2008 , Volume 13, Special issue, p.78-86

A scheme of pulse system of fire fighting (PSFF) for intensive heat sources extinguishing with the help of a solid-propellant gas generator is suggested. Dispersion of the finely dispersed powder of the flame retardant substance and its transport into the combustion zone in the form of an aerosol cloud is made possible due to the high pressure created by the burning products of the gas generator. Mathematical model of processes in PSFF is proposed. Results of numerical modelling suggest that this devise provides a rather stable structure of the particle cloud and which is able to support an effective transport of aerosol particles into the combustion zone.