风冷式PV/T空调系统日间冷电联产性能实验研究

Experimental study on refrigeration and power cogeneration performance of air-cooled PV/T air conditioning system in daytime

提出了一种风冷式PV/T空调系统,对系统在夏季日间的冷电联产性能进行了实验测试,分析了环境因素、运行参数等对系统发电和制冷性能的影响。结果表明:光伏板温度随太阳辐照度的升高而升高,光伏板输出电效率随光伏板温度的升高而降低;太阳辐照度、室外温度和室外风速都对系统制冷性能有影响,其中室外温度对制冷量和COP的影响最大,当室外温度从23.6℃升高到32.8℃时,制冷量增大1.6倍,COP降低38.8%。该风冷式PV/T空调系统在夏季日间具有一定的冷电联产性能,可进一步优化以拓展其使用时间和应用范围。

This paper presents a kind of air-cooled photovoltaic/thermal(PV/T)air conditioning system.The system refrigeration and power cogeneration performance is tested in summer daytime,and the influences of environmental factors and operating parameters on the power generation and refrigeration performances of the system are analysed.The results show that the temperature of the photovoltaic panel increases with the increase of the solar irradiance,and the output electric power of the photovoltaic panel decreases with the increase of the temperature.The solar irradiance,outdoor temperature and outdoor wind speed all affect the system refrigeration performance,and the outdoor temperature has the greatest influence on the refrigerating capacity and the coefficient of performance(COP).When the outdoor temperature increases from 23.6℃to 32.8℃,the refrigerating capacity increases by 1.6 times and COP decreases by 38.8%.The air-cooled PV/T air conditioning system has a certain refrigeration and power cogeneration performance in summer daytime,which can be further optimized to expand its service time and application range.