한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제16권5호
  • /
  • Pages.84-91
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  • 2008
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

디젤 엔진에서 GTL(Gas to Liquid) 연료의 배출물 특성에 관한 연구

Emission Characteristics of GTL(Gas to Liquid) Fuel in Diesel Engine

  • Lee, Yong-Gyu (Korea Institute of Machinery and Materials) ;
  • Moon, Gun-Feel (Department of Clean Environmental System, University of Science & Technology) ;
  • Choi, Kyo-Nam (Korea Institute of Machinery and Materials) ;
  • Jeong, Dong-Soo (Korea Institute of Machinery and Materials) ;
  • Kim, Byoung-Jun (Department of Mechanical Engineering, Myongji University) ;
  • Cha, Kyung-Ok (Department of Mechanical Engineering, Myongji University)
  • 발행 : 2008.09.01
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초록

Due to increasing need for better emission characteristics and lower fuel consumption rate in automotive engines, alternative fuels are drawing more attentions recently. The GTL (gas to liquid) is the one of most favored candidates. In this study, emission characteristics are compared between diesel and GTL fuel in commercial 2.0 liter diesel engine and vehicle with CRDi(Common Rail Direct injection) system. The effects of injection timings on emission and fuel consumption rate are compared at various engine speeds and loads. Noticeable reduction in HC, CO and PM emissions are observed due to higher cetane number and low sulfur and aromatic contents in GTL. On the trade-off curve of NOx and PM(Particulate matter) GTL showed much more benefits than diesel, where about 30% of PM mass decreased at the same operating conditions. On CVS 75 mode test in vehicle, GTL showed an excellent emission enhancement, in which 50% of HC, 21% of PM, and 12% of NOx engine-out emissions are decreased compared to ULSD(Ultra low sulfur diesel) fuel.

키워드

참고문헌

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