이중원추형 모형연소기에서 압력과 공기비에 따른 화염 구조 및 NOx 배출특성

Effect of pressure and stochiometric air ratio on flame structure and NOx emission in gas turbine dump combustor with double cone burner

  • 남현수 (부산대학교 기계공학부) ;
  • 한동식 (부산대학교 기계공학부) ;
  • 김규보 (부산대학교 화력 발전 에너지 분석 기술센터) ;
  • 전충환 (부산대학교 기계공학부, 기계기술연구소)
  • 발행 : 2012.04.13

초록

This work presents an experimental investigation to study $NO_x$ emissions under stoichiometric air ratio and elevated pressure (2~10bar) in a High Press Combustor(HPC) equiped with double cone burner which was designed by Pusan Clean Coal Center(PC3). Exaust gas temperature and $NO_x$ emissions were measured at the end of the combustion chamber. The $OH^*$ radical concentration and $NO_x$ emission were decreased as a function of increasing ${\lambda}$ generally. On the other hand, $OH^*$ radical concentration and $NO_x$ emission increased with ${\lambda}$ pressure of the combustion chamber. $NO_x$ emissions which were governed by thermal $NO_x$, were highly increased under the elevated pressure, but slightly increased at sufficiently low fuel concentrations (${\lambda}>2.0$).

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