土壤耦合热泵系统模型试验台设计  

Design of Scale-model Experiment Platform for Ground-coupled Heat Pump System

作　　者：余延顺[1] 张少凡[1] 马娟[1] 杨柳[1] 

机构地区：[1]南京理工大学动力工程学院,江苏南京210094

出　　处：《南京理工大学学报》2010年第5期613-617,共5页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(50806034);江苏省"六大人才高峰"资助项目(07-A-015)

摘　　要：该文基于线热源理论建立了考虑地下水渗流的土壤耦合热泵地下埋管换热系统的传热模型,并利用传热相似理论对传热模型进行了相似转换,得出与原型试验相似的无量纲准则数,结果表明模型系统的试验时间与几何尺度之平方Cl2成正比。依相似准则设计和建立了土壤耦合热泵系统的模型试验台,实现了以较小的人力物力和较短的时间对土壤耦合热泵系统长周期运行特性的测试。The heat transfer model of the underground heat exchange about the groundwater flow is established based on the line heat source theory,and the dimensionless criterion numbers for similarity of the prototype and scale-model experiment are presented by similarity transformation.The results show that the test time is proportional to square of the length scale Cl2.Moreover,the scale-model experiment platform is built according to the similar criterion numbers,and the long-cycle operation performances of the ground-coupled heat pump system（GCHPs）can be tested by less human and material resources and shorter time through the scale-model experiment platform.

关 键 词：地下埋管换热器 传热 相似理论 模型试验台 土壤耦合热泵系统 区域适应性 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]