Double Skin Façade for an office building in the extreme UAE climate

Regional climate change scenarios indicate ever-increasing building energy consumption trends which are a serious cause of concern for the built environment sector of the UAE. Mitigating the increasing energy trends is very well understood by employment of active technological changes in the buildin...

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Main Author: ALI, NIZAM AHMED AKBAR (author)
Published: 2021
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Online Access:https://bspace.buid.ac.ae/handle/1234/2188
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author ALI, NIZAM AHMED AKBAR
author_facet ALI, NIZAM AHMED AKBAR
author_role author
dc.creator.none.fl_str_mv ALI, NIZAM AHMED AKBAR
dc.date.none.fl_str_mv 2021-07
2023-01-17T09:51:12Z
2023-01-17T09:51:12Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv 20182023
https://bspace.buid.ac.ae/handle/1234/2188
dc.language.none.fl_str_mv en
dc.publisher.none.fl_str_mv The British University in Dubai (BUiD)
dc.subject.none.fl_str_mv double skin facade
Unites Arab Emirates (UAE)
office building
climate change
energy consumption
built environment
passive skin technology
dc.title.none.fl_str_mv Double Skin Façade for an office building in the extreme UAE climate
dc.type.none.fl_str_mv Dissertation
description Regional climate change scenarios indicate ever-increasing building energy consumption trends which are a serious cause of concern for the built environment sector of the UAE. Mitigating the increasing energy trends is very well understood by employment of active technological changes in the building services systems. This research focuses on the other side of the coin which is the passive technologies in reducing building energy consumption, more specifically technologies related to the skin of the building. A conventional passive skin technology (external shading) is fielded against unconventional passive skin technology (double skin façade - DSF) on key metrics such as annual cooling energy, annual solar gain, temperature and velocity profiles. The course of the research takes a holistic approach starting with a review of existing studies leading all the way to intermodal comparison of the dynamic thermal simulation and CFD results. Promising results are obtained for the building with external shading with 9.2% annual cooling energy savings whereas the study shows an increase of +1.42% jump in annual cooling energy consumption with the DSF building as compared to a generic high rise tower base case. Intermodel comparison reflects upon the under estimation of the dynamic thermal simulations in predicting cooling energy savings as compared to CFD simulation. An additional CFD sensitivity analysis further sheds light into the ability of the k-e turbulence models and constant effective models in determining stable solutions for CFD simulation of large unrestricted vertical volumes in DSF cavities.
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network_name_str The British University in Dubai repository
oai_identifier_str oai:bspace.buid.ac.ae:1234/2188
publishDate 2021
publisher.none.fl_str_mv The British University in Dubai (BUiD)
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spelling Double Skin Façade for an office building in the extreme UAE climateALI, NIZAM AHMED AKBARdouble skin facadeUnites Arab Emirates (UAE)office buildingclimate changeenergy consumptionbuilt environmentpassive skin technologyRegional climate change scenarios indicate ever-increasing building energy consumption trends which are a serious cause of concern for the built environment sector of the UAE. Mitigating the increasing energy trends is very well understood by employment of active technological changes in the building services systems. This research focuses on the other side of the coin which is the passive technologies in reducing building energy consumption, more specifically technologies related to the skin of the building. A conventional passive skin technology (external shading) is fielded against unconventional passive skin technology (double skin façade - DSF) on key metrics such as annual cooling energy, annual solar gain, temperature and velocity profiles. The course of the research takes a holistic approach starting with a review of existing studies leading all the way to intermodal comparison of the dynamic thermal simulation and CFD results. Promising results are obtained for the building with external shading with 9.2% annual cooling energy savings whereas the study shows an increase of +1.42% jump in annual cooling energy consumption with the DSF building as compared to a generic high rise tower base case. Intermodel comparison reflects upon the under estimation of the dynamic thermal simulations in predicting cooling energy savings as compared to CFD simulation. An additional CFD sensitivity analysis further sheds light into the ability of the k-e turbulence models and constant effective models in determining stable solutions for CFD simulation of large unrestricted vertical volumes in DSF cavities.The British University in Dubai (BUiD)2023-01-17T09:51:12Z2023-01-17T09:51:12Z2021-07Dissertationapplication/pdf20182023https://bspace.buid.ac.ae/handle/1234/2188enoai:bspace.buid.ac.ae:1234/21882023-01-17T23:00:23Z
spellingShingle Double Skin Façade for an office building in the extreme UAE climate
ALI, NIZAM AHMED AKBAR
double skin facade
Unites Arab Emirates (UAE)
office building
climate change
energy consumption
built environment
passive skin technology
title Double Skin Façade for an office building in the extreme UAE climate
title_full Double Skin Façade for an office building in the extreme UAE climate
title_fullStr Double Skin Façade for an office building in the extreme UAE climate
title_full_unstemmed Double Skin Façade for an office building in the extreme UAE climate
title_short Double Skin Façade for an office building in the extreme UAE climate
title_sort Double Skin Façade for an office building in the extreme UAE climate
topic double skin facade
Unites Arab Emirates (UAE)
office building
climate change
energy consumption
built environment
passive skin technology
url https://bspace.buid.ac.ae/handle/1234/2188