可再生能源2025，Vol.43Issue(3)：307-315,9.
基于分频纳米流体的低倍聚光光伏/光热系统实验研究
Experimental investigation on a low concentrating photovoltaic/thermal hybrid system based on spectral absorptive nanofluid
摘要
Abstract
In recent years,spectral crossover photovoltaic/thermal(CPV/T)composite technology has attracted much attention by decoupling the crossover from the heat of the PV cell and avoiding problems such as ultra-temperature of the PV cell and restricted taste of the system output thermal energy.However,the research in this field mainly focuses on simulation calculations and lacks experimental studies on thermal and electrical performance under actual meteorological and lighting conditions.In order to investigate the real operating performance of outdoor CPV/T systems,this paper builds a low-frequency concentrated light crossover CPV/T system and a non-concentrated light PV system,and compares and analyses the thermal and electrical output characteristics under concentrated light and non-concentrated light conditions.The effects of the optical properties of the frequency-sharing liquid on the thermal and electrical performance of the concentrating-frequency-shared CPV/T system are further investigated.The results show that the frequency-divided CPV/T system has a higher electrical output power compared to the nonconcentrated PV system,with an electrical output power of 79.7 W and 72.9 W when using deionised water frequency-dividing and silver/water nanofluid frequency-dividing,respectively,compared to 45 W for the nonconcentrated PV system under the same conditions;meanwhile,after the frequency-dividing liquid absorption characteristics are strengthened,the temperature of the cell is lowered,the filling factor is enlarged,and the cell At the same time,after the enhancement of the crossover liquid absorption property,the cell temperature is reduced,the filling factor is increased,the cell performance is improved,and the thermal efficiency of the system is increased by 2.7%,but the crossover liquid absorption property reduces the incident solar irradiation on the surface of the cell,which results in the reduction of the total electrical efficiency of the system by nearly 0.6%.Experimental data support is provided for a crossover-type CPV/T system at low convergence multiples.关键词
光伏/光热发电/低倍聚光/光谱分频/纳米流体Key words
photovoltaic/thermal(CPV/T)/low concentration/spectral beam splitting/nanofluid分类
能源与动力引用本文复制引用
刘冬雪,张险峰,孙天歌,赵志超,林建清,李文志,李英峰,巨星..基于分频纳米流体的低倍聚光光伏/光热系统实验研究[J].可再生能源,2025,43(3):307-315,9.基金项目
国家自然科学基金(51876062) （51876062）
中国长江三峡集团有限公司科研项目(WWKY-2021-0173). （WWKY-2021-0173）
