外遮阳对建筑外窗传热系数的影响分析  

STUDY ON EXTERNAL SHADING ON HEAT TRANSFER COEFFICIENT OF BUILDING WINDOW

作　　者：李栋[1] 刘玉成[2] 薛康[1] 邢畅[1] 吴国忠[1] 

机构地区：[1]东北石油大学土木建筑工程学院 [2]中国人民解放军93383部队74分队

出　　处：《低温建筑技术》2010年第8期106-108,共3页Low Temperature Architecture Technology

基　　金：东北石油大学土木建筑工程学院青年科技发展基金

摘　　要：通过分析建筑外窗的外遮阳传热特点,建立带有外遮阳结构的建筑外窗多场(导热、自然对流和辐射)耦合传热模型,利用CFD软件对其传热过程进行模拟。研究结果表明无遮阳的建筑外窗温度场梯度分布变化非常剧烈,而外遮阳使其玻璃温度场梯度分布较均匀。The mathematics and physical model of heat transfer of window in multiple coupled fields （heat conduction,natural convection and radiation） were established, based on the heat transfer properties of window with external shading. The heat transfer characteristics of window with external shading were simulated using CFD software. The results show that the temperature gradient change violently in windows with no external shading, however, the temperature gradient change slightly in windows with external shading.

关 键 词：建筑外窗 外遮阳 自然对流 

分 类 号：TU111.19[建筑科学—建筑理论]