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介绍了垂直 U形埋地换热器土壤热源热泵系统的综合性能实验装置及冬季启动工况的试验结果。结果表明 :上海地区土壤热源热泵系统冬季启动阶段约需 4 h,稳定时单位埋管长度取热量约为 3 0 W/m,热泵供热性能系数 COPh为 3 .0～ 3 .3 ,与空气源热泵相比 ,土壤热源热泵可以节电 1 6%～ 2 4 % ,是一项有效的节能技术。
This paper introduces the comprehensive performance experimental device of vertical heat-exchange U-shaped soil heat source heat pump system and the test results in winter. The results show that the soil heat source heat pump system in Shanghai takes about 4 hours during the winter start-up phase, and the heat input per unit tube length is about 30 W / m at steady state. The coefficient of performance of heat pump COPh is 3.0-3.3, Compared with the source heat pump, the soil heat source heat pump can save 16% ~ 24%, which is an effective energy saving technology.