北京地区某办公楼模型外遮阳节能分析  

Analysis on External Sun-shading Energy Efficiency of an Office Building in Beijing

作　　者：刘甜甜[1] 孙诗兵[1] 田英良[1] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124

出　　处：《建筑科学》2010年第2期84-87,共4页Building Science

摘　　要：外窗的能耗在现代建筑中占有相当大的比重,遮阳是减少外窗太阳辐射所引起的空调负荷的有效措施。本文首先综合介绍了市场上的外遮阳产品;而后使用清华大学开发的建筑能耗模拟软件DeST-c,模拟分析了外窗综合遮阳系数对建筑物不同朝向能耗的影响,计算结果表明南向遮阳系数的改变对能耗的影响最大,且活动式遮阳的效果远好于固定式遮阳;最后模拟计算了水平机翼型遮阳板的宽度对建筑能耗的影响,得出了各朝向合适的板宽。Energy consumption of external window accounts for a great proportion in the modern buildings. Sun-shading is an effective measure to reduce the cooling energy consumption caused by solar radiation. In this paper, the external sun-shading product on the market was firstly introduced. And then,by using the building energy consumption simulation software of DeST-c, the influences of integral shading coefficient of external window on building energy consumption in different orientations were simulated. The results demonstrated that the change of shading coefficient of the building facing south had the strongest effect on energy consumption. In addition, the movable sun-shading was much more effective than the fixed one. At last, energy consumption affected by the width of horizontal wing penal was analyzed to gain the appropriate width of the penal in different orientations.

关 键 词：DeST—c 外窗遮阳系数 水平机翼型遮阳板宽 建筑能耗 

分 类 号：TU111.41[建筑科学—建筑理论] TU243