Journal of Solar Energy Research Updates最新文献_第5页

Numerical Analysis and Optimization of Area Contribution of The PV Cells in the PV/T Flat-Plate Solar Air Heating Collector PV/T平板太阳能空气加热集热器中光伏电池面积贡献的数值分析与优化

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.5

Y. Nassar, Samer Alsadi, K. Ali, A. Yousef, A. Massoud

{"title":"Numerical Analysis and Optimization of Area Contribution of The PV Cells in the PV/T Flat-Plate Solar Air Heating Collector","authors":"Y. Nassar, Samer Alsadi, K. Ali, A. Yousef, A. Massoud","doi":"10.31875/2410-2199.2019.06.5","DOIUrl":"https://doi.org/10.31875/2410-2199.2019.06.5","url":null,"abstract":"This paper presents a practical design of combination solar photovoltaic panel (PV) and an ordinary flat-plate air heating solar collector (FPSC. (The offered collector generated both electrical and thermal power for many applications such as (drying, heating, cooling, etc...). The PV cells are placed in the entrance of the (FPSC), the design avoids the temperature increasing of the PV. In this paper the photovoltaic thermal (PV/T) collector energy analysis were carried out. A mathematical model has been built in order to determine the optimum contribution ratio of the PV cells in the offered collector. The model takes into account the variation of the electrical characteristics with solar radiation and the PV cell's temperature. The obtained results have shown that for a (PV/T) collector of 3m long, the maximum energy extracted from the collector, when the length of the PV panel is 2.4 m and the rest of the collector is ordinary FPSC. Furthermore, the electrical efficiency and the thermal efficiency of the PV/T system was found to be higher than that of the conventional separated systems.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"336 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133014751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Design and Evaluation of a Concentrated Solar-Powered Thermal-Pasteurization System 聚光太阳能热巴氏杀菌系统的设计与评价

Journal of Solar Energy Research Updates Pub Date : 2019-01-17 DOI: 10.31875/2410-2199.2019.06.4

B.D. Plourde, A. Gikling, T. Marsh, M.A. Riemenschneider, J.L. Fitzgerald, W.J. Minkowycz, J. Kiplagat, J.P. Abraham

{"title":"Design and Evaluation of a Concentrated Solar-Powered Thermal-Pasteurization System","authors":"B.D. Plourde, A. Gikling, T. Marsh, M.A. Riemenschneider, J.L. Fitzgerald, W.J. Minkowycz, J. Kiplagat, J.P. Abraham","doi":"10.31875/2410-2199.2019.06.4","DOIUrl":"https://doi.org/10.31875/2410-2199.2019.06.4","url":null,"abstract":"A device has been designed, constructed, and tested for heating fluids using solar energy. The device heats water to levels to kill pathogens by a parabolic reflecting surface that concentrates solar energy along an axis. Among the components that increase the thermal performance of the system is a thermally actuated valve, which controls the temperature and the thermal exposure duration of the fluid to cause deactivation of targeted pathogens. Also, a novel fluid-to-fluid heat exchanger arranged in counter flow is used.\u0000Experiments were performed with a water solution containing non-pathogenic Escherichia coli K-12 MG1655 (E. coli) bacteria. The results showed that the system is capable of pasteurization to levels where no living pathogens were detected in the heated fluid. The experiments were carried out over a wide range of temperatures and exposure durations to test the device and the underlying mathematical model. E. coli log reductions greater than 1 were achieved in all cases and it is shown that arbitrary values of reduction can be achieved with appropriate temperature/time settings.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127576431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Combustion of Emulsified Glycerol-Heavy Oil Fuel Droplet 乳化甘油-重油燃料液滴的燃烧

Journal of Solar Energy Research Updates Pub Date : 2018-03-05 DOI: 10.31875/2410-2199.2018.05.5

S. Soulayman, K. Youssef

引用次数: 1

Annual and Seasonal Trends of Solar Radiation in Athens, Greece 希腊雅典太阳辐射的年度和季节趋势

Journal of Solar Energy Research Updates Pub Date : 2018-03-05 DOI: 10.31875/2410-2199.2018.05.3

Harry D. Kambezidis

引用次数: 4

Fabrication and Evaluation of Two-Junction Carbon Thin Film Photovoltaic Devices 双结碳薄膜光伏器件的制备与评价

Journal of Solar Energy Research Updates Pub Date : 2018-03-05 DOI: 10.31875/2410-2199.2018.05.1

Hisato Kato, Yuki Yamamoto, Shinya Kato, Naoki Kishi, Tetsuo Soga

{"title":"Fabrication and Evaluation of Two-Junction Carbon Thin Film Photovoltaic Devices","authors":"Hisato Kato, Yuki Yamamoto, Shinya Kato, Naoki Kishi, Tetsuo Soga","doi":"10.31875/2410-2199.2018.05.1","DOIUrl":"https://doi.org/10.31875/2410-2199.2018.05.1","url":null,"abstract":"In this work, we have fabricated the two-junction carbon photovoltaic devices which consisted of Al/fullerene (C60)/amorphous carbon (a-C)/C60/a-C/ITO glass structure. We also investigated their photovoltaic properties with the same bandgap and without involving the tunnel-connect layer. We found that the open-circuit voltage in the two-junction photovoltaic device almost doubled compared to the single-junction type and it confirmed that the tandem structure was successfully formed without any tunnel-junction although short-circuit current in the two-junction tended to decrease greatly in comparison to single-junction. Moreover, we studied the effect of film thickness of each film on the photovoltaic properties of two-junction carbon photovoltaic devices and as a result, there was a dependence of film thickness on the photovoltaic performance in the two-junction type. Thus, it can be concluded that the film thickness is one of the significant influences to enhance the photovoltaic performances and our results might be an important approach for fabricating the higher efficiency of two-junction carbon thin film photovoltaic devices made of different band gap.","PeriodicalId":197215,"journal":{"name":"Journal of Solar Energy Research Updates","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122855868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Commercial Scale Solar Power Generation (5MW to 50 MW) and its Connection to Distribution Power Network in the United Kingdom 英国商业规模太阳能发电(5MW至50mw)及其与配电网的连接

Journal of Solar Energy Research Updates Pub Date : 2018-03-05 DOI: 10.31875/2410-2199.2018.05.4

Jayanta Deb Mondol, Gibu Jacob

引用次数: 0