources and the most important economic effects.
Źródło:
Oeconomia Copernicana; 2015, 6, 2; 143-158
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 247

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