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提出一种新型的热管光电/光热(photovoltaic/thermal,PV/T)综合利用系统,该系统可同时产生电能和热能,与传统的水循环PV/T系统相比,热管PV/T系统可避免系统在高纬度地区冬季结冻问题,拓展了PV/T系统的适用范围。主要对热管间距分别为80mm和140mm的PV/T系统进行热效率、电效率和光电光热综合效率的实验测试,分析系统在晴朗天气和多云条件下的光电光热性能。实验结果表明热管PV/T系统的热效率在40%以上,日平均发电效率约10%,系统的综合效率在50%以上,且小管间距(80mm)PV/T系统的光电和光热转换效率比大管间距(140mm)PV/T系统的高,减小热管间距对系统光电性能的影响大于对光热性能的影响。
A new type of photovoltaic / thermal (PV / T) integrated utilization system is proposed, which can generate both electric energy and thermal energy. Compared with the traditional water circulation PV / T system, the heat pipe PV / T system can be avoided The system solves the freezing problem in winter in high latitudes and extends the applicable range of PV / T systems. Mainly on the thermal pipe spacing of 80mm and 140mm PV / T system for thermal efficiency, electrical efficiency and photovoltaic photothermal combined efficiency of the experimental test, the system under sunny weather and cloudy conditions of photo-electro-optical thermal performance. The experimental results show that the thermal efficiency of the heat pipe PV / T system is over 40%, the average daily power generation efficiency is about 10%, the system overall efficiency is above 50%, and the photoelectric to photothermal conversion efficiency ratio of the small tube pitch (80mm) PV / T system Large tube spacing (140mm) PV / T system height, reduce the heat pipe spacing on the system of optical properties greater than the impact on the thermal performance.