摘要
为研究复合抛物面聚光器（compound parabolic concentrator，CPC）在光伏，热（PV／T）太阳能系统中的应用特性，分析CPC-PV／T集热器内部的热传输机理，建立CPC-PV/T太阳能系统的光热、光电能量转换理论。并对系统的光热、光电转换特性进行研究，结果表明，CPC型聚光器在PV/T系统中的应用，一定程度上会导致系统光热转换性能的降低，但能有效提高系统光电转换效率。另外，设计无聚光PV/T太阳能系统样机和CPC型聚光PV／T太阳能系统样机，并对2种样机的光热、光电特性进行测试及对比分析。其中，CPC-PV/T样机的热效率为39．6％、输出电效率5．4％，无聚光PV/T样机热效率为44％、输出电效率仅为4．1％，实验结果与理论分析结果一致。
In order to study the application characteristics of compound parabolic concentrator （CPC） in photovoltaic / thermal solar system, the heat transfer mechanism of the CPC-PV/T collector was analyzed, and the theoretical model of the CPC-PV/T solar system was established. The photo-thermal and photoelectric conversion characteristics of the system were studied based on the theoretical model. The results show that the application of CPC in the PV/T system can significantly improve the photoelectric conversion efficiency of the PV/T system but also reduce the heat transfer performance of the system to a certain extent. In addition, the prototypes of the non-concentrating PV/T solar system and the CPC-PV/T solar system were designed in this study. Moreover, the photo-thermal and photoelectric characteristics of two prototypes were tested and compared. The thermal efficiency and output power efficiency of the CPC-PV/T system were 39.6% and 5.4%, respectively, while that of the non-concentrating PV/T system were 44% and 4.1%, respectively. The experimental results are consistent with theoretical analysis.
作者
肖丽仙
何永泰
Xiao Lixian, He Yongtai(Department of Physics and Electron Science, Chuxiong Normal University, Chuxiong 675000, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第9期2536-2543,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51566001)
云南省教育厅重大专项研究(ZD2014014)
关键词
复合抛物面聚光器(CPC)
PV/T系统
光热特性
热效率
光电特性
compound parabolic concentrators （CPC）
photovohaic/thermal （PV/T） system
photo-thermal characteristics
thermal efficiency
photoelectric characteristics
