| 双层玻璃幕墙的传热特征研究 |
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| 引用本文： | 何国青,舒丽芳,周瑜,张三明,白启安. 双层玻璃幕墙的传热特征研究[J]. 工业建筑, 2012, 0(Z1): 50-53,165 |
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| 作者姓名： | 何国青 舒丽芳 周瑜 张三明 白启安 |
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| 作者单位： | 浙江大学建筑工程学院建筑技术研究所;浙江东宸建设控股集团有限公司;浙江大学建筑设计研究院建筑幕墙设计分院 |
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| 摘 要： | 展示了一个通过计算流体动力学(CFD)计算机模拟获得双层玻璃幕墙传热特征的方法。通过CFD模拟计算的结果,拟合得到了双层玻璃幕墙系统和单层玻璃幕墙系统的室内得热与太阳辐射和室内外温差两个变量之间的线性近似公式。该关系表征了幕墙系统的传热特征:太阳得热系数和有效传热系数(或U值)。用该公式估算夏冬季透过幕墙的室外冷(热)负荷十分方便,工程实用性很高。
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| 关 键 词： | 双层玻璃幕墙 传热特征 能耗计算 太阳得热系数 传热系数 |
HEAT TRANSFER CHARACTERISTICS OF DOUBLE SKIN FACADE SYSTEMS |
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| Affiliation: | He Guoqing1 Shu Lifang1 Zhou Yu2 Zhang Sanming1 Bai Qi’an3(1.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China; 2.Zhejiang Dongchen Construction Holding Group,Zhuji 311801,China; 3.Architectural Design and Research Institute,Zhejiang University,Hangzhou 310012,China) |
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| Abstract: | A method was demonstrated to obtain the thermal transfer characteristics of a double skin facade(DSF) system using computational fluid dynamics(CFD) techniques.Based on results of the CFD simulation using local climatic data,a linear relation between the room heat gain and two other variables,the solar radiation and the temperature difference between the room and the ambient,can be obtained through the regression method and the criterion of least sum of squares.This liniear relation implies two characteristics of a DSF system:solar heat gain and effective heat transfer coefficient or U value.Such relationshop is straightforward and easy to use to calculate the room heating load or cooling load through the facade system and therefore has greater practical implications. |
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| Keywords: | double skin facade system thermal transfer characteristic energy calculation solar heat gain coefficient heat transfer coefficient |
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