Analytical Study of Structure of Laminar Diffusion Flame in Hydrogen-Enriched Methane-Air Mixture

The present study focuses on modeling a CH₄/H₂ diffusion flame using the laminar flamelet model. The investigation aims to explore the effect of hydrogen enrichment on temperature evolution, as well as on the emissions of CO, NO, OH. The results indicate an increase in the flame temperature due to hydrogen enrichment. Furthermore, nitric oxide (NO) exhibits a similar trend to temperature evolution, with NO emissions primarily arising thermally during combustion. Ultimately, this study underscores the significant role of hydrogen enrichment in stabilizing non-premixed flames.