双层皮幕墙内置遮阳百叶倾角评价方法

Evaluation Method of Blind Angle for Double Skin Facades

为了更加科学合理地动态调整双层皮幕墙(DSF)内置遮阳百叶的角度,满足自然采光和节能的双重需求,建立了受遮阳百叶倾角影响的室内综合得热量与平均采光系数的数学模型,通过对模拟结果的标准化处理和线性加权求和方法,建立了DSF内置遮阳百叶倾角评价模型.以长沙地区某建筑南向DSF为例,详细介绍了自然通风工况下,8:00至18:00时间段内,晴天及阴天典型日该双层皮幕墙百叶倾角评价模型的构建过程.通过模拟分析发现,长沙夏季晴天DSF遮阳百叶最佳倾角为82°,最佳倾角范围为73°~90°;长沙夏季阴天DSF系统遮阳百叶最佳倾角为0°,最佳倾角范围为0°~36°.

In order to make the adjustment of blinds angle in double skin facades （DSF） more scientific and reasonable,the models of indoor comprehensive heat and average daylight factor were established, respectively.Based on the standardized process of the above two models, the evaluation model of the blinds angle of DSF was established by using the linear weighted method.The construction process of the angle evaluation model in Changsha under the condition of natural ventilation from 8 to 18 was introduced in detail.Through the simulation analysis,it is found that in sunny summer of Changsha, the optimum angle is 82°,and the optimum angle range of blinds is 73° to 90°.In cloudy summer of Changsha,the optimum angle is 0°,and the optimum angle range of blinds is 0° to 36°.