한국연소학회:학술대회논문집

The Korean Society of Combustion (한국연소학회)
권호 표지

Effects of Oxidizer Inlet Velocity on NO Emission characteristics of 0.2MW Oxy-Fuel Combustor

산화제 입구 속도에 따른 0.2MW 순산소 연소기의 NO 배출 특성

  • 김호근 (한양대학교 대학원) ;
  • 이상민 (한국기계연구원, 청정환경기계연구센터) ;
  • 안국영 (한국기계연구원, 청정환경기계연구센터) ;
  • 김용모 (한양대학교 대학원)
  • Published : 2006.04.14
Download PDF
⟨ Previous Next ⟩

Abstract

Effects of oxidizer inlet velocity on NO emission characteristics of 0.2MW oxy-fuel combustor have been experimentally investigated. The NO formation process in the oxy-fuel combustion is extremely sensitive even for the small fraction of nitrogen in oxidizer. By increasing the oxidizer velocity, flame length is reduced due to the enhanced turbulent mixing. The increased oxidizer velocity also results in the decreased flame temperature through the elevated entrainment rate of the recirculated product and the corresponding NO emission is drastically decreased. Experimental results clearly indicate that the entrained product gases play a crucial role to decrease the temperature at the flame zone and the post flame zone where the thermal NO is mainly formed.

Keywords