A method and case study of thermal response test with unstable heat rate

被引：34

作者：

Hu, Pingfang ^{[1
]}

Meng, Qingfeng ^{[1
]}

Sun, Qiming ^{[1
]}

Zhu, Na ^{[1
]}

Guan, Changsheng ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Peoples R China

[2] Wuhan Univ Technol, Sch Engn & Architecture, Wuhan 430074, Peoples R China

来源：

ENERGY AND BUILDINGS | 2012年 / 48卷

基金：

中国国家自然科学基金;

关键词：

Variable-rate heat; Ground thermal properties; Unsteady state method; IN-SITU DETERMINATION; PERFORMANCE; EXCHANGERS; CONDUCTIVITY;

D O I：

10.1016/j.enbuild.2012.01.036

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper proposed a new method based on modified composite model in the thermal response test (TRT) in the variable heat rate case study. The new method considered the unsteady-state heat transfer in the borehole instead of the line-source model assumption. A Matlab program was compiled which can perform inversion calculation to obtain the ground thermal properties. The superposition principle was used to process the variable-rate problem. This new method was applied to two thermal response tests. The simulation value based on the method shows a good agreement with the measurement data of water temperature. The proposed method would save the time and reduce the cost of TRT when power fluctuation or failure occurs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：199 / 205

页数：7

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