An Experimental Study on Regeneration Characteristics of Catalyzed Diesel Particulate Filter with Variation of Exhaust Gas Temperature and Composition

배기가스 온도 및 조성 변화에 따른 CDPF의 재생 특성에 관한 실험적 연구

  • 조용석 (국민대학교 기계자동차공학부) ;
  • 이정섭 (국민대학교 자동차공학전문대학원) ;
  • 윤여빈 (국민대학교 자동차공학전문대학원) ;
  • 박영준 (국민대학교 자동차공학전문대학원) ;
  • 이성욱 (국민대학교 기계자동차공학부)
  • Published : 2008.08.01


The catalyzed diesel particulate filter (CDPF) is widely used for collecting soot from the exhaust gas of diesel engine. However, the CDPF need being regenerated after the soot accumulation. It is important to know characteristics of regeneration for CDPF with variation of exhaust gas temperature and composition. This study presents characteristics of regeneration according to variable exhaust gas composition. Furthermore, the experiment were performed variable gas temperature of CDPF inlet gas at each exhaust gas composition. Test-rig is used to control at each in let gas temperature and composition during regeneration of CDPF. Reaction intensity($I_c$) is used to compare with each result. Experimental results indicated that increased concentration of $NO_x$ and $O_2$ lead to regenerate more greatly. Also, higher temperature of exhaust gas leads to make CDPF cleaner.



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