关于地埋管换热器热响应试验的讨论

Comments on the Thermal Response Test of the Ground Heat Exchangers

本文综述了地埋管地热换热器热响应试验技术的发展和现状,介绍了美国相关的标准和技术要求。对我国现存的两种热响应试验方法,即"恒热流法"和"恒温法",进行了评价,指出:对于大中型的地埋管换热器项目,应当现场测试岩土体的热物性,并按规范的要求进行地埋管换热器的设计计算。

The technology of the thermal response test for ground heat exchangers was reviewed, and relevant American regulations were cited in this paper. Two thermal response test methods existing concurrently in China were commented. The study concludes that it is the appropriate approach to design the ground-coupled heat pump system through in-situ measurement of the thermal properties of the ground formations, and to size the ground loop according to heat transfer models recommended by the national standard.