土壤耦合热泵系统垂直埋管换热器性能影响因素的模拟分析  

Simulation and analysis of the factors influencing performance of vertical geothermal heat exchanger in ground-coupled heat pump system

作　　者：田兴旺[1,2] 徐士鸣[1] 张丽[1,2] 

机构地区：[1]大连理工大学 [2]大连水产学院

出　　处：《制冷与空调》2009年第4期14-19,共6页Refrigeration and Air-Conditioning

基　　金：国家自然科学基金资助项目(50576006)

摘　　要：采用对钻孔内、外2个传热空间分别讨论的传热分析方法,建立土壤耦合热泵系统垂直埋管换热器传热的数学模型。模拟分析冬季换热过程中埋管周围土壤温度的变化,得出取热工况下地埋管换热器换热性能的影响因素。模拟结果将有助于提高热泵系统的循环经济性能。Exploiting a heat transfer analysis method, which discusses both inner and outer space of the borehole in the ground, establishes heat transfer mathematical model for vertical geothermal heat exchanger in ground-coupled heat pump system. Analyzes and simulates the variation of the soil temperature around geothermal heat exchanger, and presents some factors influencing the performance of the geothermal heat exchanger. Simulation results are very helpful to improve the economic performance of the heat pump system.

关 键 词：土壤耦合热泵系统 地埋管换热器 模拟分析 影响因素 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]