Investigation on the effect of nozzle angle on the stability of methane-hydrogen/oxygen inverse diffusion lifted flame

Key Points

• Stability of the lifted flame decreases with increasing nozzle angle, affecting combustion efficiency.
• Optimal nozzle angle identified at 20 degrees, correlating with the highest stability metrics for methane-hydrogen flames.
• Assessment using various nozzle angles revealed significant changes in flame structure and behavior under controlled conditions.
• Findings emphasize the critical need for specific nozzle configurations in designing safer combustion systems.