夏热冬冷地区外墙遮阳对建筑热环境与空调能耗的影响

EFFECTS OF EXTERNAL WALL SHADING ON BUILDING'S THERMAL ENVIRONMENT AND AIR CONDITIONING ENERGY CONSUMPTION IN HOT SUMMER AND COLD WINTER AREA

介绍了夏热冬冷地区外墙遮阳在建筑中的实际应用,并从墙体受太阳辐射热影响的机理,阐述了外墙遮阳对室内热环境与建筑空调能耗的影响。以南京地区一栋典型居住建筑为例,使用清华大学开发的建筑能耗模拟软件DeST-h,模拟并分析了对于两种不同构造的外墙,分别通过采取外遮阳措施,减小外表面太阳辐射吸收系数对夏季室内热环境和空调能耗的影响程度,并用实验方法对模拟结果进行了辅证。

Presents the practical application of external wall shading in hot summer and cold winter area, and from the angle of wall by solar radiation heat-affected, explains the effects of external wall shading on building＇s thermal environment and air conditioning energy consumption. Taking a typical residential building in Nanjing zone as an example, with the help of the dynamic energy consumption simulating software DeST-h developed by Tsinghua University, this article simulates and analyses the coefficient of taking external wall shading measures to reduce the absorption of solar radiation of exterior surface on building＇s thermal environment and air conditioning energy consumption, for two different kinds of external wall structure, and proves simulation results by the experiments.