土壤-海水源热泵供暖实验研究
Experimental study on heat supply of soil-seawater-source heat pump
摘要：
搭建了土壤-海水源现场实验台，进行了供暖实验。结果表明，沙层土壤温度越高，则机组进水温度也越高，单位管长换热量也就越大，热泵系统COP也就越大；实验工况下，单位管长换热量平均值为38.2 W/m，热泵系统COP平均值为1.8；浅层海底沙层土壤温度恢复能力较强，盘管换热器对周围土壤热环境影响较小。
Abstract：
Sets up a field test platform of soil-seawater-source heat pump and performs heating experiment. The experimental results show that the higher the sand soil temperature is, the more the inlet water temperature of heat pump is, which results in larger heat exchanger capacity per unit length and higher COP of the heat pump system. Under the experimental conditions, the average value of heat exchanger capacity per unit length is 38.2 W/m, and the average value of COP is 1.8. The heat exchanger of soil-seawater-source heat pump system has little effect on the soil thermal environment due to stronger temperature restoration ability of shallow layer seabed soil.
Keywords:coil heat exchanger, seawater-source heat pump, ground-source heat pump, soil temperature, effect on thermal environment, heating