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On the derivation of temperature-time curves for large scale compartment fires
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Orientador(es)
Resumo(s)
Thermal environment prediction in compartment fires remains one of the main challenges for fire safety engineers. Indeed, the design of sprinklers, the egress sceneries, and the configurations of structures collapses, are closely related to the temporal evolution of the temperature within compartments. Despite several questionable assumptions, the Eurocode parametric fire curves (EPFC) are still the most adopted methodology to replicate natural fire exposure of structural elements. The present investigation examines, through a case
study, the ability of the EPFC analytical formulation to recover the heating phase evolution on large-scale compartment fires. The analysis aims to tune the parameters of a non-uniform T-Time formulation, derived from a numerical experimentation. A focus is made on fire development key factors, namely, the opening factor, the fuel load density, and the walls effusivity, on which maximum temperature as well as heating phase duration are discussed. The investigation is completed by a nonstationary 3D-LES simulation, using the NIST-FDS® solver.
Descrição
Palavras-chave
fire engineering temperature-time curve numerical simulation FDS
Contexto Educativo
Citação
Benarous, Abdallah; Romaissa,Hachana; Mohamed, Roudane; Piloto, Paulo A.G. (2023). On the derivation of temperature-time curves for large scale compartment fires. Inb 53rd ISTANBUL International Conference on “Advances in Science, Engineering & Technology”. Istanbul, Turkiye. p. 14-20. ISBN 978-989-9121-31-7. DOI: 10.17758/DIRPUB15.DiR1123106