太阳能与空气源热泵耦合系统供暖性能研究

Research on Heating Performance of Combined Solar and Air Source Heat Pump System

太阳能光热系统与空气源热泵系统的结合,可以充分利用太阳能和空气能这2种低品位热源,实现二者的优势互补。通过模拟计算,分析太阳能与空气源热泵耦合运行下系统的供暖性能。对比分析全天太阳能供热、全天单一空气源热泵供热、太阳能与空气源热泵耦合运行3种运行策略,结果表明相比单一空气源热泵,太阳能辅助空气源热泵耗电功率降低了925.85 W,降低幅度2.17%。该模式下空气源热泵的平均COP为3.96,提升1.7%。在空气源热泵结霜期间,太阳能辅助空气源热泵的平均COP提升22.29%。通过该耦合系统的仿真研究,以期为后续多能互补实验台的搭建以及农宅、办公建筑的应用提供多工况运行参考。

The combination of solar photovoltaic system and air source heat pump system can make full use of the two low-grade heat sources,solar energy and air energy,to achieve the complementary advantages of the two.The heating performance of the system under the coupled operation of solar energy and air source heat pump is analysed through simulation.Comparative analysis of the three operation strategies of all-day solar heating,all-day single air source heat pump heating,and solar and air source heat pump coupled operation yields that compared with the single air source heat pump,the power consumption of the solar-assisted air source heat pump is reduced by 925.85 W,a reduction of 2.17%.The average COP of the air source heat pump in this mode was 3.96,an improvement of 1.7%.The average COP of solar-assisted air source heat pump is improved by 22.29%during the frost period of air source heat pump.The simulation study of this coupled system is carried out with a view to providing a reference for multi-operating condition operation for the subsequent construction of the experimental bench of multi-energy complementarity and the application of farm houses and office buildings.