Finite line-source model for borehole heat exchangers: effect of vertical temperature variations

被引：157

作者：

Bandos, Tatyana V. ^{[1
]}

Montero, Alvaro ^{[2
]}

Fernandez, Esther ^{[1
]}

Santander, Juan Luis G. ^{[1
]}

Maria Isidro, Jose ^{[1
]}

Perez, Jezabel ^{[1
]}

Fernandez de Cordoba, Pedro J. ^{[1
]}

Urchueguia, Javier F. ^{[2
]}

机构：

[1] Univ Politecn Valencia, Inst Univ Matemat Pura & Aplicada, Valencia 46022, Spain

[2] Univ Politecn Valencia, Inst Ingn Energet, Valencia 46022, Spain

来源：

GEOTHERMICS | 2009年 / 38卷 / 02期

关键词：

Geothermal; Borehole heat exchangers; Heat transfer; Thermal response test; Ground-coupled heat pumps; PUMP SYSTEM; PERFORMANCE; TESTS; TIME;

D O I：

10.1016/j.geothermics.2009.01.003

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：

A solution to the three-dimensional finite line-source (FLS) model for borehole heat exchangers (BHEs) that takes into account the prevailing geothermal gradient and allows arbitrary ground surface temperature changes is presented. Analytical expressions for the average ground temperature are derived by integrating the exact solution over the line-source depth. A self-consistent procedure to evaluate the in situ thermal response test (TRT) data is outlined. The effective thermal conductivity and the effective borehole thermal resistance can be determined by fitting the TRT data to the time-series expansion obtained for the average temperature. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：263 / 270

页数：8

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