Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Research of Natural Gas/Diesel Dual Fuel Vehicle

CRDI시스템을 갖는 천연가스/디젤 혼소차량의 개발에 대한 연구

  • Lee, Sang-Min (Institute of e-Vehicle Technology, University of Ulsan) ;
  • Lim, Ock-Taeck (Department of Mechanical Engineering, University of Ulsan)
  • 이상민 (울산대학교 자동차선박기술대학원) ;
  • 임옥택 (울산대학교 기계자동차공학부)
  • Received : 2011.06.21
  • Accepted : 2012.04.10
  • Published : 2012.09.01
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Abstract

This research is about the exhaust gas and driving performance test which are for CNG-Diesel dual fuel engine. The CNG-Diesel dual fuel engine converted from 2500cc diesel has two steps of injection systems; small amount of diesel is injected to mixture CNG in cylinder to ignite before CNG is injected into each intake manifold to form mixture. The amounts of output power and emission in duel fuel consumption were measured by engine dynamometer and exhaust gas analyzer. Over 90% of diesel consumption reduction, similar driving performance to current diesel engine and reduced emission on $CO_2$ and PM, respectively, were indicated through the measurements. The two steps of system were applied to vehicle to investigate exhaust gas characteristics and driving performance via NEDC mode and real driving test. Additional oxidation catalyst was applied to reduce emission on the test vehicle and the NEDC mode test showed the reduction of Co, $CO_2$, Pm and THC.

Keywords

References

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  1. Operating Characteristics of Dual-fuel Combustion with DME and Gasoline in a Compression Ignition Engine vol.22, pp.1, 2014, https://doi.org/10.7467/KSAE.2014.22.1.157