吸收式热泵-太阳能联合供热系统性能影响因素研究

Study on the Factors Influencing the Performance of Heating System Combined Absorption Heat Pump with Solar Energy

为提高供热系统的供热能力,以吸收式热泵-太阳能联合供热系统为研究对象,通过分析联合供热系统原理并建立供热系统热力模型,对供热系统性能影响因素进行了分析。仿真结果表明,吸收式热泵-太阳能联合供热系统性能受多种干扰因素影响,包括聚光型集热器面积和流量、吸收式热泵容量和蓄热水箱容积。其中,增加聚光型集热面积和吸收式热泵容量,减小聚光型集热器流量和蓄热水箱容积,可有效降低平板集热器进口温度,提高平板集热器集热效率,使供热系统供热温度和供热量增加,进而提高供热系统供热能力。

For purpose of improving heating capacity of the heating system,the heating system combined absorption heat pump with solar energy was taken as the research object.Through analyzing principle of the combined heating system and establishing its thermal model,the factors affecting performance of the heating system were analyzed.The simulation results show that,many interference factors influencing the performance of the heating system combined absorption heat pump with solar energy,including both area and flow of the concentrating collector,the high capacity of the absorption heat pump and the volume of the heat storage tank.Of which,increasing the condensing heat collection area and absorption heat pump capacity,reducing the flow of the condensing heat collector and the volume of the heat storage tank can effectively reduce inlet temperature of the flat plate collector,improve heat collection efficiency of the flat plate collector,increase both heating temperature and heat supply volume of the heating system,and thus improve heating capacity of the heating system.