Gaseous flame suppression mechanisms

Christophe Proust; Emmanuel Leprette; Didier Jamois; M. Bichon

Gaseous flame suppression mechanisms

Christophe Proust ^{1, 2} Emmanuel Leprette ¹ Didier Jamois ¹ M. Bichon

1 INERIS - Institut National de l'Environnement Industriel et des Risques

2 TIMR - Transformation Intégrée de la Matière Renouvelable

Abstract : Suppression is used in industrial situations where other mitigations means are inadequate. A number of suppression techniques exist but, today, most of them use an extinguishing powder like sodium bicarbonate. In this paper, a physical analysis of the action of this particular suppressant is proposed and compared to that of radically different inert powders like magnesium oxide. The incidence of the particle size is discussed. The results of the analysis are compared to specific experimental data produced on purpose using a 1 m3 vessel and methane-air mixtures.

Keywords : GAS EXPLOSIONS FLAME PROPAGATION EXTINCTION SUPPRESSION

Document type :

Conference papers

Domain :

Environmental Sciences / Environmental Engineering

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