玻璃幕墙建筑中入射太阳辐射逃逸性计算  

Calculation on the escape of incident solar radiation in glass curtain wall buildings

作　　者：陆舜瑶 黄晓庆[1] 陈涛 王正之 LU Shunyao;HUANG Xiaoqing;CHEN Tao;WANG Zhengzhi(School of Energy and Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院能源与动力工程学院,江苏南京211167

出　　处：《新能源科技》2024年第5期25-30,共6页New Energy Science and Technology

基　　金：南京工程学院引进人才科研启动基金项目(YKJ201963)。

摘　　要：太阳发出的辐射能量由于地表建筑物的吸收、再辐射等过程,部分能量未能有效捕获而逃逸到空间中。传统建筑中假设入射进入室内太阳辐射不能再次通过窗户逃逸,但这一假设不适用于玻璃幕墙建筑。为了计算太阳辐射逃逸率,文章基于辐射度照射法建立了太阳辐射模型,使用Matlab软件进行了模拟计算,计算并分析了在不同时间尺度上的太阳辐射逃逸率变化规律。数值计算结果表明,不同时间的逃逸太阳辐射率随太阳辐射入射角变化而变化,日墙方位角越小,太阳辐射逃逸率越小。南朝向房间夏至日太阳辐射逃逸率变化范围为8.88%~10.29%,全年太阳辐射逃逸率呈周期性波动,秋季与冬季的波动较大,波幅达6.8%,而夏至日时全天变化仅为1.4%。通过加权平均计算,得到太阳辐射逃逸率夏季最大为9.26%,其次是过渡季,冬季最小为8.12%。The radiation energy emitted by the sun cannot be effectively captured and escapes into space due to processes such as absorption and reradiation by surface buildings.In traditional architecture,assuming that incoming solar radiation cannot escape through the windows.However,this assumption does not hold for glass curtain wall buildings.To calculate the solar radiation escape rate,this study established a solar radiation model based on the radiance irradiation method and simulated it using Matlab software.The study analyzed the variation in solar radiation escape rate at different time scales.The numerical calculations show that the escape solar radiation rate varies with the incident angle of solar radiation at different times,with a smaller azimuth angle of the solar wall resulting in a lower escape solar radiation rate.The solar radiation escape rate on the summer solstice in rooms facing south ranges from 8.88%to 10.29%.Throughout the year,the solar radiation escape rate fluctuates periodically,with larger variations in autumn and winter,reaching a wave amplitude of 6.8%.However,the overall variation on the summer solstice is only 1.4%.Through weighted average calculation,the maximum solar radiation escape rate in summer is 9.26%,followed by the transition season,and the minimum in winter is 8.12%.

关 键 词：玻璃幕墙 太阳辐射 逃逸性 模拟计算 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]