FACTORS INFLUENCING THE BURNING RATE OF COMPOUNDS FROM WHICH FIRE EXTINGUISHING AEROSOLS ARE FORMED

Abstract

FACTORS INFLUENCING THE BURNING RATE OF COMPOUNDS FROM WHICH FIRE EXTINGUISHING AEROSOLS ARE FORMED The article deals with the topical issue of the influence of various factors on the combustion rate of fire extinguishing aerosol compounds (AFC). Aerosol fire extinguishing agents are becoming increasingly popular due to their efficiency, low fire extinguishing concentrations and environmental safety. However, for their effective use, it is necessary to understand and control the factors that affect the burning rate of AFC and the formation of fire extinguishing aerosol. To identify and analyse the factors affecting the burning rate of AUS in order to optimise their composition and increase the efficiency of fire extinguishing. The method of scientific analysis and synthesis, as well as the experimental method of research were used in the work. The main factors influencing the burning rate of AFC were determined. The chemical composition and ratio of the components of the AFC (fuel, oxidant, catalysts, additives). Geometric parameters of the AFC charge (presence of channels, holes). Physical properties of the components (melting point, molecular weight). The presence of internally bound oxygen in the molecular structure of the fuel. It has been established that to increase the combustion rate of AFC, it is necessary to use thermally unstable combustibles (rubbers, iditol, sucrose, epoxy resin), the optimal ratio of oxidants (potassium nitrate, potassium chlorate, potassium perchlorate) and catalytic additives. It is shown that ensuring the maximum combustion area of the AFC and the use of a complex geometric charge design contribute to an increase in the rate of fire extinguishing aerosol formation. The combustion rate of AFC is a key factor determining the effectiveness of fire extinguishing. To achieve a high combustion rate, it is necessary to optimise the composition of the AFC, taking into account the chemical and physical properties of the components, as well as the geometric parameters of the charge. Further research should be aimed at a detailed study of the influence of each of the factors on the burning rate of the AFC and the development of new effective compositions of aerosol-forming compounds.