Numerical simulation of the heat transfer in an earth-air heat exchange system

被引：0

作者：

Wu, Hui-Jun ^{[1
]}

Zhu, Dong-Sheng ^{[1
]}

Sun, Jia-Long ^{[2
]}

机构：

[1] Lab. of Enhanced Heat Transfer, South China Univ. of Technol., Guangzhou 510640, China

[2] Sci. Res. Inst., Pear River Water Resources Commn., Guangzhou 510611, China

来源：

Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2004年 / 32卷 / 11期

关键词：

Computer simulation - Energy conservation - Heat transfer - Numerical analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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 depth, length 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 temperature, and that, with the increase in the pipe depth and length, the 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 time, the cooling performance of the earth-air system increases.

引用

页码：24 / 27