Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
권호 표지

Experimental Study on the Macroscopic Spray Characteristics of DME Fuel

DME 연료의 거시적 분무특성에 관한 실험적 연구

  • 박정환 (한양대학교 대학원 기계공학과) ;
  • 박수한 (한양대학교 대학원 기계공학과) ;
  • 이창식 (한양대학교 기계공학부) ;
  • 박성욱 (한양대학교 기계공학부)
  • Received : 2010.08.02
  • Accepted : 2010.09.27
  • Published : 2010.09.30
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Abstract

The purpose of this study is to compare and to investigate spray characteristics of dimethyl ether (DME) and diesel fuel in the various injection pressures, ambient pressures, and the energizing durations. For the analysis of the spray characteristics, the spray visualization system including the high speed camera and the spray image analyzer is installed. The spray characteristics such as the spray development process, spray tip penetraion and the spray cone angle are analyzed from the spray images. It was revealed that the spray characteristics of DME and diesel fuels are mainly affected by the injection conditions. However, in the region after the end of the injection, the spray tip penetration was affected by the fuel properties such as the fuel density, the surface tension, and the viscosity. DME fuel has generally a short tip penetration and a wide cone angle. In the elevating conditions of the ambient gas pressure, the spray cone angle of DME fuel converged to high value when comparing diesel fuel in advance. Also, the increasing rate of the spray tip penetration in DME fuel is significantly decreased from 0.7 ms of the energizing duration (diesel : 0.9 ms).

Keywords

References

  1. C. Y. Choi and R. D. Reitz, "Modeling the Effects of Oxygenated Fuels and Split Injections on DI diesel Engine Performance and Emissions", Combustion Science and Technology, Vol. 159, 2000, pp.169-198. https://doi.org/10.1080/00102200008935782
  2. B. W. Moscherosch, C. J. Polonowski, S. A Miers, and J. D. Naber, "Combustion and emissions characteristics of soy methyl ester biodiesel blends in an automotive turbocharged diesel engine", Journal of Engineering for gas turbines and power, Vol. 132, 2010.
  3. S. H. Park, H. J. Kim, and C. S. Lee, "Effects of dimethyl ether (DME) Spray behavior in the cylinder on the combustion and exhaust emissions characteristics of a high speed diesel engine", Fuel Processing Technology, Vol. 91(5), 2010, pp. 504-513. https://doi.org/10.1016/j.fuproc.2009.12.013
  4. C. L. Genzale, L. M. Pickett and S. H. Kook, "Liquid Penetration of diesel and Biodiesel Sprays at Late- Cycle Post-Injection Conditions", SAE Technical Paper, 2010-01-0610, 2010.
  5. S. G. An, M. Y. Kim, S. H. Yoon, J. H. Lee and C. S. Lee, "Combustion and Exhaust Emission Characteristics of DME in a Common-rail diesel Engine", KSAE, Vol. 15, No. 2, 2007, pp.74-80.
  6. K. H. Park, M. Y. Kim, S. H. Yoon, J. W. Hwang and C. S. Lee, "Combustion Characteristics of Homogeneous Charge Compression Ignition Engine Fueled with DME", KSAE 07-S0089, 2007, pp.580-585.
  7. C. Arcoumanis, C. S. Bae, R. Crookes and E. Kinoshita, "The Potential Of Di-methyl Ether (DME) As and Alternative Fuel For Compression-Ignition Engines: A Review", Fuel 87, 2008, pp. 1014-1030. https://doi.org/10.1016/j.fuel.2007.06.007
  8. H. Teng, J. C. McCandless and J. B. Schneyer, "Thermodynamic Properties of Dimethyl Ether-An Alternative Fuel for Compression-Ignition Engines", SAE Technical Paper, 2004-01-0093, 2004.
  9. T. A. Semelsberger, T. L. Borup and H. L. Greene, "Dimethyl ether (DME) as an alternative fuel", Journal Of Power Sources 156, 2006, pp. 497-511. https://doi.org/10.1016/j.jpowsour.2005.05.082
  10. H. J. Kim, S. H. Park and C. S. Lee, "Effect of High Injection Pressure and Ambient Pressure on the DME Spray Characteristics Injection through a Common-rail diesel Injector", Journal of ILASS-KOREA, Vol 14, No. 2, 2009, pp 71-76.
  11. L. Jun, Y. Sato, and A. Noda, "An Experimental Study on DME Spray Characteristics and Evaporation Processes in a High Pressure Chamber", SAE Technical Paper, 2001-01-3635, 2001
  12. J. Yu, J. K. Lee and C. S. Bae, "Dimethyl Ether (DME) Spray Characteristics Compared to diesel in a Common- rail Fuel Injection System", SAE Technical Paper, 2002-01-2898, 2002.
  13. A. H. Lefebvre, "Atomization and sprays", 1989, pp.274, 279-281.
  14. B. W. Ryu, S. H. Bang, C. S. Lee, "A Study on the Injection and Spray Characteristics of Dimethyl Ether Fuel", KSAE07-S0099, 2007, pp.644-649.
  15. H. Hiroyasu, "Experimental and theoretical studies on the structure of fuel sprays in diesel engine", Proc. 5th International conference on liquid atomization and spray systems. pp.17-31, 1991.
  16. S. H. Park, H. J. Kim, C. S. Lee, "Macroscopic spray characteristics and breakup performance of dimethyl ether (DME) fuel at high fuel temperatures and ambient conditions", fuel, 2010.
  17. H. Hiroyasu and M. Arai, "Structures of Fuel Sprays in Diesel Engines", SAE Technical Paper, 900475, 1990.