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应用数值模拟方法对地下水源热泵采能条件下地温场的演化及含水层贮能效率进行了研究。以某水源热泵工程为例,通过对渗流影响区的温度输运方程、地下水渗流方程的耦合求解,得出了温度场分布,分析了不同工况下的地下含水层温度变化,并计算了含水层的热存储效率。结果表明:温度场中等温线的变化趋势可反映出贮能含水层因贮能水抽取和回灌温度不同导致的温度场的变化。
The evolution of ground temperature field and energy storage efficiency of aquifer under the condition of underground water source heat pump were studied by numerical simulation method. Taking a water source heat pump project as an example, the temperature field distribution is obtained through the coupling of the temperature transport equation and groundwater seepage equation in the seepage affected area, and the variation of the underground aquifer temperature under different operating conditions is analyzed. Layer thermal storage efficiency. The results show that the change trend of isotherms in temperature field can reflect the change of temperature field caused by different storage and reclamation temperatures of stored energy aquifer.