双层皮玻璃幕墙遮阳百叶光学性能研究

Optical Properties of the Venetian Blinds of the Double Skin Facades

采用百叶单元模型直散分离的方法计算遮阳百叶的光学性能。对不同朝向、不同叶片角度的百叶光学性能进行了计算分析。计算结果表明,从节能的角度而言,东、西两向的百叶遮挡效果最好,南向较差,百叶叶片倾角越大,透过率越小,反射率越大,遮挡效果较好。

The optical properties of the venetian blinds are calculated in the direct and diffuse iso-lated method for the blinds unit model. The calculations are based on different orientations and different slats angles. Calculating results show that the best shading effect of the venetian blinds are in the east and west orientation, while the south is the worst. The larger of the slats angle, the lower the transmittance and the better shading effect, and vice versa.