This article is cited in 1 paper

Surface effect on branching chain reactions in filtration combustion of gases

V. V. Zamashchikov, V. A. Bunev

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

Abstract: The existence of lean and rich concentration limits of the low-velocity regime of flame propagation was shown experimentally under filtration of a combustible gas mixture in narrow tubes. The values of the limits depend on the inner diameter of the tube. Experiments with an inhibitor affecting the concentration limits of combustion-wave propagation in tubes in a low-velocity regime showed that branching chain reactions occur in the filtration combustion wave and the concentrations of active centers thus exceed the equilibrium values. In the low-velocity regime, the surface of the narrow quartz tube slightly decreases the role of active centers in combustion-wave propagation.

Keywords: filtration combustion of gases, chain reactions, inhibition, flame propagation limits, low-velocity regime.

UDC: 536.4

Received: 21.01.2002
Accepted: 10.11.2002

 English version: Combustion, Explosion and Shock Waves, 2003, 39:4, 431–436

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