异井循环地源热泵系统地下换热特性研究  

Study on the Characteristic of Underground Heat Exchange of Water Source Heat Pump System of Different Wells

作　　者：周小珠[1,2] 张于峰[1] 王洪磊[1] 陈成敏[1] 

机构地区：[1]天津大学,天津300072 [2]钦州学院,广西钦州535000

出　　处：《流体机械》2010年第8期53-56,17,共5页Fluid Machinery

基　　金：国家十一五科技支撑计划项目(2006BAJ04B04);(2008BAJ08B12-02)

摘　　要：建立异井循环地源热泵系统地下换热数学模型,采用有限差分法求解,对回灌井水及其周围土壤换热特性进行了数值计算和模拟分析,得出回灌井与土壤间的热影响半径至少为2m;同时对取水井井水温度变化进行现场运行试验研究,其结果表明在热泵运行期间,取水井水温相对稳定,即为初始温度。The thesis establishes mathematical model of different well circulation heat pump system of underground heat transfer,adopt finite difference method to get the solution,get numerical calculus and simulation minute with recharge well water and the heat transfer characteristic of periphery soil.The result is as follow： the heat transfer radius of influence between recharge well and soil is at least 2 meters.Meanwhile,the change of well water temperature is experimentally studied,the results are as follows： during the running of the heat pump,pumping well water temperature is relatively stable,which is equal to the initial temperature.

关 键 词：异井循环水源热泵 换热特性 数学模型 试验数据 数值模拟分析 

分 类 号：TB65[一般工业技术—制冷工程]