Optical analysis of a hybrid solar concentrating Photovoltaic/Thermal (CPV/T) system with beam splitting technique

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• 作者：Peng Hu (15209)
  Qian Zhang (15209)
  Yang Liu (15209)
  ChunChen Sheng (15209)
  XiaoFang Cheng (15209)
  ZeShao Chen (15209)
  
• 关键词：solar energy ; hybrid concentrating Photovoltaic/Thermal (CPV/T) system ; flat Fresnel ; type concentrator ; beam splitting
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2013
• 出版时间：June 2013
• 年：2013
• 卷：56
• 期：6
• 页码：1387-1394
• 全文大小：1325KB
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• 作者单位：Peng Hu (15209)
  Qian Zhang (15209)
  Yang Liu (15209)
  ChunChen Sheng (15209)
  XiaoFang Cheng (15209)
  ZeShao Chen (15209)
  
  15209. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, 230027, China
  
• ISSN：1869-1900

文摘

A novel hybrid solar concentrating Photovoltaic/Thermal (CPV/T) system with beam splitting technique is presented. In this system, a beam splitter is used to separate the concentrated solar radiation into two parts: one for the PV power generation and the other for thermal utility. The solar concentrator is a flat Fresnel-type concentrator with glass mirror reflectors. It can concentrate solar radiation onto solar cells with high uniformity, which is beneficial to improving the efficiency of solar cells. The thermal receiver is separated to the solar cells, and therefore, the thermal fluid can be heated to a relatively high temperature and does not affect the performance of solar cells. A dimensionless model was developed for the performance analysis of the concentrating system. The effects of the main parameters on the performance of the concentrator were analyzed. The beam splitter with coating materials Nb2O3/SiO2 was designed by using the needle optimization technique, which can reflect about 71% of the undesired radiation for silicon cell(1.1 μm < λ ?3 μm) to the thermal receiver for thermal utility. The performance of this CPV/T system was also theoretically analyzed.