2D thermal resistance of pile heat exchangers

被引：80

作者：

Loveridge, Fleur ^{[1
]}

Powrie, William ^{[1
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Southampton SO17 1BJ, Hants, England

来源：

GEOTHERMICS | 2014年 / 50卷

基金：

英国工程与自然科学研究理事会;

关键词：

Geothermal; Piled foundations; Ground energy; Thermal resistance; Ground heat exchangers; CONDUCTIVITY; PERFORMANCE;

D O I：

10.1016/j.geothermics.2013.09.015

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Structural foundation piles are being used increasingly as heat exchangers to provide renewable heat for new buildings. To design such energy systems a steady state is assumed within the pile, which is conventionally characterised by constant thermal resistance. However, there has been little research regarding pile resistance and there are few published case studies. Numerical modelling results are presented here to provide typical values of pile resistance, depending on the details of the heat exchange pipes. Analysis suggests large diameter piles may take several days to reach steady state; in these cases a transient design approach may be more appropriate. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：122 / 135

页数：14

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