太阳能与空气源热泵集成供热系统研究进展

Research progress on integrated heating system of solar energy and air source heat pump

太阳能与空气源热泵能都具有清洁节能的优点,但两者的性能又均受制于天气状况,在某些工况下不能保证较高的运行能效,若将太阳能与空气源热泵组成集成系统,则可实现双方的优势互补。本文从太阳能与空气源热泵的多种结合方式出发,阐述了近期太阳能与空气源热泵集成供热系统的研究进展,分析了喷射器增效双热源热泵和太阳能光伏光热一体化双热源热泵等6种不同集成系统各自的特点,根据每种系统的特点探讨了各种集成方式的适用范围。指出太阳能可以提高空气源热泵的低温性能,缓解空气源热泵的结霜问题,同时空气源热泵也能弥补太阳能不稳定性和不连续性的缺陷,故太阳能与空气源热泵的结合可以提高供热系统的可靠性与节能性。最后,分析了现有研究的不足之处,并提出了关于未来研究方向的建议。

Although the solar energy and the air source heat pump are all clean and energy-saving,their performances are subject to weather conditions. In some conditions,they can＇t operate with higher efficiencies. If the solar energy and the air source heat pump is integrated,the new system can achieve the complementary advantages. From various the solar energy and the air source heat pump integration methods,the recent progresses of the integrated heating system of solar and air source heat pump were discussed in this paper. The characteristics of solar assisted ejector-compression heat pump,solar photovoltaic/thermal integrated dual heat source heat pump and other kinds of different integrated system were analyzed. The research indicated that the solar energy could improve the low temperature performance of air source heat pump,relieving frosting problem of air source heat pump. In turn,air source heat pump could compensate for solar instability and discontinuity defects. Therefore,the combination of solar energy and air source heat pump can improve the reliability and energy-saving ability. Finally,the inadequacies of existing research are analyzed and some suggestions for future research are proposed.