太阳能热光伏系统实验研究

对太阳能热光伏系统(STPV)进行了全面的实验研究,对系统组成装置即聚光器、辐射器、滤波器、电池、散热器等进行了合理的选型及加工;设计了系统中热光伏转换器的整体结构,并进行实验搭建,结合自动跟踪装置,对整个STPV系统进行了现场测试,分析了太阳能量密度对辐射器温度的影响,对不同辐射器入口条件下的温度分布进行了比较,并测量了不同辐射器温度下的电池输出特性;研究了散热器流速对电池温度及其输出功率的影响;讨论了实验测量值与理论解存在差异的原因。

Experimental investigation of the STPV system

The subassemblies of the solar thermophotovoltaic (STPV) system including the concentrator, the emitter, the filter, batteries and cooling system are experimentally investigated and processed. The structure of STPV converter is designed and experimentally built. Then by combining with the auto-tracking module, tests were performed on the whole system and the characteristics including the start-up, the emitter temperature distribution and the cell output power are measured, also the effects of the filter, the quartz glass thermal shrouds, quartz glass window,etc on the emitter temperature and cell performance are analyzed. Finally, the system efficiency is evaluated with the experimental results and the reasons for the difference between the theoretical and experimental results are discussed.