太阳能-地源热泵串联复合式系统的性能研究

对于总热负荷与总冷负荷不平衡的建筑,单独采用土壤源热泵系统供暖或供冷时,系统运行末期土壤温度发生很大的变化,降低了系统的运行性能。针对此类建筑,搭建太阳能-土壤源串联复合式热泵系统,从集热器单位面积流量、存储水箱体积的影响因素出发,研究供暖期热泵机组蒸发器侧进水温度、系统运行性能和能耗的变化情况,为常规土壤源热泵系统引起的土壤热平衡问题提出解决方案,为今后的实际工程设计及应用提供参考依据。

Performance on Solar-Assisted Ground-Source Heat Pump System

In the heating load dominated area of cold winter zone, the heat taken and released to the soil is unbalanced, when the ground source heat pump (GSHP) system is responsible for all air conditioning loads in most cases. Then it results that the soil temperature would change greatly, and the performance of the system would bring down. The paper builds the ground source heat pump system and the solar-assisted ground-source heat pump system, and then analyzes the different inlet water temperature of heat pump, the different performance and energy consumption according to different collector unit area and tank volume parameters. It is important to provide reference to build the integrated heat pump system and solution for the soil thermal balance.