摘要
利用数值模拟方法建立了地源热泵竖直U型埋管非稳态温度场的三维数学模型,并把U型埋管回水温度与建筑物负荷结合起来,首次建立了地源热泵系统动态模型。根据模型可以得到一个周期地源热泵间歇运行工况土壤的温度分布、每米换热量和热作用半径等参数。
The three dimensional mathematical model of vertical U-pipe in unsteady-state temperature field for ground source heat pump was established by using the method of numerical simulation.The dynamic model of ground source heat pump system was set up for the first time based on the combination of U-pipe return water temperature and building load.According to this model,such parameters as soil temperature distribution,heat transfer rate and influencing thermal radius can be derived for ground sources heat pump systems under intermittent operation condition.
出处
《工程建设》
2012年第1期5-9,47,共6页
Engineering Construction
基金
山东省教育厅科技项目(J09LE10)
关键词
地源热泵
数值模拟
U型埋管
间歇运行
ground source heat pump
numerical simulation
U-pipe
intermittent mode operation
