Experimental study of the limiting conditions for diffusion combustion of gases and vapors in various media

Extinction conditions for diffusion flames of gases and vapors in various media were studied experimentally. The limiting blowout velocities of a diffusion jet when heated H2−N2 and H2−H2O mixtures flow out into air were found. The minimum fire-extinguishing concentrations upon diffusion combustion of gases (CH4 and C3H8) and liquids (A-76 gasoline) were measured.