地源热泵制热性能实验研究

Experimental Study on Heating Performance of Ground Source Heat Pump

采用实验的方法研究上海市松江区地源热泵机组制热性能．研究地源热泵机组的出水温度、负荷侧、地埋管侧水流量参数变化和制热性能变化规律．实验结果表明：在地源热泵机组制热工况启动过程中，平均制热量为17．1kw，制热性能系数（COP）平均值为4．27；3口90m地埋管井吸热量平均值为13．8kw，不同深度土壤温度降低了2．5～5℃．

The experimental method was employed to study the heating performance of the ground source heat pump in Songjiang District, Shanghai. Parameters variation were studied, including water temperature,water flows at load side and underground pipeline and heating performance. Experimental results show that during the startup process of ground source heat pump heating, the average heating capacity is 17.1 kW,the average heating coefficient of performance （COP） is 4.27. In heating operation mode, average heat absorption of three wells with 90 m depth is 13.8 kW and soil temperature can be reduced 2.5-5℃.