Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Computational Study on DME HCCI Combustions Characteristics with Methanol Concentrations

DME HCCI 운전조건에서 Methanol 분율에 따른 HCCI엔진연소 특성에 관한 수치해석적 연구

  • Lee, Hyowon (Graduate of Institute of Mechanical Engineering, Ulsan University) ;
  • Lim, Ocktaeck (Department of Mechanical Engineering, Ulsan University) ;
  • Park, Kyuyeol (Department of Mechanical Engineering, Ulsan University) ;
  • Cho, Wonjun (DME Technology Research Center, KOGAS R&D Division) ;
  • Baek, Youngsoon (DME Technology Research Center, KOGAS R&D Division)
  • 이효원 (울산대학교 기계공학과 대학원) ;
  • 임옥택 (울산대학교 기계공학부) ;
  • 박규열 (울산대학교 기계공학부) ;
  • 조원준 (한국가스공사 연구개발원 DME기술연구센터) ;
  • 백영순 (한국가스공사 연구개발원 DME기술연구센터)
  • Received : 2013.10.30
  • Accepted : 2014.02.28
  • Published : 2014.02.28
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Abstract

In Dimethyl Ether (DME) indirect production processes, DME have a reforming process to separate Methanol. DME has a high cetane number and Methanol has a high octane number. Each fuel has a different combustion characteristics and reactivity. So, this paper was investigated on the combustion characterisitics of DME and Methanol. Basically, Methanol has a effect of retarding ignition. However, Within 10% of total carbon mole number in DME, Methanol slightly changed the onset timing of Low Temperature Reaction (LTR) with increasing thermal-ignition preparation range. It means that controlling combustion phasing of DME can be possible without eliminated LTR. In case of IMEP, the ranges.

Keywords

References

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