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

Lookup NU author(s): Yomna Elghazi, Professor Neveen Hamza, Professor Martyn Dade-Robertson

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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.

Publication metadata

Author(s): Elghazi Y, Hamza N, Dade-Robertson M

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 4th International Conference on Building Simulation and Optimization (BSO 2018)

Year of Conference: 2018

Pages: 467-474

Online publication date: 11/09/2018

Acceptance date: 30/08/2018

Publisher: IBPSA-England

URL: https://www.bso2018.event.cam.ac.uk/

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