Pollutant Emission Characteristics of Double-Concentric Diffusion Flame

이중 확산 연소장에서의 오염물질 배출 특성

  • 김종현 (인하대학교 기계공학과) ;
  • 이근오 (서울산업대학교 안전공학과) ;
  • 이창언 (인하대학교 기계공학과)
  • Published : 2002.09.01

Abstract

The NOx emission characteristics of double-concentric diffusion flames and normal diffusion flames fueled with CH$_4$ were studied. Experimental and numerical investigations were carried out for double-concentric diffusion flame with varying central air flow rate and normal diffusion flame. The Emission indices of NOx(EINOx) were measured by chemiluminescent method and calculated by numerical model based on detailed chemistry. From the comparison between double-concentric diffusion flames and normal diffusion flames, the results show that EINOx of double-concentric diffusion flames are lower than normal diffusion flame, because of Prompt EINOx was decreased. EINOx of double-concentric diffusion flames increase with central air flow rate increasing.

Keywords

Double-concentric Diffusion Flame;Normal Diffusion Flame;Central air flow rate;Flame shape;NOx Emission Index(EINOx)

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