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AuthorIsmail, Nagham
AuthorOuahrani, Djamel
AuthorAl Touma, Albert
Available date2023-05-16T09:07:33Z
Publication Date2023
Publication NameJournal of Building Engineering
ResourceScopus
ISSN23527102
URIhttp://dx.doi.org/10.1016/j.jobe.2023.106564
URIhttp://hdl.handle.net/10576/42793
AbstractA growing interest has been recently demonstrated in studying the thermal resilience of buildings that goes beyond minimum standard requirements to meet performance targets under extreme climate changes. However, there is currently no universally agreed-upon metric for measuring thermal resilience. Therefore, this study focuses on quantifying the thermal resilience of office buildings during a power outage disruption. This is achieved by developing a simplified straightforward model that is based on rational definition. The metric evaluates the number of safe and comfortable hours before loss of productivity for a typical hot office day based on two criteria: thermal habitability and passive survivability. When one of these conditions is jeopardized, the number of hours is recorded by performing energy simulations that account for different ranges of office building parameters. The simulation results are expressed in the form of a multi-variate linear regression equation. The minimum office thermal resilience (OTR) is found to occur at relatively large window to wall ratio (WWR), large solar heat gain coefficient (SHGC), and low external wall thermal capacity (kappaw). To validate the developed simplified model, experiments are conducted in the Energy Efficiency and Building Design Laboratory located at Qatar University. Fair agreement is revealed between the energy simulations and the experiment, with a maximum relative error of 12%. Furthermore, the linear regression model developed in this study accurately predicts the office thermal resilience metric (OTR), with a mean relative error of 10% when compared to both the simulations and the experiments. 2023
SponsorThe authors would like to acknowledge the financial support of Qatar University and Qatar National library ; consultant engineer Mr. Armin Baeumler and his team from SAPA company for their efforts during the lab commissioning and installation at Qatar University.
Languageen
PublisherElsevier
SubjectEnergyPlus simulations
Experimental validation
Multi-variate linear regression model
Passive survivability
Thermal habitability
Thermal resilience
TitleQuantifying thermal resilience of office buildings during power outages: Development of a simplified model metric and validation through experimentation
TypeArticle
Volume Number72
dc.accessType Abstract Only


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