Study on Change Regularity of Air Temperature Underground Tunnel Based on Intermittent Operating of Heat Pump

In this paper, based on the analysis of strata soil temperature variation, the DeST software is used to simulate changes of outdoor air parameters under typical meteorological year in Jinan. One-dimensional unsteady state soil air heat transfer model is regarded as the research object, this paper th...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 90-93; pp. 1671 - 1674
Main Authors Li, Yong An, Gao, Ya Nan, Yang, Zong Jin, Liu, Xue Lai
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.09.2011
Subjects
Tunnel Air Temperature
Intermittent Operating
Precool and Preheat
Soil Temperature
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Summary:In this paper, based on the analysis of strata soil temperature variation, the DeST software is used to simulate changes of outdoor air parameters under typical meteorological year in Jinan. One-dimensional unsteady state soil air heat transfer model is regarded as the research object, this paper theoretically studies export air temperature change rules for the whole year under tunnel intermittent running condition. The results show that the tunnel plays a preheating role for outdoor air in winter and the cold role in summer, which provides a good cold、heat source conditions for the application of air source system based on the tunnel wind, especially the most hot and cold day throughout the year, the system has a remarkable effect.
Bibliography:Selected, peer reviewed papers from the 2011 International Conference on Civil Engineering and Transportation, (ICCET 2011), 14-16 October, 2011, Jinan, China
ISBN:3037852429
9783037852422
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.90-93.1671