Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Emission Analysis in Catalytic Converter Adopted Secondary Air Injection System for Cold Start Period

2차 공기 공급 시스템을 채택한 촉매 변환기 내 냉 시동 구간 배기가스 해석

  • Yun, Jeong-Eui (Department of Mechatronics, Kangwon National University - Samcheok Campus)
  • 윤정의 (강원대학교 삼척캠퍼스 메카트로닉스공학과)
  • Received : 2009.11.03
  • Accepted : 2010.05.03
  • Published : 2010.11.01
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Abstract

In this paper, emission analysis during cold start period of CVS-75 mode in LPG vehicle was performed to find out proper operating conditions of SAI(Secondary Air Injection) system. In order to meet SULEV target, the simulated emission system had a SAI system as well as a MCC(Manifold Catalytic Converter) and a UCC(Under body Catalytic Converter). Using commercial 1-D code AMESIM, in which 7 step global surface chemical reactions of Langmuir-Hinshelwood type were adopted, transient emission analysis in the exhaust system during cold start period of CVS-75 mode were carried out to figure out the effects of flow rate, duration of supply air on HC, CO, NO emission.

Keywords

References

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