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  • Articles  (529)
  • 2010-2014  (529)
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  • Articles  (529)
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  • 1
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    Effect of holographic coatings on the efficiency of silicon photoconverters (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: The design of holographic concentrator integrated with photoconverter has been suggested and the light radiation transmission through the holographic coating has been considered. This design improves the solar conversion efficiency by photoconverter and does not require solar tracking.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 2
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    Model-based analysis of nonstationary thermal mode in premises with an insolation passive heating system with a three-layer translucent shield (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: The results of the model-based study of nonstationary thermal mode in premises with an insolation passive heating system with a three-layer translucent shield are presented. The article is aimed at determining daily variations in the air temperature of the heated premise on typical heating season days and analyzing the optimization of the thermal capacity of the short-term (daily) thermal battery of the heating system on this basis.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 3
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    Experimental investigation on energy and exergy analysis of coriander ( Coriadrum sativum L.) leaves drying in natural convection solar dryer (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: This study deals with thin layer drying characteristics of Coriandrum sativum L. leaves in a natural convection solar dryer. The Coriandrum sativum L. leaves were dried from a moisture content of 88% (w.b.) to 4.5% (w.b.) in 7.5 hours. The obtained drying data were fitted to eight different drying kinetics models. Of these, the model suggested by Midilli et al. [20] had the best fit with the drying behavior of Coriandrum sativum L. leaves. In addition, the thermodynamic behaviour of a solar dryer was evaluated. The energy efficiency during the study varied from 7.81 to 37.93%. The exergy efficiency of the drying process ranged between 55.35 and 79.39%.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 4
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    Advanced technologies of development of power engineering and energy supply of the republic economy (2014)
    Springer
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    Publication Date: 2014-11-16
    Description: The article discusses the possibilities of the combined use of solar energy using parabolic radiation concentrators by creating hybrid solar-thermal installations in the climate conditions of Uzbekistan.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 5
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    Characterization of mono-crystalline silicon solar cell (2014)
    Springer
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    Publication Date: 2014-11-16
    Description: The effects of temperature on the photovoltaic performance of mono-crystalline silicon solar cell have been investigated by current-voltage characteristics and transient photo-response measurements. The fill factor and efficiency values of the solar cell at various temperatures were determined. The variation in the power conversion efficiency and fill factor values is mainly due to the change of short circuit current, open circuit voltage V oc with temperature for the studied mono-crystalline silicon cell. The increase in the short circuit current I sc with the increase of illuminations and temperature is interpreted by the increase in the generation of electron-hole pairs by thermal energy recombination mechanism. The mono-crystalline silicon solar cell exhibits a high efficiency of 14.215% at (AM-1.5) 100 mW/cm 2 . The obtained results indicate that the studied solar cell exhibits a high stability, sensitivity and quality and it can be used for photovoltaic power generation systems as a clean power source.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
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  • 6
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    Optical-geometric parameters of a linear Fresnel mirror with flat facets (2014)
    Springer
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    Publication Date: 2014-11-16
    Description: This paper studies linear Fresnel mirrors (LFMs) with flat facets. A model and a program for calculating the parameters and concentration of LFMs with flat facets have been developed. It is shown that LFMs can provide in increased concentration by up to 30 times at a number of facets of about 50 while ensuring the high uniformity of the concentrated radiation at the receiver.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 7
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    Probabilistic optimal sizing of PV units in a distribution network (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: The aim of this paper is to reduce losses and improve voltage profile of a distribution feeder taking into account probabilistic nature of PV sources and loads, using particle swarm optimization algorithm. The proposed method uses normal distribution and beta distribution for probabilistic modeling of the loads and irradiation respectively. By applying probabilistic load flow, voltage profile and losses for the network are calculated 24 hours a day and four seasons a year. Based on overall results the optimal size of installed PV resources in each buses on the feeder are obtained and compared to the results obtained from a conventional method.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 8
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    Opportunities of increase of energy efficiency of Andijan Hydro Power Plant using wind farms. Part 1 (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: The possibility of the increase in energy efficiency of Andijan Hydro Power Plant by the design of wind farm build-ups has been shown.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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  • 9
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    Method for calculating the power of combined autonomous electric power plants (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: This paper studies the problems of the optimal combination of powers in autonomous combined electric power plants (CEPPs) based on solar photovoltaic (SPVP), wind (WEPP), and microhydro power plants (MHPP) using the criterion of power costs to the consumer taking into account the mode of receipt and consumption of energy. The technical-economic model and the program for calculating CEPPs with energy storage devices (ESDs) is developed, which allows one to determine CEPPs of minimum cost for given modes of generation and consumption (load) of energy. Optimal CEPPs will almost always be single or paired combinations; moreover, in some cases, the proportion of SPVPs reaches 100%. It was shown that CEPPs can provide the minimum cost of power in a wider range of modes of alternative energy sources (AESs) than individual SPVPs, WEPPs, or MHHPs. Generalized cost curves for power from SPVPs, WEPPs, and MHHPs depending on the potentials of AESs for three basic loading modes are given.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
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  • 10
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    Photovoltaic power plants and related power engineering service (2014)
    Springer
    Details
    Publication Date: 2014-11-16
    Description: Problems and aspects of the service management of power engineering and its significance for the operation of photovoltaic power plants are considered.
    Print ISSN: 0003-701X
    Electronic ISSN: 1934-9424
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer on behalf of Allerton Press.
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