고온 배기가스의 온도 및 유량이 확산화염의 구조 및 NOx 발생에 미치는 영향

The Effect of Temperature and Flow Rate in Hot Exhaust Gas on the NOx Emission and Flame Structure of Diffusion Flame

The experimental study was carried out for the diffusion flame characteristics of second stage combustor with the variations of temperature and supplying rate of hot exhaust gas from first stage combustor. It also examined the flame structure and NOx formation of the second stage combustor in which the fuel(natural gas) is supplying into the mixture of oxygen hot exhaust gas from first stage combustor. The results show that the increasement of temperature and flow rate of exhaust gas lead to increase the NOx up to 30ppm with 19% $O_2$ condition