Home – Home – Jornals – Combustion, Explosion and Shock Waves 2023 number 1

A kinetic model for the ignition and combustion of mixtures of propane and n-butane in the air has been developed. The model contains 348 reactions involving 72 species and includes both a high and low-temperature mechanism of propane and n-butane oxidation. The kinetic model was tested against experimental data on the ignition delay time and laminar flame speed. The model provides a good fit to experimental data on propane ignition and the laminar flame speed in propane-air mixtures, ignition of n-butane under different initial conditions (T₀ = 670 ÷ 1 550 K, ρ₀ = 1 ÷ 30 atm, φ = 0.3 ÷ 2.0), laminar flame speed in mixtures of n-butane with air at T₀ = 298 K, ρ₀ = 1 atm, and various stoichiometric ratios φ= 0.67 ÷ 1.5), as well as on the ignition of stoichiometric C₃H₈/C₄H₁₀/N₂/Ar mixtures with different relations C₃H₈/C₄H₁₀ at T ₀ = 710 ÷ 910 K and ρ₀ = 17.8 atm. The developed kinetic mechanism was used to perform a demonstration numerical simulation of combustion of propane-butane fuel in a homogeneous combustion chamber