土壤源热泵地埋管换热器传热机制研究

Study on Heat Transfer Mechanism of Buried Tube Heat Exchanger for Ground Source Heat Pump

分析了土壤源热泵地埋管换热器与土壤的传热机制,建立了导热机制与渗流传热机制下的地埋管传热模型。在导热与渗流传热机制下,模拟了制冷工况下4×4排列群井的温度分布,提出了群井布置的优化方法。

The heat transfer mechanism between the buried tube heat exchanger for ground source heat pump and the soil is analyzed. The heat transfer models of the buried tube under the heat conduction mechanism and the infiltration heat transfer mechanism are established. Under the above mentioned two mechanisms, the temperature distribution of a 4 × 4 multi-boreholes array under refrigeration condition is simulated, and the optimal arrangement of muhi-boreholes is put forward.