Effects of Regeneration Parameters on Oxidation of Particulate in a Diesel Particulate Trap System

디젤 입자상물질 후처리 장치에서 입자상물질의 연소에 미치는 재생 인자의 영향

  • 김재업 (서울대학교 대학원 기계공학과) ;
  • 조훈 (서울대학교 대학원 기계공학과) ;
  • 김형욱 (서울대학교 대학원 기계공학과) ;
  • 박동선 (서울대학교 대학원 기계공학과) ;
  • 유천 (서울대학교 대학원 기계공학과) ;
  • 김응서 (서울대학교 기계공학과)
  • Published : 1998.03.01

Abstract

The effects of the regeneration parameters such as inlet gas temperature, space velocity, oxygen concentration of the exhaust gas, and initial particulate loading on the oxidation of the particulate inside ceramic cordierite filter have been investigated through an engine experiment. As the inlet gas temperature increases, the remarkable filter temperature occurs owing to the rapid combustion rate. Though the higher space velocity affirms the safe regeneration, it also requires much fuel consumption of the burner. For that reason, the space velocity should be compromised considering the fuel economy. The excessive accumulation of the particulate may cause undesirable regeneration temperatures inside filer even under the optimized regeneration condition. The inlet gas temperature should be selected to overcome the variation of the oxygen concentration which is inherent feature of the diesel engine. It is the most important factor in the regeneration control techniques.

Keywords

References

  1. SAE Paper 932495 SiC as A Substrate for Diesel Particulate Filters P. Stobbe;H. G. Petersen;J. W. Hoj;S. C. Sorenson
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