Journal of Hydrogen and New Energy (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

  1. DME Handbook, Japna DME Forum, 2006.
  2. Kazunari Kuwahara and Hiromitsu Ando, "Role of Heat Accumulation by Reaction Loop Initiated by H2O2 Decomposition for Thermal Ignition," SAE paper 2007-01-0908, 2007.
  3. Hiromitsu Ando, Yasuyuki Sakai and Kazunari Kuwahara, "Universal Rule of Hydrocarbon Oxidation," SAE paper 2009-01-0948, 2009.
  4. Adam B. Dempsey, N. Ryan Walker and Rolf Reitz, "Effect of Cetane Improvers on Gasoline, Ethanol, and Methanol Reactivity and the Implications for RCCI Combustion," SAE paper 2013-01-1678, 2013.
  5. Troels Dyhr Pedersen, Jesper Schramm and Tadanori Tanai and Toshio Sato, "Controlling the Heat Release in HCCI combustion of DME with Methanol and EGR," SAE paper 2010-01-1489, 2010.
  6. Zunqing Zheng, Mingfa Yao, Zheng Chen and NO Zhang, "Experimental Study on HCCI Combustion of Dimethyl Ether (DME)/Methanol Dual Fuel," SAE paper 2004-01-2993, 2004.
  7. Nilesh Bhana and Daniele Cipolat, "Opimization of the Performance of a Methanol/Dimethyl Ether Fuelled Compression Ignition Engine," SAE paper 2006-01-1986, 2006.
  8. Troels Dyhr Pedersen and Jesper Schramm, "A study on the effects of compression ratio, engine speed and equivalence ratio on HCCI combustion of DME," SAE paper 2007-01-1860, 2007.
  9. Pilling, M.J., "Low Temperature Combustion and Autoignition," Elsevir Science B.V., 1997, 24.
  10. Fischer, S.L., Dryer, F.L. and Curran, H.J., "The Reaction Kinetics of Dimethyle Ether I: High-Temeperature Pyrolysis and Oxidation in Flow Reactors," Int. J. Chem. Kinetics., 32, 713-740, 2000. https://doi.org/10.1002/1097-4601(2000)32:12<713::AID-KIN1>3.0.CO;2-9
  11. Troels Dyhr Pedersen, Doctoral Thesis of Technical Univ. of Denmark, "Homogeneous Charge Compression Ignition Combustion of Dimethyl Ether", 2007.
  12. Heywood, J.B., Internal Combustion Engine Fundamentals, McGraw-Hill, 1988.
  13. Curran, H. J., S. L. Fischer, and F. L. Dryer, "Dimethyl Ether Chemical kinetic mechanism," Lawrence Livermore National Laboratory, Livermore, 2000.
  14. J.A. Eng, "Characterization of Pressure Waves in HCCI Combustion," SAE paper 2002-01-2859, 2002.