【作者】 郑平； 吴明； 张国忠； 缪娟；

【Author】 Zheng Ping~(1,2) Wu Ming Zhang Guo-zhong Miao Juan~(1,2) (1.College of Architecture &Storage Engineering ofChina University of Petroleum,Shandong,Dongying,257061) (2.College of Architecture & Storage Engineering of Liaoning Shihua University,Liaoning,Fushun,113001)

【机构】 中国石油大学(华东)储运与建筑工程学院； 辽宁石油化工大学储运与建筑工程学院；

【摘要】 根据传热学、渗流理论提出了寒区带相变问题土壤源热泵的数学模型及其控制方程,利用有限单元法对大庆油田某土壤源热泵冬季供暖工况下的传热问题进行了仿真计算和分析。通过与不考虑土壤冻结情况的结果对比,表明土壤源热泵在寒区运行过程中,土壤冻结时产生的相变潜热会影响土壤的传热效果。土壤冻结会使土壤导热系数增大,有利于冬季供暖效果和设备运行效率的提高。更多还原

【Abstract】 According to heat transfer and filtration theory,mathematical model and its control equation of ground-source heat pump in cold climate were put forward.The heating situation was simulated by using finite element method.By comparison with and without consideration of soil freezing,the results showed the phase change latent heat could reflect the heat transfer effect.Soil freezing can increase thermal conductivity,which is beneficial to the heating effect and pump efficiency.更多还原