风速随高度变化对Low-E玻璃传热系数的影响  

The Influence on Low-E Glass of Wind Speed Changing with Building's Height

作　　者：杨田甜[1] 鲁大学 张若京[1] 王占山[3] 

机构地区：[1]同济大学航空航天与力学学院 [2]中国耀华玻璃集团公司 [3]同济大学物理系

出　　处：《建筑热能通风空调》2007年第2期78-82,共5页Building Energy & Environment

基　　金：国家自然科学基金项目(60544005)

摘　　要：本文主要研究不同高度的风速对不同朝向的高层建筑纯幕墙的玻璃传热系数U的影响。采用玻璃专用软件Window 5.0,分析了不同高度、不同方向的风对普通玻璃、单层Low-E玻璃和双层Low-E玻璃U值的影响。通过研究发现,随高度增加风速增大,U变大;建筑物迎风面和侧面U值随高度增大变化较快,背风面几乎没有什么变化。最后针对北京为迎接2008年奥运会将建造高度为249.9m的银泰中心,提出了玻璃幕墙的建设方案。The heat transfer factor U of the pure glass curtain wall in different direction is influenced by wind at different heights. Using the specialized software, Window 5.0, the influence of wind on heat transfer factor of the common glass, single Low-E glass and double Low-E glass is discussed when the wind came form different heights and different direction. The result is that wind speed is increasing with the height, which leads to the U factor increasing; the U factor of the building at windward and lateral direction increases rapidly, but U factor at leeward almost doesn＇t changes at all. At last, according to the 249.5 m-high Yintai Center Building which will be built to welcome the 2008 Beijing Olympic Games, construction suggestions of curtain glass wall are given.

关 键 词：LOW-E玻璃 风速 高度 风向 

分 类 号：TU111.195.4[建筑科学—建筑理论]