Facades Solar Screens Impact on Daylighting Performance in Buildings

Elcharkawi, Mohamed and Abdel-Salam, Hassan and Fikry, Mohamed (2023) Facades Solar Screens Impact on Daylighting Performance in Buildings. LET IT GROW, LET US PLAN, LET IT GROW. Nature-based Solutions for Sustainable Resilient Smart Green and Blue Cities. Proceedings of REAL CORP 2023, 28th International Conference on Urban Development, Regional Planning and Information Society. pp. 281-292. ISSN 2521-3938

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Abstract

Cities in hot climates feature clear skies most of the year, guarantting the provision of daylight into the interior. With the use of large glazed façades, controlling the penetration of solar radiation that contributes to thermal discomfort with passive solutions is acheived through the use of shading devices.These devices decrease energy loads of mechanical cooling. The facade solar screens is one of the shading strategies used and reported to be succeful in such hot climatic regions, blocking solar radiation while allowing visual access to external views. Such a strategy of screening the opennings with perforated surfaces has cultural and historical significance in multiple urban environmnets, demonstrated by the use of the traditional mashrabeya which are the inspiration for contemporary screens design. However, throughout the last decade, a large body of research has been concerned with the negative impact of solar screens on daylighting performance in internal spaces, leading to an increase in energy loads of artifical lighting. This paper aims to review the current research body concerned with the correlation between solar screens design parameters and daylighting performance. 21 articles fall under this paper’s realm. They are reviewed according to multiple comparison points, including: aims, spatial configuration of the test spaces, types and design of the tested solar screens, design parameters tackled, daylighting simulation tools, daylighting metrics, and finally, findings including parameters impact, empirical process methodolgy, and coorelation with other enviromental aspects. Thispaper discusses how the curent reviewed research body informs the design process for an environmentally conscious design of optimized solar screens with respect to daylight availability thereby promoting the use of passive design strategies towards greener cities and urban environments.

Item Type:	Article
Uncontrolled Keywords:	Parametric design, Passive design, Daylighting performance, Facade solar screens, Optimizing performance
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences N Fine Arts > NA Architecture T Technology > TH Building construction
Depositing User:	REAL CORP Administrator
Date Deposited:	03 Oct 2023 19:38
Last Modified:	04 Oct 2023 17:29
URI:	http://repository.corp.at/id/eprint/1052

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