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化工学报  2014 

新型光伏-太阳能环形热管/热泵复合系统的实验研究

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Keywords: 太阳能,热泵,环形热管,热力学,可用能

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Abstract:

光伏-太阳能环形热管/热泵复合系统将太阳能环形热管循环模式和太阳能热泵循环模式有机结合,两者采用相同的工质,共用一个PVT蒸发器和冷凝器。当太阳辐照强度较强,工质在PVT蒸发器中的温度高于冷凝器中的温度时,可以利用环形热管模式制热;当太阳辐照强度较弱或工质在PVT蒸发器中与冷凝器中的温差无法满足环形热管模式运行时,可以利用热泵模式制热。两种模式既能够独立运行,又可以互相切换,确保热能的稳定供应,同时能够明显降低系统耗电量。搭建了光伏-太阳能环形热管/热泵复合系统实验平台,对复合系统在环形热管模式和热泵模式独立运行时的瞬时性能和全天性能进行了实验研究。

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