文档介绍：土壤耦合热泵系统的热响应实验方法研究

余龙余延顺

(南京理工大学能源与动力工程学院,江苏南京 210094)

摘要土壤的平均导热系数与热阻是影响地下埋管换热器传热性能及土壤耦合热泵系统节能性与经
济性的重要因素。利用线热源理论,通过地源热泵的工作试验过程,得到系统进出口水温等参数,并
通过最小二乘法对所得数据进行拟合,得到地埋管换热器钻孔的导热系数及土壤热物性参数,测试结
论对于指导土壤热交换器设计与施工具有一定的参考价值。
关键词地源热泵热响应测试土壤热交换器

A RESEARCH BASED ON THERMAL RESPONSE METHOD OF THE
GROUND SOURCE HEAT PUMP

Yu Long Yu Yanshun
(School of Energy and Power Engineering,Nanjing university of science and technology,Nanjing 210094)

Abstract The average thermal conductivity coefficient of soil and thermal resisitence are the key factors
that affect the heat transfer performance of underground heat exchanger,the capability of energy-saving and
economical on the theory of line heat source,we get parameters including water temperature
of inlet and outlet,through the experiment,and make function fitting with the data so as to work out the
thermal conductivity coefficient and some other thermal parameters of soil,which can be consulted to design
and apply underground heat exchanger.
Keywords Ground source heat pump Heat response test Underground heat exchanger

0 引言供热又可制冷的高效节能空调系统。地源热泵
通过
能源和环保是人类生存和发展的两大主题,是输入少量的高品位能源(如电能),实现低温
全球关注的问题。建筑节能是贯彻可持续发展战略位热能向高温位转移。较深的地层中在未受干扰的
[1]
的重要组成部分,也是今后建筑技术发展的重点。情况下常年保持恒定的温度,地能分别在冬季作为
建筑能耗以供热采暖和空调能耗为主,因此建筑节热泵供暖的热源和夏季空调的冷源。与传统(电、
能的重点应放在采暖和降温能耗上。我国的能源结燃料)供热系