Numerical study on the effects of ozone addition on the development of laminar premixed flames and emissions for methane and propane in a co-flow configuration

In this study, a numerical investigation on the effects of ozone addition laminar premixed flame development and emissions formation carbon monoxide (CO) nitrogen oxides (NOx) for methane propane in co-flow burner is presented. Simulations reacting mixtures with concentrations 3810 ppm 6000 were performed at atmospheric pressure, ambient temperature 298 K equivalence ratios (φ) 0.8, 1.0 1.3. Based simulation results, improved development, where temperatures methane/propane raised by 42 (maximum difference). Besides, formaldehyde (CH2O) hydroxyl (OH) mass fractions also increased subsequently elongated stand-off distances 12%. The burning velocities accelerated 8.7%, which contributed higher rates fuel oxidation due to concentration. Although CO NOx enhanced flames deviated maximum difference 29%, effect these found varied according fuels φ values.