太阳能辅助空气源热泵空调低温特性研究

Performance research of solar assistant air source heat pump in low temperature condition

为了改善和提高空气源热泵空调冬季低温环境下的工作性能,设计了以翅片-套管复合式换热器为核心部件,以太阳能低温热水作为辅助热源的太阳能辅助空气源热泵空调,并对该热泵空调进行了低温工况性能测试。实验结果证明,当室外环境温度低至-15℃时,太阳能辅助空气源热泵空调与单一空气源热泵空调相比,系统性能得到明显改善,COP提高50%以上。

In order to improve the performance of air source heat pump in low temperature condition, A solar assistant air source heat pump with the fin - tube heat exchanger was designed. The heat pump can work with solar heat water and air as heat sources at same time. The working performance of the heat pump in low temperature condition was test. The results show that compare with the air source heat pump, the performance was improved clearly in low temperature condition and COP of the solar assistant air source heat pump are 50% more than single air source heat pump when the outdoor environment temperature is - 15℃.