【摘要】 对竖埋螺旋埋管地热换热器建立了传热模型,分析了流量、土壤传热系数对热输出的影响,并计算了等效传热系数、竖埋螺旋埋管换热器对土壤温度场的影响情况。在理论计算的基础上,对一竖埋螺旋管地源热泵系统进行了实验研究,对比分析了理论计算值和实验测试值,并分析了热泵系统的性能。更多还原

【Abstract】 Based on a vertical spiral geothermal heat pump system (GHPS),this paper establishes a heat transfer model for vertical spiral heat exchangers and analyses the effect of flux on the inner fluid temperature also gain the influence of the soil conductivity on the heat output.The experiments have been taken on a small scale GHPS,compare the theoretical data with the experimental results to verify that validity of the heat transfer model.更多还原