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Proceedings of BSO Conference 2016: Third Conference of IBPSA-England

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Parametric Analysis Of Solar Shading Parameters In Intermediate Orientations Located In Desert Climates

Ayman Wagdy, Sarah Mokhtar, Amira Abdel-Rahman

Abstract: Improving daylighting performance for offices provides positive effects on well-being, productivity and energy savings. High exposure to direct solar radiation in desert climates has been addressed in the literature by the use of shading devices. A study of the effect of four parameters (screen rotation, depth and tilt, window-to-wall ratio) on daylighting of a generic office in the deserts of Cairo, Egypt was carried out in two intermediate orientations (SE and NE) through a parametric simulation approach using Rhino 3D, Grasshopper, SpeedSim-for-DIVA and Diva-forRhino. The newly approved IES metrics were used to evaluate the 1120 iterations with an exhaustive method. The use of mainly horizontal shading, downward tilting shades, high window-to-wall ratio (WWR), and large screen depths were suggested.
Pages: 130 - 137
Paper:
bso2016_1114