Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Conversion Characteristics of Warm-up Catalytic Converter for the Diesel Vehicle

디젤자동차용 웜업 촉매 시스템의 정화 특성

  • Choi Byungchul (school of Mechanical Systems Engineering, Chonnam National University) ;
  • Juhng Woonam (school of Mechanical Systems Engineering, Chonnam National University) ;
  • Yoon Youngbae (Graduate School of Mechanical Engineering, Chonnam National University) ;
  • Jung Myunggun (R & D Center, Ordeg Company)
  • 최병철 (전남대학교 기계시스템공학부) ;
  • 정우남 (전남대학교 기계시스템공학부) ;
  • 윤영배 (전남대학교 대학원 기계공학과) ;
  • 정명근 (오덱(주) 기술연구소)
  • Published : 2005.05.01
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Abstract

In this study, we investigated the characteristics of the conversion efficiency and the effect of ageing Diesel Oxidation Catalyst (DOC). The DOC was composed of Warm-up Catalytic Converter (WCC) and Underbody Catalytic Converter (UCC). As the result, the conversion efficiency of THC was 10$\~$50$\%$ on WCC and 30$\~$40$\%$ on UCC .The conversion efficiency of CO was 80$\~$90$\%$ on WCC and remained 10$\~$20$\%$ of CO was purified on UCC. The WCC shows high conversion efficiency on CO. After 20 hours aging process of engine bench, conversion efficiencies of THC and CO were improved a little, because it was activated catalyst surface by 20 hours aging. In case of 80 hours aging, the conversion efficiencies of THC and CO were decreased on WCC. However, the UCC was not affected by aging process .

Keywords

References

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