Optimizing energy performance using silica aerogel material in building envelope

Amr Soliman Elgohary; Haytham M. Elbadrawy; Shereen Khashaba

doi:10.22712/susb.20220006

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General Article

Optimizing energy performance using silica aerogel material in building envelope

31 March 2022. pp. 69-83

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Abstract

Transparent or translucent insulation materials (TIMs) represent a new class of efficient materials with high thermal resistance that have an increased demand lately due to its environmentally friendly characteristics. An overview of the TIMs types as smart and green building’s envelope material, geometrical structure classification and properties will be illustrated. The research investigates the thermal energy and daylighting performance of the silica aerogel as a TIM material applied to the external envelope of an existing office building located in New Cairo - Egypt compared to its installed glazing base case. The results indicated that the application of silica aerogel to the glazing system can reduce the annual cooling loads by around 45% in a typical office building and reducing the spaces needed to create internal courtyards to enhance the natural lighting and reduce heat gain on the building. With respect to the existing envelope glazing, the reduction could exceed than that if the glazing system is replaced with a different thickness of silica aerogel, which affects the U value of the envelope and its thermal performance. Applying the TIMs to buildings’ envelope has a great impact concerning energy performance in the green building assessment tools i.e. LEED and GPRS. The drivers and barriers of applying the TIMs are discussed according to the potential Egyptian market base case.

Keywords

transparent insulation materials TIMs

aerogel

energy optimization

building envelope

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Information

Publisher :Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center
Publisher(Ko) :건설구조물 내구성혁신 연구센터
Journal Title :International Journal of Sustainable Building Technology and Urban Development
Volume : 13
No :1
Pages :69-83
Received Date : 2022-02-24
Accepted Date : 2022-03-30
DOI :https://doi.org/10.22712/susb.20220006

International Journal of Sustainable Building Technology and Urban DevelopmentISSN:2093-761X(Print) 2093-7628(Online)건설구조물 내구성혁신 연구센터

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