Analytical model for heat transfer in an underground air tunnel

被引：134

作者：

Krarti, M

Kreider, JF

机构：

[1] Jt. Ctr. for Ener. Management (JCEM), University of Colorado, Campus Box 428, Boulder

来源：

ENERGY CONVERSION AND MANAGEMENT | 1996年 / 37卷 / 10期

关键词：

underground air tunnel; air temperature; soil temperature; cooling effect; parametric analysis;

D O I：

10.1016/0196-8904(95)00208-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A simplified analytical model is developed to determine the energy performance of an underground air tunnel. The model assumes that the air tunnel-ground system reaches periodic and quasi-steady state behavior after some days of operation. The model can predict the air temperature variation along the air tunnel for any hour of the day. It can also determine the daily mean and amplitude of the total cooling/heating effect of the tunnel. Parametric analysis is conducted to determine the effect of tunnel hydraulic diameter and air flow rate on the heat transfer between ground and air inside the tunnel. The model is validated against measured data. (C) 1996 Elsevier Science Ltd.

引用

页码：1561 / 1574

页数：14

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