渗流作用下地源热泵系统跨季节土壤蓄热特性
Seasonal soil thermal storage in ground-source heat pump system with groundwater seepage
摘要：
建立了热渗耦合作用下的土壤传热数学模型。针对单U形地埋管地源热泵系统，分析了在不同地下水渗流速度和土壤热物性条件下，地下水渗流对土壤温度场的影响；针对管群地埋管地源热泵系统，进行了全年跨季节土壤蓄热、取热运行工况模拟，得到一个周期内不同工况结束时的土壤温度场分布。
关键词：渗流,地源热泵,土壤蓄热,温度场
Abstract：
Establishes a mathematical model of soil heat transfer under heat transfer and groundwater seepage. For the single U-tube ground-source heat pump system, analyses the influence of the groundwater seepage on the soil temperature field under the condition of different groundwater seepage velocities and soil thermo-physical properties. For the pipe-group ground-source heat pump system, simulates the annual operating conditions of seasonal soil thermal storage and release, and obtains the distribution of soil temperature field at the end of different operating conditions in a cycle.
Keywords:seepage,ground-sourceheatpump,soilthermalstorage,temperaturefield