能源连续墙对室内侧壁面热湿耦合传递行为的影响  

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

作　　者：周旭 吴浪 曹晓玲[1] 冷子瑜 袁艳平[1] ZHOU Xu;WU Lang;CAO Xiaoing;LENG Ziyu;YUAN Yanping(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《防灾减灾工程学报》2024年第4期893-900,共8页Journal of Disaster Prevention and Mitigation Engineering

基　　金：四川省科技计划项目(2021YFG0120)资助。

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。Current research on Energy Diaphragm Walls(EDWs),both domestically and international-ly,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 influ-ence of EDWs on the heat and moisture conditions of adjacent basement walls and the heat and mois-ture 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 direc-tion and intensity of heat and moisture flow on the interior side walls.Although the impact of the mois-ture transfer process on wall temperature change was less than 0.2℃compared to pure heat transfer re-sults,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 un-derground space by more than 2.4%.Moreover,the insulation layer effectively blocks the flux of heat and moisture into the indoor environment.

关 键 词：能源连续墙 热湿耦合传递 地下空间 壁面热湿流 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]