热光伏系统性能匹配性研究

Investigation of the Matching Performance of Thermo Photovoltaic Modules

摘要:

针对热光伏(TPV)系统建立了数值分析模型, 研究了系统各模块的匹配特性, 讨论了辐射器温度、散热器流速等性能参数对电池温度及输出功率的影响, 并进行了优化组合分析, 以获得系统最佳运行工况。结果表明: 在每一特定辐射器温度下, 都存在一最优散热器入口流速以使得系统效率达到最大。随着辐射器温度的升高, TPV系统效率及输出净功率均随之增大, 但由于电池温度的升高, 系统效率增长梯度逐渐减缓。当辐射温度达到1800K时, 系统效率最高可达到18.22%。

Abstract:

A numerical analysis model of the thermo-photovoltaic (TPV) system was constructed, and the matching properties of different modules were investigated. The influences of the emitter temperature and the velocity of the cooling system on the cell temperature and power output were discussed. The results indicate that there is an optimal velocity of the cooling system at which the maximum system efficiency is gained at every certain emitter temperature. With the increase of the emitter temperature, both the system efficiency and the net power output increase. But due to the rise of the cell temperature, the increase grads of the system efficiency drop. When the emitter temperature reaches 1800K, the maximum system efficiency of 18.22% is gained.