An experimental study on the combustion characteristics using pure oxygen in a turbulent diffusion flame

순산소를 이용한 난류확산화염의 연소 특성에 관한 실험적 연구

Combustion using pure oxygen instead of air is an energy saving technology that can increase thermal efficiency by the improvement of burning rate and ultra high temperature flame, being used on the industrial spot. But information about it is not so enough yet. Flame figure, temperature distribution and emission concentration were measured with oxygen excess ratio and swirl number in a turbulent diffusion flame to investigate the combustion characteristics using pure oxygen. The results showed that flame figure became different as long as oxygen excess ratio varied and that concentration of NO and CO increased suddenly around ${\lambda}$=1.5.