This article is cited in 31 papers

Fire suppression by aerosols of aqueous solutions of salts

O. P. Korobeinichev, A. G. Shmakov, A. A. Chernov, T. A. Bolshova, V. M. Shvartsberg, K. P. Kutsenogii, V. I. Makarov

Institute of Chemical Kinetics and Combustion, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: Results of laboratory experiments were verified by full-scale tests in which two types of model fire sources were extinguished by salt-solution aerosols. The tests showed that short-term action of an aerosol cloud of an aqueous solution of potassium ferricyanide K$_3$[Fe(CN)$_6$] on the flame front of a surface forest fire led to suppression of the gas-phase combustion, and in the case of a model fire source of class A (burning wood) to its complete extinction. The minimum extinguishing mass concentration of K$_3$[Fe(CN)$_6$] in these experiments – 4.5 g/m$^3$ – is close to that measured earlier in laboratory experiments. It was found that, in fire suppression by an aerosol of the aqueous solution of K$_3$[Fe(CN)$_6$], the volumetric flow rate of this fire suppressant was 30 times lower than the standard flow rate of pure water from a fire hose.

Keywords: fire extinguishing, aerosols, fire suppressants, inhibitors, metal containing compounds.

UDC: 536.46+66.097.7+547.241

Received: 05.03.2009
Accepted: 07.05.2009

 English version: Combustion, Explosion and Shock Waves, 2010, 46:1, 16–20

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