The experimental study on the NOx formation of fuel staged combustor

연료다단 연소기의 NOx 발생특성에 관한 실험적 연구

  • 한지웅 (호서대학교 일반대학원 환경공학과) ;
  • 안국영 (한국기계연구원 열유체환경연구부 연소환경기계그룹) ;
  • 김한석 (한국기계연구원 열유체환경연구부 연소환경기계그룹) ;
  • 정진도 (호서대학교 환경공학과)
  • Published : 2001.06.01

Abstract

The characteristics of NOx emission in multi fuel/air staged combustor have been experimentally studied. The design concept of multi fuel/air staged combustor is creation of two separate flame, a primary flame is act as a pilot Dame for the secondary combustion stage combustion zone, where most of fuel bums. Experiments were performed on a semi-industrial scale (thermal input 0.233 MW) in a laboratory furnace and Liquefied Petroleum Gas(LPG) was used as primary and secondary fuels. The study included parametric study to identify the optimum operating conditions which are primary/secondary fuel ratio, primary/secondary air ratio, primary swirl intensity and secondary swirl intensity for reducing NOx emission. The test demonstrated that NOx emission can be reduced by ${>}$70% in accordance with operating conditions.

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