采用不同方式的地埋管换热器热响应测试——以中新天津生态城公屋展示中心项目为例  

Thermal response test on underground pipe heat exchanger by different ways——taking public housing project exhibition center in Sino-Singapore Tianjin Eco-city as an example

作　　者：刘九龙[1] 陈效文[1] 姚木生[1] 唐永香[1] 袁小飞[1] 李麟[1] 

机构地区：[1]天津地热勘查开发设计院,天津300250

出　　处：《世界地质》2012年第4期854-858,共5页World Geology

基　　金：地质大调查项目天津市浅层地热能资源调查(1212011013001)

摘　　要：利用两种热响应测试方式(恒热流法和恒温法)进行地埋管地源热泵换热试验,测试该地的土壤热物性参数。在概述了两种浅层岩土体热物性原位测试仪的原理、特点、测试方法及数据处理方法的基础上,分析比较了两种方法测量的参数,准确地计算出施工现场土壤的热物性参数。两种测试仪测量的热物性参数基本一致,同时热工况或冷工况试验所取得的参数差别不大。在20℃～30℃排热工况条件下,换热器为120 m双U类型时,排热量在25～60 W/m,在8℃取热工况条件下,取热量约30 W/m。热导率约1.5 W/m·℃,热扩散率约为0.46×10-6m3/s。We use two thermal response test methods（constant heat flux method and temperature method） for ground source heat pump ground heat exchanger pipe test,to test the ground soil thermal parameters.On the basis of over viewing two thermal properties tester principles,characteristics,test methods and data processing methods,we analyzed and compared thermal parameters between two measurings and calculated precisely soil thermal parameters of the construction site.The thermal parameters are basically the same,while hot or cold testing conditions are not very different from the parameters obtained.In the 20℃~30 ℃ emission heat working conditions,heat exchanger for the 120 m double U-type,emission heat quantum is at 25~60 W/m.In the 8 ℃ absorbing hot working conditions,absorbing hot quantum is about 30 W/m.Thermal conductivity is about 1.5 W/m·℃.Thermal diffusivity is about 0.46×10-6 m3 /s.

关 键 词：地埋管换热器 热响应测试 恒热流法和恒温法 热物性参数 

分 类 号：P314.3[天文地球—固体地球物理学]