Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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PM Reduction Characteristics of Partial Metal DPF with Screen Mesh Filter Structure

스크린 필터 구조 Partial Metal DPF의 PM 저감 특성

  • Kim, Chunghui (Powertrain System R&D Center, Korea Automotive Technology Institute) ;
  • Kim, Hyunchul (Powertrain System R&D Center, Korea Automotive Technology Institute) ;
  • Lee, Geesoo (Powertrain System R&D Center, Korea Automotive Technology Institute) ;
  • Choi, Jeonghwang (CMC R&D Center, CMC Co. Ltd.) ;
  • Chon, Munsoo (Department of Energy System Engineering, Korea National University of Transportation) ;
  • Shin, Suk Shin (Graduate School of Mechanical Engineering, Chungnam National University) ;
  • Suh, Hyun Kyu (Division of Mechanical and Automotive Engineering, Kongju National University)
  • 김충희 (자동차부품연구원 동력시스템연구센터) ;
  • 김현철 (자동차부품연구원 동력시스템연구센터) ;
  • 이기수 (자동차부품연구원 동력시스템연구센터) ;
  • 최정황 (씨엠씨(주) 연구소) ;
  • 전문수 (한국교통대학교 에너지시스템공학과) ;
  • 신석신 (충남대학교 기계공학과) ;
  • 서현규 (공주대학교 기계자동차공학부)
  • Received : 2012.08.06
  • Accepted : 2012.11.09
  • Published : 2013.05.01
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Abstract

In this work, the 1L grade integrated metal DOC/DPF filter that can install in engine manifold position was developed to investigate the effect of platinum-coating amount of filter on the improvement of filter activation temperature and reduction of particulate matter (PM). This filter was installed in 2.9L CI engine which meets the EURO-4 emission regulation. Tests for PM reduction efficiency of filter were conducted under ND-13 mode with full-load test condition. It was revealed that the time to reach the activation temperature of metal filter ($280^{\circ}C$) was shorter as the amount of platinum-coating increased. This short activation time can be helpful for the reduction of CO and HC emissions during cold start condition. At the same time, PM reduced as the coating amount increased. The reduction percentage of $DOC_{40}$, $DOC_{20}$, and $DOC_0$ were 96.7% (2.34 mg/kW'h), 95.1% (3.47 mg/kW'h), and 94.5% (3.69 mg/kW'h) compared to previous result (71.4 mg/kW'h), respectively.

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References

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