THE INFLUENCE OF CO2ADDITIVES ON FIRE EXTINGUISHING EFFICIENCY OF BINARY AEROSOL-GAS MIXTURE

Abstract

The article is dedicated to theoretical and experimental investigation of the influence of CO2 additives on binary aerosol-gas mixture fire extinguishing efficiency. Adding carbon dioxide to aerosol has reduced the extinguishing concentration of final binary mixture components to 30%. The resulting optimal ratio of the binary mixture components have been determined (aerosol – 15 g/m3 – carbon dioxide – 7%). These ratios have allowed to extinguish the diffusion flame of heptane with low components flowrate. The fire-extinguishing aerosol action is a complex synergistic effect, which manifests itself in reducing the necessary concentration of fire extinguishing components of a binary mixture up to 30% of the initial concentration.