地源热泵系统中竖井深度的确定方法  

DETERMINATION OF THE VERTICAL WELL DEPTH OF A GROUND SOURCE HEAT PUMP SYSTEM

作　　者：范爱武[1] 刘伟[1] 王崇琦[1] 

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074

出　　处：《太阳能学报》2004年第5期695-698,共4页Acta Energiae Solaris Sinica

基　　金：教育部博士点专项基金项目(No 2000048731)

摘　　要：应用半无限大物体的热传导方程,求得了土壤日平均温度随时间和空间的变化规律。基于对地源热泵系统中竖井现场的地质勘探数据,计算出不同土层的热物性参数。最后根据对竖井现场地表温度连续一年的观测数据,得到了地表日平均温度的年波幅,并计算得出不同深度处土壤日平均温度的年波幅,据此确定了地源热泵系统中竖井的合理深度。By applying the heat conduction equation for semi-infinite substances to the soil, the variation regularity of daily mean soil temperature with respect to space and time was obtained. The thermal properties of the soil around the vertical well, which were critical in the predicting of soil temperature distribution, were calculated on the basis of geological survey data. The geological survey also showed that the soil around the vertical well could be divided into three layers with different thermal properties. The annual amplitudes of the daily mean soil temperatures at different depth were gained according to a whole year measurement of the ground temperature, by which the reasonable vertical well depth of the ground source heat pump system was determined.

关 键 词：地源热泵 竖井深度 土壤温度 年波幅 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TU831[动力工程及工程热物理—热能工程]