摘要
利用热响应原理,通过实验分析了两个工程案例的埋地换热器周围土壤的导热系数,并具体分析了热响应实验的测试周期与土壤的温度恢复周期;介绍了初始运行时间、钻井回填土类型、U型管内循环水的流速对土壤的导热系数的影响;进一步阐述串联形式与并联形式、双U型管与单U型管埋地换热器的传热性能。
With thermal response theory , the ground thermal conductivity of two GTE＇s sprojects , the period of the thermal response test and the temperature resume period of the ground were analyzed. It was introduced that the time of initialization running ,species of grout ,velocity of flow of water flowing in U-bend loops how to affect ground thermal conductivity. The heat transfer performance in series form and parallel connection form ,two U-bend loops and single U-bend loop GTE was expatiated.
出处
《流体机械》
CSCD
北大核心
2007年第8期51-56,8,共7页
Fluid Machinery
关键词
埋地换热器
热响应
传热性能
导热系数
ground thermal exchange
thermal response theory
the heat transfer performance
thermal conductivity
