建筑节能中遮阳系数简化计算的探讨与补充  

Study and Supplement for Simplified Calculation of Shading Coefficient in Building Energy Efficiency

作　　者：郑洪伟[1] 张进 毕广宏 赵立华[3] ZHENG Hongwei;ZHANG Jin;BI Guanghong;ZHAO Lihua(Guangzhou the Pearl River Industrial Group Co.,Ltd.,Guangzhou 510060,China;Guangzhou Zhujiang Foreign Investment Building Design Institute Co.,Ltd.,Guangzhou 510640,China;State Key Laboratory of Subtropical Building Science,School of Architecture,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]广州珠江实业集团有限公司,广州510060 [2]广州珠江外资建筑设计院有限公司,广州510640 [3]华南理工大学建筑学院亚热带建筑科学国家重点实验室,广州510640

出　　处：《广东土木与建筑》2024年第12期16-20,76,共6页Guangdong Architecture Civil Engineering

摘　　要：文章对建筑节能中遮阳系数的简化计算进行研究,对比分析了各遮阳系数计算方法之间的结果差异。针对实践中常见的建筑自遮挡形式和遮阳构件形式,进一步分析了单边垂直遮阳的特点和遮阳板两侧加宽对遮阳系数的影响;并结合计算结果进行拟合,对已有的简化计算公式进行了补充,结果发现对于单边垂直遮阳工况,在夏季遮阳系数的计算中,遮阳板在南侧和北侧(或东侧和西侧)的结果差距很小,对太阳辐射的遮挡效果约为双边垂直遮阳的一半;对于遮阳板两侧加宽工况,与不考虑两侧加宽相比,遮阳系数下降可达0.2以上。This article studies the simplified calculation of shading coefficient in building energy efficiency,and compares and analyzes the differences in results between various shading coefficient calculation methods.Further analysis was conducted on the characteristics of single-sided vertical shading and the impact of widening the sun visor on the shading coefficient,in response to common forms of self shading and shading components in practice;And combined with the calculation results for fitting,the existing simplified calculation formula was supplemented.The results showed that for the single-sided vertical shading condition,in the calculation of the shading coefficient in summer,the difference in the results of the sun visor on the south and north sides(or east and west sides)was very small,and the shading effect on solar radiation was about half of that of the double-sided vertical shading;For the condition of widening the sun visor on both sides,compared with not considering the widening on both sides,the sun shading coefficient can decrease by more than 0.2.

关 键 词：建筑节能 建筑遮阳 建筑遮阳系数 简化计算 

分 类 号：TU111.48[建筑科学—建筑理论]