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太阳能热泵供热系统中热泵和集热器的结合方式对其性能有较大影响。对热泵在前、集热器在后的热泵串联太阳能供热系统(HP+SC)与集热器在前、热泵在后的太阳能串联热泵供热系统(SC+HP)进行性能模拟和对比。以南京地区气候条件为例,设计出供热能力为10kW的太阳能热泵供热系统,建立其系统数学模型,深入分析两种结合方式下的热泵系统性能。结果表明:在典型晴天,随着太阳辐射强度的增大,热泵串联太阳能供热系统中热泵的性能优于太阳能串联热泵供热系统,热泵串联太阳能系统中的热泵COP最大可提高6.65%。
The combination of heat pump and collector in solar heat pump heating system has a greater impact on its performance. For the heat pump in front, the heat pump in the rear of the heat pump in series solar heating system (HP + SC) and the collector in the front, heat pump after the solar heat pump heating system (SC + HP) performance simulation and comparison. Taking the climate conditions in Nanjing as an example, a solar heat pump heating system with a heating capacity of 10kW was designed and its system mathematical model was established. The performance of the heat pump system under the two combined modes was deeply analyzed. The results show that the performance of heat pump in the heat pump series solar heating system is better than that of the solar energy tandem heat pump system with the increase of solar radiation intensity on typical sunny days. The COP of the heat pump in the solar pump series can be increased by up to 6.65%.