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Proceedings of BSO Conference 2018: Fourth Conference of IBPSA-England

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Modelling and Simulation of Integrated Responsive Solar-Shading with Double Skin Facades in Hot Arid Climates

Yomna Saad ElGhazi, Neveen Hamza, Martyn Dade-Robertson

Abstract: This paper tests the performance of a kinetic solar shading system in a double skin façade in a hot arid climate. The shading system is thermally actuated. Computational Fluid Dynamics (CFD) for modelling air flow and heat transfer in DSF is used. It combines RNG k-epsilon turbulence model with P1 radiation model. Shape Memory Alloys (SMAs) work with actuation temperature from 35-40ᵒC. Simulation runs are carried to compare thermal performance of three cavity widths; 0.6, 0.8, 1.0m; and three solar-shading opening ratios; 30%, 50% ,70%; to detect the optimal settings to reduce direct solar radiation indoors. The 1m wide cavity with the screen located 0.10m from the outer glass and apertures between 30% to 50% in peak summer midday are recommended.
Pages: 467 - 474
Paper:
bso2018_5A-2