摘要
本文介绍了几种最常见的地热换热器形式:单U型、双U型、套管式。通过准三维传热模型分析了钻孔内的传热过程,比较了这几种地热换热器形式的优缺点。并进一步通过经济性分析,比较了这几种地热换热器形式的初投资,为它们以后在工程中应用提供了参考。
Giving a presentation of some more common types of ground heat exchangers,such as single U-tube,double U-tube,concentric tube,Pseudo 3D model was developed to analyse the heat transfer in the borehole,The advantages and disadvantages of different types of ground heat exchangers is compared. Also,comparing the cost of them by economic analysis,it is useful to the project application.
关键词
地热换热器
传热过程
优缺点
经济性分析
Ground heat exchangers, Heat transfer, Advantages an disadvantages, Economic analysis
