双玻光伏组件PV/T集热器特性及实验研究
CHARACTERISTIC AND EXPERIMENTAL STUDUY OF PV/T COLLECTOR WITH DOUBLE GLASS PHOTOVOLTAIC MODULES
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摘要: 利用双玻光伏组件设计了一种新的PV/T(photovoltaic/thermal)太阳能集热器,并对其热转换和传输特性进行研究。制备了透光率分别为50%和10%的2种双玻光伏组件PV/T空气集热系统样机,并对其特性进行实验研究。结果表明透光率50%的PV/T太阳能集热器,其吸热板温度高于双玻光伏组件温度,透光率10%PV/T太阳能集热器中吸热板温度低于双玻光伏组件温度,其最大温度差达到30℃,光伏组件受吸热板温度影响减小,且透光率50%集热系统输出空气温度达94℃,日热效率为49.2%,光伏组件输出效率达到9.5%,具有较好的实用性,实验结果与理论分析结果一致。研究为PV/T太阳能集热器优化设计提供了一种新的途径。Abstract: A novel PV/T(Photovoltaic/Thermal)solar collector integrating double glass photovoltaic modules(DGPM)was designed.The photo-thermal conversion and transmission characteristics of such novel collector were studied. Two PV/T collector prototypes,of which the DGPM transmittance was respectively 50% and 10%,were prepared and comparatively analyzed by experiments. The results showed that for PV/T solar collector with transmittance of 50%,the temperature of heat absorber plate was higher than that of DGPM;while for PV/T solar collector with transmittance of 10%,the temperature of heat absorber plate was lower than that of DGPM. In addition,the collector system with transmittance of 50% transmittance collector system had better practicability,with the output air temperature reaching 91℃,the daily thermal efficiency reaching 49.2% and the solar cells output efficiency up to 9.5%. The experimental results are consistent with the theoretical analysis results. The study provides a reference for optimum design of PV/T solar collector.