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针对夏热冬冷地区常用的外循环式双层皮玻璃幕墙(DSF),介绍了冬季与夏季不同的使用策略,建立了冬季工况的热平衡方程,给出冬季工况综合传热系数的数值解析计算方法和CFD方法。在此基础上研究了冬季工况下不同太阳辐射强度、通风腔宽度和通风腔高度时的综合传热系数,分析了各因素变化时对综合传热系数造成影响的原因并给出设计建议。
Aiming at the commonly used exterior circulating double glazed glass curtain wall (DSF) in hot summer and cold winter area, the different usage strategies in winter and summer are introduced. The heat balance equation in winter is established. The numerical value of the integrated heat transfer coefficient in winter is given Analytical calculation method and CFD method. On this basis, the comprehensive heat transfer coefficient of different solar radiation intensity, ventilation cavity width and ventilation cavity height under winter conditions was studied. The reasons that caused the influence on the overall heat transfer coefficient when various factors were changed were analyzed and the design suggestions were given.