Effect of Energy Diaphragm Wall on the Coupled Heat and Moisture Transfer Behavior of Interior Side Walls

ZHOU Xu; WU Lang; CAO Xiaoling; LENG Ziyu; YUAN Yanping

doi:10.13409/j.cnki.jdpme.20230927013

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Effect of Energy Diaphragm Wall on the Coupled Heat and Moisture Transfer Behavior of Interior Side Walls

更新时间：2024-09-07

- Effect of Energy Diaphragm Wall on the Coupled Heat and Moisture Transfer Behavior of Interior Side Walls
- Journal of Disaster Prevention and Mitigation Engineering Vol. 44, Issue 4, Pages: 893-900(2024)
- 作者机构：
  
  西南交通大学机械工程学院，四川成都，610031
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20230927013
  CLC： TU83
- Received：27 September 2023，
  
  Revised：2023-12-26，
  
  Published：30 August 2024
- 稿件说明：
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周旭,吴浪,曹晓玲等.能源连续墙对室内侧壁面热湿耦合传递行为的影响[J].防灾减灾工程学报,2024,44(04):893-900.

ZHOU Xu,WU Lang,CAO Xiaoling,et al.Effect of Energy Diaphragm Wall on the Coupled Heat and Moisture Transfer Behavior of Interior Side Walls[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):893-900.
周旭,吴浪,曹晓玲等.能源连续墙对室内侧壁面热湿耦合传递行为的影响[J].防灾减灾工程学报,2024,44(04):893-900. DOI： 10.13409/j.cnki.jdpme.20230927013.

ZHOU Xu,WU Lang,CAO Xiaoling,et al.Effect of Energy Diaphragm Wall on the Coupled Heat and Moisture Transfer Behavior of Interior Side Walls[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(04):893-900. DOI： 10.13409/j.cnki.jdpme.20230927013.

摘要

目前国内外针对能源连续墙的研究主要集热交换性能，鲜有研究关注其对邻近地下建筑热湿环境的影响。本文通过建立热湿耦合传递三维数值模型，研究了能源连续墙对相邻地下室墙体壁面热湿状态和与室内环境热湿交互通量的影响。研究结果表明，能源连续墙的运行明显改变了室内侧壁面的热湿流方向和热湿流密度大小；与纯传热结果相比，虽然传湿过程对壁面温度的影响小于0.2 ℃，但是这部分差异会造成显热热流密度预测偏差超过10%；不计潜热热流会造成对地下室内热负荷的低估超过2.4%；绝缘层的隔热防潮作用能够阻碍流向室内的热量和湿汽。

Abstract

Current research on Energy Diaphragm Walls (EDWs)

both domestically and internationally

mainly focuses on heat exchange performance

with few studies addressing their impact on the thermal and moisture environment of adjacent underground buildings. This paper investigates the influence of EDWs on the heat and moisture conditions of adjacent basement walls and the heat and moisture flux interaction with the indoor environment by establishing a 3D numerical model of coupled heat and moisture transfer. Results showed that the operation of the EDWs significantly changed the direction and intensity of heat and moisture flow on the interior side walls. Although the impact of the moisture transfer process on wall temperature change was less than 0.2℃ compared to pure heat transfer results

this small discrepancy can cause a prediction deviation of sensible heat flux density by more than 10%. Ignoring the latent heat flux can result in an underestimation of the total thermal load of the underground space by more than 2.4%. Moreover

the insulation layer effectively blocks the flux of heat and moisture into the indoor environment.

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