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Optimisation of smoke extraction system in fire scenarios using CFD modelling

Baalisampang, T ORCID: 0000-0002-6429-7814, Saliba, E, Salehi, F, Garaniya, V ORCID: 0000-0002-0090-147X and Chen, L 2021 , 'Optimisation of smoke extraction system in fire scenarios using CFD modelling' , Process Safety and Environmental Protection, vol. 149 , pp. 508-517 , doi: 10.1016/j.psep.2020.11.036.

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Abstract

Understanding the consequences of fuel release and fire accident is an important aspect of the design and construction of buildings and infrastructures. Particularly, an increasing number of catastrophic consequences of recent fire accidents in high-rise buildings has led to the demand for a rigorous and holistic approach for infrastructure fire safety analysis and performance evaluation. The current study proposes a framework for liquefied petroleum gas heat release simulations and modelling the visibility of evacuees on the egress path during a fire event using efficient computational fluid dynamics (CFD) model. The framework consists of scenario modelling, optimised smoke detector layout, mechanical smoke extraction system, and visibility analysis. The CFD simulation is first validated using experimental data demonstrating a very good agreement. A case study for detector layout is then considered, showing the proposed approach increases the visibility of the egress path along the corridor of a building during fuel release and fire accident. The study will offer an effective platform for modelling fire risk and assessing the performance of fire safety mechanisms in buildings which can be also beneficial to enhance urban infrastructures safety.

Item Type: Article
Authors/Creators:Baalisampang, T and Saliba, E and Salehi, F and Garaniya, V and Chen, L
Keywords: fire safety, detector layout, fire dynamics simulator (FDS), visibility assessment
Journal or Publication Title: Process Safety and Environmental Protection
Publisher: Inst Chemical Engineers
ISSN: 0957-5820
DOI / ID Number: 10.1016/j.psep.2020.11.036
Copyright Information:

Copyright 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

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