一种多因素参与的建筑一体化发电系统性能评估

Abstract A unique building integrated power generation system, by incorporating a photovoltaic (PV) cell, thermoelectric generator (TEG) modules, a seasonally adjustable microchannel heat pipe (MCHP) array and shape stabilized phase change materials (PCMs) plates, named PV-MHCP-PCM-TEG system was proposed to improve the efficiency of both the PV and TEG in this study. The three-way valve can automatically adjust its direction based on the climate, and the incorporation of MCHP array and PCM plates could enhance the heating transfer and reduce the PV cell’s temperature. Firstly, the mathematical model of the system was developed and verified by experiment in Wuhan, China. Then multi-factors-engaged performance assessment on the unique building integrated power generation system was conducted. Finally, the effect of PCM plates on performance of PV-MHCP-PCM-TEG system was performed. The results show that the system has an annual average power generation efficiency of 16.6% and a power output of 329.3 kWh. Compared to the PV system, the power output of this system increased by 10% and the maximum PV cell’s temperature decreased by 26.8℃, and compared to the PV-TEG system, the power output increased by 5.2% and the maximum PV cell’s temperature decreased by 17.3℃.