한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제19권2호
  • /
  • Pages.142-147
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  • 2011
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

CNG/LPG Bi-fuel 승용차의 배출가스 특성

Exhaust Emissions Characteristics of Bi-fuel CNG/LPG Passenger Cars

  • 조종표 (한국에너지기술연구원 산업효율연구센터) ;
  • 이영재 (한국에너지기술연구원 산업효율연구센터) ;
  • 김강출 (한국에너지기술연구원 산업효율연구센터) ;
  • 권오석 (한국에너지기술연구원 산업효율연구센터)
  • Cho, Chong-Pyo (Industrial Energy Efficiency Research Center, Korea Institute of Energy Research) ;
  • Lee, Young-Jae (Industrial Energy Efficiency Research Center, Korea Institute of Energy Research) ;
  • Kim, Gang-Chul (Industrial Energy Efficiency Research Center, Korea Institute of Energy Research) ;
  • Kwon, Oh-Seuk (Industrial Energy Efficiency Research Center, Korea Institute of Energy Research)
  • 투고 : 2010.09.08
  • 심사 : 2010.10.04
  • 발행 : 2011.03.01
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초록

Compressed natural gas (CNG) is well known as one of the cleanest burning alternative fuels. Bi-fuel CNG vehicle can also run on gasoline or another fuel while dedicated natural gas vehicle is designed to run on natural gas only. Recently, increased attention has been focused on bi-fuel CNG/LPG taxi because of good fuel economy of CNG. A number of LPG taxis modified to CNG Bi-fuel vehicles are running in many cities. In this paper, the emissions characteristics of in-use passenger cars running on CNG and LPG were investigated. Chassis dynamometer test was used to measure exhaust emissions from an in-use fleet of 5 cars. Exhaust emissions were collected for CVS-75 driving mode. The test results showed that for CNG fuel mode, CO, $CO_2$ and NMHC emissions decreased to 9%, 12% and 14% respectively, and $CH_4$ and $NO_x$ emissions increased to 317% and 47% respectively.

키워드

참고문헌

  1. $CO_2$ Emission from Fuel Combustion, IEA, 2008.
  2. http://stat.mltm.go.kr/portal/jsp/cate/flist_view. jsp
  3. A. E. Catania, D. Misul, E. Spessa and A. Vassallo, "Analysis of Combustion Parameters and Their Relation to Operating Variables and Exhaust Emissions in an Upgraded Multivalve Bi-fuel CNG SI Engine," SAE 2004-01-0983, 2004.
  4. A. Stodart, I. Aitchison and J. Lapetz, "Emissions Performance of Bi-fuel CNG and Bi-fuel LPG Passenger Cars Using Sequential Multipoint Injection Systems," SAE 2001-01-1195, 2001.
  5. A. Shamekhi, N. Khatibzadeh, A. H. Shamekhi, "Performance and Emissions Characteristics Investigation of a Bi-fuel SI Engine Fuelled by CNG and Gasoline," Proceedings of ICES2006, ASME, pp.393-400, 2006.