水平埋地管换热器夏季瞬态工况的实验与数值模拟

Experimental and Numerical Simulation of Horizontal Ground Coil Heat Exchanger in Cooling Mode

结合水平埋地换热器夏季换热工况的一组测试数据，验证了水平埋管换热器分析程序（ＨＧＨＡ）的可靠性．并利用该程序对影响埋地换热器夏季瞬态换热工况的一些参数进行了分析，并对模拟结果进行了物理意义上的讨论．

Based on the mathematical model presented by V.C.Mei,a program,HGHA,which can be used to analyze the heat transfer characteristics of horizontal ground coil heat exchanger in the cooling mode is validated by the comparison with the measured short term data.And then,some factors like the soil conductivity,coil size and coil pipe conductivty that influence the temperature of the ground coil outlet water are analyzed.Those results are also elaborated in the view of basic heat transfer theory.