土壤源热泵U型管非饱和土壤温度场分析

英文篇名：Temperature Field Analysis of Not-Saturated Porous Medium around Ground-coupled Heat Pump
中文刊名：华北水利水电学院学报
英文刊名：Journal of North China Institute of Water Conservancy and Hydroelectric Power
作者：王梅杰 ; 陈贵芳 ; 杨崇豪
英文作者：WANG Mei-jie1 ; CHEN Gui-fang2 ; YANG Chong-hao1(1.North China Institute of Water Conservancy and Hydroelectric Power ; Zhengzhou 450011 ; China ; 2.Coal Industry Jinan Design & Research Co. ; Ltd ; Jinan 250031 ; China)
中文关键词：U型竖埋管 ; 土壤分层 ; 非饱和多孔介质 ; ANSYS ; 温度场
英文关键词：U-pipe vertical heat exchanger ; different layers of ground ; not-saturated porous medium ; ANSYS ; temperature field
出版日期：2010-08-15
机构：华北水利水电学院;煤炭工业济南设计研究院有限公司;
年：2010
期：04
出版单位：华北水利水电学院学报

摘要

为了使U型竖埋管传热模型更接近实际,在U型管建模时,考虑了其实际形状.对土壤建模时,把土壤进行了分层处理,把土壤看作是固态、液态、气态并存的物质,推导了各传热环节的控制方程,比较了不同温度场各因素的变化引起温度场的变化趋势.结果表明,非饱和土壤温度场更接近实际情况.
A new model of U-pipe vertical heat exchanger is established in this paper.When model of U-tube established,its real shape is considered.While model of ground established,its property of solid,liquid and gas are all included,besides,ground is divided into three different layers.The control equations of heat transfer have been deduced out,and the trends caused by the change of the factors of different temperuture field is compared.Differrent temperature field are compared to analysis the effects of differrent conditions.

引文

[1]王钧,黄尚瑶,黄歌山,等.中国地温分布的基本特征[M].北京:地震出版社,1990.
    [2]Mei V C C J E.New approach for analysis of ground-coildesign for applied heat pump systems[J].ASHREAETransactions,1985,91(2):1216-1224.
    [3]贾力.高等传热学[M].广州:华南理工大学出版社,2001.
    [4]杨世铭,陶文铨.传热学(第三版)[M].北京:高等教育出版社,1998:267.
    [5]王金香.多孔介质土壤热渗耦合模型及埋管周围土壤温度场数值模拟研究[D].大连:大连理工大学,2006.
    [6]John W Lund.Direct heat utilization of geothermal re-sources[J].Renewable Energy,1997,10:403-408.