Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

A Study on the Behavior Characteristics of Diesel Spray by Using a High Pressure Injection System with Common Rail Apparatus

  • Yeom, Jeong-Kuk (Department of Automotive Engineering, Silla University) ;
  • Hajime Fujimoto (Department of Mechanical Engineering, Doshisha University)
  • Published : 2003.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

The effects of change in injection pressure on spray structure in high temperature and pressure field have been investigated. The analysis of liquid and vapor phases of injected fuel is important for emissions control of diesel engines. Therefore, this work examines the evaporating spray structure using a constant volume vessel. The injection pressure is selected as the experimental parameter, is changed from 22 MPa to 112 MPa using a high pressure injection system (ECD-U2). Also, we conducted simulation study by modified KIVA-II code. The results of simulation study are compared with experimental results. The images of liquid and vapor phase for free spray were simultaneously taken by exciplex fluorescence method. As experimental results, the vapor concentration of injected fuel is leaner due to the increase of atomization in the case of the high injection pressure than in that of the low injection pressure. The calculated results obtained by modified KIVA-II code show good agreements with experimental results.

Keywords

References

  1. Amsden, A A., Ramshow, J. D., O'Rourke, P. J. and Dukowiez, J. K., 1985, 'KIVA: A Computer Program for Two- and Three-Dimensional Fluid Flows with Chemical Reactions and Fuel Sprays,' Los Alamos National Laboratory Report LA-10254-MS
  2. Amsden, A. A., O'Rourke, P. J. and Butler, T. D., 1989, 'KIVA-II: A Computer Program for Chemically Reactive Flows and Sprays,' Los Alamos National Laboratory Report LA-11560MS
  3. Amsden, A. A., 1993, 'KIVA-3: A KIVA Program with Block-Structured Mesh for Complex Geometries,' Los Alamos National Laboratory Report LA-12503-MS
  4. Amsden, A. A., 1997, 'KIVA-3V: A BlockStructured KIVA Program for Engines with Vertical or Canted Valves,' Los Alamos National Laboratory Report LA-13313-MS
  5. Baritaud, T. A, Heinze, T. A. and Le Coz, J. F., 1994, 'Spray and Self-Ignition Visualization in a D.I. Diesel Engine,' SAE Paper, No. 940681
  6. Dan, T., Takagishi, S., Senda, J. and Fujimoto, H., 1997, 'Organized Structure and Motion in Diesel Spray,' SAE Paper, No. 970641
  7. Dan, T., Takagishi, S., Oishi N., Send a J. and Fujimoto, H., 1996a, 'The Study of the Spray Structure in the High Injection Pressre,' JSME 62-597, pp.2079-2085, (in Japanese)
  8. Dan, T., Takagishi, S., Oishi N., Senda J. and Fujimoto, H., 1996b, 'The Effect of Ambient Density on the Spray Structure,' JSME 62-599. pp. 2867-2083, (in Japanese) https://doi.org/10.1299/kikaib.62.2867
  9. Espey, C., Dec, J. E., Litzinger, T. A. and Santavicca, D. A., 1997, 'Planar Laser Rayleigh Scattering for Quantitative Vapor-Fuel Imaging in a Diesel Jet,' COMBUSTION AND FLAME, 109: 65-86, pp. 65-86 https://doi.org/10.1016/S0010-2180(96)00126-5
  10. Hiroyasu, H. and Arai, M., 1980, 'Fuel Spray Penetration and Spray Angle in Diesel Engines,' JSAE, No. 21, pp. 5-11, (in Japanese)
  11. Hodges, J. T., Baritaud, T. A. and Heinze, T. A., 1991, 'Planar Liquid and Gas Fuel and Droplet Size Visualization in a DI Diesel Engine,' SAE Paper, No. 910726
  12. O'Rourke, P. J. and Amsden, A. A., 1987, 'The TAB Method for Numerical Calculation of Spray Drop Breakup,' SAE Paper, No. 872089
  13. Senda, J., Kanda, T., Al-Roub, M., Farrell, P. V., Fukami, T. and Fujimoto, H., 1997, 'Modeling Spray Impingement Considering Fuel Film Formation on the Wall,' SAE Paper, No. 970047
  14. Wakuri, Y., Fujii M., Amitani, T. and Tsuneya R., 1959, 'Studies on the Penetration of Fuel Spray of Diesel Engine,' JSME (part2), Vol. 52, No. 156, pp.820-826, (in Japanese)
  15. Yeom, J. K., Kang, B. M., Lee, M. J., Chung, S. S., Ha, J. Y. and Fujimoto, H., 2002, 'A Study on the Mixture Formation Process of Evaporating Diesel Spray by Offset Incidence Laser Beam,' KSME International Journal, Vol. 16, No. 12, pp. 1702 -1709
  16. JSME v.52 no.156 Studies on the Penetration of Fuel Spray of Diesel Engine Wakuri,Y.;Fujii,M.;Amitani,T.;Tsuneya,R.
  17. KSME International Journal v.16 no.12 A Study on the Mixture Formation Process of Evaporating Diesel Spray by Offset Incidence Laser Beam Yeom,J.Y.;Kang,B.M.;Lee,M.J.;Chung,S.S.;Ha,J.Y.;Fujimoto,H. https://doi.org/10.1007/BF03021672