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[期刊论文]

Effect of ventilation on the thermal performance of tunnel lining GHEs

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作者:

Zhang, Guozhu (Zhang, Guozhu.) | Xia, Caichu (Xia, Caichu.) | Zhao, Xu (Zhao, Xu.) | 展开

收录:

EI Scopus SCIE

摘要:

A tunnel lining ground heat exchanger (GHE) uses surrounding rock as heat source and transfers heat through absorber pipes buried in the tunnel lining. In order to evaluate the effect of ventilation on the thermal performance of tunnel lining GHEs, thermal response field tests considering ventilation were performed in Linchang tunnel, and a 3D numerical model of tunnel lining GHEs was built and verified with the field monitoring data. The study results show that (i) the ventilation has a significant influence on the temperature field of surrounding rock; (ii) the heat exchange rate rises exponentially as convective heat transfer coefficient (CHTC) increases, and it increases significantly with the decreasing thickness of secondary lining; (iii) the heat exchange rate presents a linear variation as the inlet temperature increases, the growth gradient of the heat exchange rate rises exponentially as the CHTC increases and decreases gradually with the running time increase. (C) 2015 Elsevier Ltd. All rights reserved.

关键词:

Thermal response test Thermal performance Tunnel lining GHEs Ventilation Geothermal energy

作者机构:

  • [ 1 ] [Zhang, Guozhu]Southeast Univ, Inst Geotech Engn, Nanjing 210096, Jiangsu, Peoples R China
  • [ 2 ] [Zhang, Guozhu]Southeast Univ, Jiangsu Key Lab Urban Underground Engn & Environm, Nanjing 210096, Jiangsu, Peoples R China
  • [ 3 ] [Xia, Caichu]Tongji Univ, Minist Educ, Key Lab Geotech & Underground Engn, Shanghai 200092, Peoples R China
  • [ 4 ] [Zhou, Shuwei]Tongji Univ, Minist Educ, Key Lab Geotech & Underground Engn, Shanghai 200092, Peoples R China
  • [ 5 ] [Zhao, Xu]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhang, Guozhu]Southeast Univ, Inst Geotech Engn, Nanjing 210096, Jiangsu, Peoples R China

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来源 :

APPLIED THERMAL ENGINEERING

ISSN: 1359-4311

年份: 2016

卷: 93

页码: 416-424

6 . 4 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:166

中科院分区:1

被引次数:

WoS核心集被引频次: 34

SCOPUS被引频次: 39

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