带有蓄热装置的直膨式太阳能热泵系统性能分析

Analysis on the Direct Expansion Solar Assisted Heat Pump System with a Heat Storage Device

为解决直膨式太阳能热泵系统受太阳辐射波动缺乏稳定性的问题,提出了一种带有相变蓄热装置的直膨式太阳能热泵热水系统。以青岛地区天气状况为例,对太阳能集热器出口制冷剂的温度变化进行了理论分析,验证了系统的可行性。通过对该系统进行经济性分析,发现其运行费用低,节能环保。

To solve the stability issue of direct expansion solar assisted heat pump systems affected by fluctuations in solar radiation,a direct expansion solar heat pump system with phase-change thermal heat storage device was presented.By taking weather conditions in Qingdao as an example,refrigerant temperature on the solar collector outlet was theoretically analyzed to verify the feasibility of the system.Economic analysis of this system was made by comparing with different water heaters,and calculations showed the low operating cost,energy-saving,and environment-protecting features of this system.