Experimental study on ground temperature change characteristics of ground-source heat-pump system running in summer

被引：0

作者：

Sun W. ^{[1
,2
]}

Zhou N. ^{[1
]}

Huang J. ^{[2
]}

Wang Y. ^{[2
]}

机构：

[1] College of Civil Engineering, Tongji University, Shanghai

[2] Shanghai Institute of Geological Engineering Exploration, Shanghai

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2016年 / 44卷 / 07期

关键词：

Coefficient of performance; Ground temperature; Ground-source heat-pump;

D O I：

10.11908/j.issn.0253-374x.2016.07.019

中图分类号：

学科分类号：

摘要：

Ground temperature and systematic parameters of running ground-source heat-pump system were collected from a laboratory in Tongji University, and the change laws of the parameters were analyzed to evaluate its effect on the system. The following conclusion can be drawn: the ground temperature rises 0.64℃ in 44 d, the range of temperature variation decreases with depths, and the temperature will be a relative constant when depth is deeper than 120 m. The ground temperature recovery rate is 0.14℃·100 d-1, and with the increasing of soil temperature, the temperature gap of inlet and outlet water will decrease 0.87℃ and the system performance rate and heat transfer efficiency will decline. © 2016, Editorial Department of Journal of Tongji University. All right reserved.

引用

页码：1101 / 1106

页数：5

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