Numerical Simulation of the Heat Transfer in an
Earth-air Heat Exchange System

Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (11): 24-27.

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Numerical Simulation of the Heat Transfer in an Earth-air Heat Exchange System

Wu Hu-i jun¹ Zhu Dong-sheng¹ Sun Jia-long²

1．Key Laboratory of Enhanced Heat Transfer ＆Energy Conservation of the Ministry of Education South China Univ．of Tech．Guangzhou510640GuangdongChina； 2．Scientific Research InstitutePear River Water Resources CommissionGuangzhou510611GuangdongChina

Received:2004-02-04 Online:2004-11-20 Published:2015-09-08
Contact: 吴会军（1978－）男博士生主要从事传热强化与节能、吸附技术和CFD模拟的研究。 E-mail:wuhuijun＠tsinghua.org.cn
About author:吴会军（1978－）男博士生主要从事传热强化与节能、吸附技术和CFD模拟的研究。

Abstract

Abstract: The outlet temperature and heat transfer performance of an earth-air heat exchange system were numerically simulated by the superposition of natural ground temperature field and the air cooling effect．The influences of pipe depthlength and diameter on the outlet temperature of the exchanger were also studied．It is concluded by analysis that the outlet temperature of the heat exchanger changes periodically with the periodical change of pipe inlet temperatureand thatwith the increase in the pipe depth and lengththe outlet temperature and its variation degree of the exchanger decrease．The same phenomenon is obtained from the pipe with the decrease in pipe diameter．At the same timethe cooling performance of the earth-air system increases.

Key words: earth-air heat exchange system, heat transfer, numerical simulation, energy conservation

CLC Number:

TK512＋．4

Wu Hu-i jun Zhu Dong-sheng Sun Jia-long. Numerical Simulation of the Heat Transfer in an Earth-air Heat Exchange System[J]. Journal of South China University of Technology(Natural Science Edition), 2004, 32(11): 24-27.

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Numerical Simulation of the Heat Transfer in an Earth-air Heat Exchange System

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