Heat transfer analysis of pile geothermal heat exchangers with spiral coils

被引：185

作者：

Cui, Ping ^{[1
,2
,3
]}

Li, Xin ^{[3
]}

Man, Yi ^{[3
]}

Fang, Zhaohong ^{[2
]}

机构：

[1] Minist Educ, Key Lab Renewable Energy Utilizat Technol Bldg, Jinan, Peoples R China

[2] Shandong Jianzhu Univ, Sch Thermal Energy Engn, Jinan, Peoples R China

[3] Shandong Key Lab Bldg Energy Saving Tech, Jinan, Peoples R China

来源：

APPLIED ENERGY | 2011年 / 88卷 / 11期

关键词：

Ground-coupled heat pump; Pile geothermal heat exchanger; Heat transfer; Spiral coil; Ring-coil source; SYSTEM;

D O I：

10.1016/j.apenergy.2011.03.045

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：

This paper investigates the transient heat conduction around the buried spiral coils which could be applied in the ground-coupled heat pump systems with the pile foundation as a geothermal heat exchanger. A transient ring-coil heat source model is developed, and the explicit analytical solutions for the temperature response are derived by means of the Green's function theory and the image method. The influences of the coil pitch and locations are evaluated and discussed according to the solutions. In addition, comparisons between the ring-coil and cylindrical source models give that the improved finite ring-coil source model can accurately describe the heat transfer process of the pile geothermal heat exchanger (PGHE). The analytical solutions may provide a desirable and better tool for the PGHE simulation/design. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4113 / 4119

页数：7

共 16 条

[1]

[Anonymous], 1985, DESIGN DATA MANUAL C

[2]

Beck J.V., 1992, Heat Conduction Using Green's Function

[3]

Eskilson P., 1987, THERMAL ANAL HEAT EX

[4] Field performance of an energy pile system for space heating [J].

Hamada, Yasuhiro ;

Saitoh, Hisashi ;

Nakamura, Makoto ;

Kubota, Hideki ;

Ochifuji, Kiyoshi .

ENERGY AND BUILDINGS, 2007, 39 (05) :517-524

[5]

Jia L., 2008, ADV HEAT TRANSFER

[6]

Kavanaugh S.P., 1985, Simulation and Experimental Verification of Vertical Ground- Coupled Heat Pump Systems

[7] Experimental and numerical investigations of the behaviour of a heat exchanger pile [J].

Laloui, Lyesse ;

Nuth, Mathieu ;

Vulliet, Laurent .

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2006, 30 (08) :763-781

[8] A new model and analytical solutions for borehole and pile ground heat exchangers [J].

Man, Yi ;

Yang, Hongxing ;

Diao, Nairen ;

Liu, Junhong ;

Fang, Zhaohong .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (13-14) :2593-2601

[9] STUDY ON HEAT EXCHANGED IN SOIL BY CIRCULATING WATER IN A STEEL PILE [J].

MORINO, K ;

OKA, T .

ENERGY AND BUILDINGS, 1994, 21 (01) :65-78

[10]

Pahud D., 1996, DUCT GROUND HEAT STO

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