重庆某双层皮幕墙自然通风工况下的性能研究及构造优化  

Performance Study and Structural Optimization of a Double-Skin Facade under Natural Ventilation Condition in Chongqing

作　　者：代孟玮 曹锴 黄屹 杨奇志 王勇 Dai Mengwei;Cao Kai;Huang Yi;Yang Qizhi;Wang Yong(School of Civil Engineering,Chongqing University,Chongqing,400045;Chongqing Wushan Housing and Municipal and Rural Construction Commission,Chongqing,404799)

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]重庆市巫山县住房和城乡建设委员会,重庆404799

出　　处：《制冷与空调（四川）》2021年第5期631-639,共9页Refrigeration and Air Conditioning

摘　　要：双层皮玻璃幕墙是降低建筑能耗的一种有效技术措施。针对重庆某双层皮玻璃幕墙实际工程,对夏季自然通风工况下双层皮玻璃幕墙热通道内参数进行实测,获得了其速度场和温度场分布。以该工程为基础,建立了CFD数值模型,并与实测数据进行对比,其温度、速度误差5%左右。以该建筑构造模型为基础,改变模型中双层皮玻璃幕墙的幕墙间距,分析其参数变化对双层皮玻璃幕墙热工性能的影响,获得了该模型条件下的有效间距。该方法可为双层皮玻璃幕墙的构造优化提供参考。Double-skin facade is an effective technical measure to reduce building energy consumption.In this paper,the velocity field and temperature field of double-skin facade in thermal cavity under natural ventilation condition in summer are measured.On the basis of this project,the CFD numerical model is established and compared with the measured data.The error of temperature and velocity is about 5%.Based on the structural model,the effective space of double-skin facade under the condition of the model is obtained by changing the space of the cavity and analyzing the influence of the parameters on the thermal performance of the double-skin facade.This method can provide a reference for the structural optimization of double-skin facade.

关 键 词：双层皮玻璃幕墙 热通道间距 温度场 速度场 数值模拟 

分 类 号：TU111.4[建筑科学—建筑理论]