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Corresponding Author

Asmaa Moawad Gad

Subject Area

Architectural Engineering

Article Type

Original Study

Abstract

Mashrabiya is a distinct feature of our architectural legacy and heritage, daylighting is one of the most significant functions of Mashrabiya. The paper aims at studying the impact of Mashrabiya; in particular, the smart Mashrabiya screen façade on daylighting performance and visual comfort. The application of this methodology occurs in two stages: In the first stage, a typical office room with dimensions of 4 x 6 meters, and a 3-meter height is studied to determine the current state of daylighting levels through the suggested eastern, southern, and western openings in the weather of Cairo, Egypt. The second stage examines the efficiency of daylight using five suggested dynamic facade motion scenarios on three fundamental orientations (east, south, and west). The parameterized simulation research is enhanced by the Grasshopper for Rhino software, and also Ladybug and Honeybee scripts for Grasshopper, that were applied to enhance daylight performance in the indoor space, were used to carry out the simulation process, with the integration of LEED V4 criteria. The metrics of spatial Daylight Autonomy (sDA 300/50%) and Annual Sunlight Exposure (ASE 1000/250) were used in the evaluation process. The research optimized the skin configuration for the east, south, and west façade orientations which yielded the best daylight levels (83% SDA), (55% sDA), and (83% sDA) respectively, and (2% ASE) for the east-oriented room, (0% ASE) for the south, and (0% ASE) western room. The research recommended the use of kinetic façade screens in accordance with LEED V4 requirements

Keywords

Daylight performance, Mashrabiya, Kinetic Façade, Daylight simulation software

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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