Influence of gas species on backdraft probability using a diffusion flame limits criterion

Pérez Jiménez, Christian; Franssen, Jean-Marc; Karlsson, Bjorn

doi:10.1177/0734904108097275

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Influence of gas species on backdraft probability using a diffusion flame limits criterion

Pérez Jiménez, Christian; Franssen, Jean-Marc; Karlsson, Bjorn

2009 • In Journal of Fire Sciences, 27 (2), p. 143-156

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https://hdl.handle.net/2268/15098

DOI
10.1177/0734904108097275

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Keywords :

backdraft; under-ventilated fire; flammability limits; diffusion criterion; gas species

Abstract :

[en] Backdraft is a limited-ventilation fire phenomenon closely linked to the unburnt gases accumulated in the fire compartment just before creating an opening that allows a new supply of oxygen to enter the compartment. The aim of this article is to help understanding the influence of gas species such as hydrocarbon CmHn, water, carbon dioxide, oxygen, and nitrogen on backdraft probability. The influence of increasing the number of moles of the above gas species as well as the number of atoms of carbon, hydrogen, and oxygen in the fuel composition is analyzed. For this purpose, a diffusion flame limit criterion based on Le Chatelier's rule is used. In order to verify the obtained results, validation with 41 backdraft experiments is carried out.

Disciplines :

Materials science & engineering

Author, co-author :

Pérez Jiménez, Christian

Franssen, Jean-Marc ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu

Karlsson, Bjorn

Language :

English

Title :

Influence of gas species on backdraft probability using a diffusion flame limits criterion

Publication date :

March 2009

Journal title :

Journal of Fire Sciences

ISSN :

0734-9041

Publisher :

SAGE Publications

Volume :

Issue :

Pages :

143-156

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 23 June 2009

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