Performance study on optical splitting film-based spectral splitting concentrated photovoltaic/thermal applications under concentrated solar irradiation
Performance study on optical splitting film-based spectral splitting concentrated photovoltaic/thermal applications under concentrated solar irradiation
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聚光太阳辐射下基于分光膜的光谱分光聚光光伏/光热应用的性能研究
DOI：
10.1016/j.solener.2020.05.103
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发表时间：
2020-08
期刊：
影响因子：
6.7
通讯作者：
Pan Yuzhai
中科院分区：
文献类型：
--
作者：
Liang Huaxu;Wang Fuqiang;Cheng Ziming;Shuai Yong;Lin Bo;Pan Yuzhai
基于分光膜的分光聚光光伏光热系统（CPV/T）利用太阳光的全光谱，获得更多的有用能量，使光伏电池和吸热器在不同温度下工作。本论文设计并建立了一种基于分光膜的聚光太阳光分光CPV/T系统，以充分利用全光谱太阳光，降低CPV电池的温度。SiO2/TiO 2干涉薄膜的反射谱带与CPV电池的光谱响应谱带匹配良好，避免了红外光对CPV电池的加热。在聚光太阳光照射下，测试了CPV的温度、光电转换效率和光热转换效率。从理论上分析了总能量和火用转换效率。结果表明，在聚光太阳光照射下，采用分光膜的CPV电池温度降低了11.0 K，电池的发电效率和光电转换效率分别提高了9.4%和1.3%。该系统的能量和火用转换效率分别为18.85%和14.61%，在聚光太阳光照射下，与无膜CPV系统相比，分别提高了5.8%和1.5%。
Optical splitting film-based spectral splitting concentrated photovoltaic thermal system (CPV/T) utilises the full spectrum of sunlight to obtain more useful energy and enables the PV cells and thermal absorber work at different temperature. In this work, an optical splitting film-based spectral splitting CPV/T under concentrated solar irradiance was devised and set up to utilise the full spectrum sunlight and decrease the temperature of CPV cell. The reflection bands of SiO2/TiO2interference thin film matched well with the spectral response bands of the CPV cell, which could avoid the infrared light to heat CPV cell. Under concentrated solar irradiation, temperature of CPV, photoelectric and photothermal conversion efficiencies were tested. The overall energy and exergy conversion efficiencies were theoretically analysed. The results showed that the CPV cell with optical splitting film could reduce by 11.0 K, and power generation and photoelectric conversion efficiency of the CPV cell could improve by 9.4% and 1.3% under concentrated solar irradiation, respectively. The overall energy and exergy conversion efficiency of proposed system could achieve 18.85% and 14.61%, i.e., 5.8% and 1.5% higher than those of the CPV system without film under concentrated solar irradiation, respectively.
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