摘要
研究一种以水为冷却工质的面板式PV/T系统的性能。搭建实验系统,在户外条件下测量系统的夏季运行参数。对实验数据进行处理和分析,获得PV/T系统的太阳电池发电效率和热效率。实验结果表明:面板式PV/T系统中电池板的温度平均比普通太阳电池板的温度降低10℃以上,可获得较高的光电转换效率;太阳电池板与工质间的温差仅1.2℃。面板式的布置方式有利于在不影响发电效率的条件下提高工质的出口温度,从而达到更高的热效率以及系统综合利用效率。
The performance study on a flowing-over PV/T system with water as the cooling fluid was presented. An experimental system was built up and various parameters of the PV/T system were tested outdoors in summer. The electric efficiency and thermal efficiency of the system were obtained. The results show that the temperature of the PV panel in the flowing-over PV/T system can be reduced around 10℃ or more compared with the regular PV panel, and thus the conversion efficiency of the PV panel in the PV/T system can be improved significantly. The temperature difference between the PV panel and cooling fluid is about 1.2 ℃. The design of the flowing-over cooling can increase the outlet temperature of water without affecting the electric output. Therefore, a higher thermal efficiency and overall efficiency of the PV/T system can be achieved.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第4期860-864,共5页
Acta Energiae Solaris Sinica
基金
上海市教委
上海市教育发展基金会"曙光计划"(09SG51)
上海市教委第五期重点学科(J51304)
关键词
光伏光热一体化
面板式
电效率
热效率
photovohaic/thermal system
flowing-over cooling
electric efficiency
thermal efficiency
