Characteristics Analysis of Exhaust Emission according to Fuels at CVS-75 Mode

CVS-75모드에서 사용연료에 따른 배출가스 특성분석

  • Han, Sung-Bin (Department of Mechanical & Automotive Engineering, Induk Institute of Technology) ;
  • Kim, Yong-Tae (Vehicle Research and Development Center, Korea Automotive Technology Institute) ;
  • Lee, Ho-Kil (Vehicle Research and Development Center, Korea Automotive Technology Institute) ;
  • Kang, Jung-Ho (Vehicle Research and Development Center, Korea Automotive Technology Institute) ;
  • Jeong, Jae-U (Vehicle Research and Development Center, Korea Automotive Technology Institute) ;
  • Chun, Yon-Jong (Department of Automotive Engineering, Daegue Mirae College)
  • 한성빈 (인덕대학 기계자동차) ;
  • 김용태 (자동차부품 연구원 동력시스템연구센터) ;
  • 이호길 (자동차부품 연구원 동력시스템연구센터) ;
  • 강정호 (자동차부품 연구원 동력시스템연구센터) ;
  • 정재우 (자동차부품 연구원 동력시스템연구센터) ;
  • 정연종 (대구미래대학 자동차과)
  • Published : 2009.02.28

Abstract

The regulations for exhaust emission from vehicles have become much more stringent in recent years. These more stringent regulations require vehicle manufacturers to develop alternative fuels that reduce exhaust emission. This research is to analyze the characteristics of exhaust gas emission of same level vehicles that use gasoline, diesel, and LPG fuels. As for the test mode, we used the CVS-75 mode, which is the driving mode of the current domestic and North American emissions. The characteristics of the exhaust gas emitted under this driving condition was studied. We examined the emissions of THC, CO, and NOx of vehicles that use gasoline, diesel, and LPG fuels. As a result, vehicle exhaust gas emissions increased 9.8 % for vehicles using gasoline and it decreased 12.2 % for diesel-powered vehicles compared to vehicles using LPG fuel. Using gasoline and LPG fuel in the CVS-mode, over 80 % of THC and CO emission was produced for the cold start Phase 1.

자동차로부터 배출되는 배출가스의 규제가 최근 더욱 강화되고 있다. 이러한 엄격해지는 규제는 배출가스를 줄이는 대체연료의 개발에 더욱 박차를 가하게 된다. 본 연구는 가솔린, 디젤, LPG 연료를 사용하는 동급의 자동차를 이용하여 배출가스의 특성을 분석 비교하였다. 테스트 모드로는 최근 국내와 북미 배출가스의 주행모드로 사용되는 CVS-75모드를 사용하였다. 배기 특성은 주행조건에 하에서 연구되어졌다. 사용연료인 가솔린, 디젤, LPG연료에 따라 THC, CO, NOx의 배출가스의 특성을 연구했다. 연구결과, LPG연료에 비해 가솔린자동차가 9.8%의 배출가스 감소, 디젤자동차는 12.2% 증가를 나타냈다. 또한 CVS모드에서 가솔린과 LPG는 phase 1의 냉간시동구간에서 THC와 CO는 80%이상을 나타낸다.

Keywords

References

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