Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

An Analysis on Structure of Impinging and Free Diesel Spray with Exciplex Fluorescence Method in High Temperature and Pressure Field

  • Published : 2005.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Because an injected spray development process consists of impinging and free spray in the diesel engine, it is needed to analyze the impinging spray and free spray, simultaneously, in order to study the diesel spray behavior. To dominate combustion characteristics in diesel engine is interaction between injected fuel and ambient gas, that is, process of mixture formation. Also it is very important to analyze liquid and vapor phases of injected fuel on the investigation of mixing process, respectively and simultaneously. Therefore, in this study, the behavior characteristics of the liquid phase and the vapor phase of diesel spray was studied by using exciplex fluorescence method in high temperature and injection pressure field. Finally, it can be confirmed that the distribution of vapor concentration is more uniform in the case of the high injection than in that of the low injection pressure.

Keywords

References

  1. Baritaud, T. A., Heinze, T. A. and LeCoz, J. F., 1994, 'Spray and Self-Ignition Visualization in a DI Diesel Engine,' SAE Paper, No. 940681
  2. Choi, S. H., Jeon, C. H. and Chang, Y. J., 2002, 'Steady- Flow Characteristics and Its Influence on Spray for Direct Injection Diesel Engine,' KSME International Journal, Vol. 16, No. 7
  3. Dan, T., Takagishi, S., Oishi N., Senda J. and Fujimoto, H., 1996, 'The Study of the Spray Structure in the High Injection Pressre,' JSME 62-597, pp. 2079-2085
  4. Dan, T., Takagishi, S., Send a, J. and Fujimoto, H., 1997, 'Organized Structure and Motion in Diesel Spray,' SAE Paper, No. 970641
  5. Espey, C., Dec, J. E., Litzinger, T. A. and Santavicca, D. A., 1994, 'Quantitative 2-D Fuel Vapor Concentration Imaging in a Firing D.I. Diesel Engine Using Planar Laser-Induced Rayleigh Scattering,' SAE Paper, No. 940682
  6. Espey, C. and Dec, J. E., 1995, 'The Effect of TDC Temperature and Density on the Liquid-Phase Fuel Penetration in a D.I. Diesel Engine,' SAE Paper, No. 952456
  7. 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
  8. 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
  9. Katsura, N., Saito, M., Senda, J. and Fujimoto, H., 1989, 'Characteristics of a Diesel Spray Impinging a Flat Wall,' SAE Trans., Vol. 98, No. 890264
  10. Lee, J. K., Kang, S. J. and Rho, B. J., 2003, 'Atomization Characteristics of Intermittent Multi-Hole Diesel Spray Using Time-Resolved PDPA Data,' KSME International Journal, Vol. 17, No. 5
  11. Melton, L.A., 1983, 'Spectrally Separated Fluorescence Emissions for Diesel Fuel Droplets and Vapor,' Applied Optics, Vol. 22, No. 14, pp. 2224-2226 https://doi.org/10.1364/AO.22.002224
  12. Senda, J., Fukami, Y., Tanabe, Y. and Fujimoto, H., 1992, 'Visualization of Evaporative Diesel Spray Impinging upon Wall Surface by Exciplex Fluorescence Method,' SAE Paper, No. 920578
  13. Senda, J., Kanda. T., Kobayashi, M. and Fujimoto, H., 1997, 'Quantitative Analysis of Fuel Vapor Concentration in Diesel Spray by Exciplex Fluorescence Method,' SAE Paper, No. 970796
  14. Senda, J., Kobayashi, M., Tanabe, Y. and Fujimoto, H., 1994, 'Visualization and Quantitative Analysis on Fuel Vapor Concentration in Diesel Spray,' JASE Review, Vol. 15, No. 4, pp. 149-156 https://doi.org/10.1016/0389-4304(94)90025-6
  15. Senda, J., Kobayashi M., Iwashita, S. and Fujimoto, H., 1994, 'Modeling on Diesel Spray Impinging on Flat Wall,' Proc. COMODIA94, pp. 411-416
  16. Senda, J., Kobayashi M., Iwashita, S. and Fujimoto, H., 1994, 'Modeling of Diesel Spray Impingement on a Flat Wall,' SAE Paper, No. 941894
  17. Senda, J., Tanabe, Y. and Fujimoto, H., 1996, 'Visualization and Quantitative Analysis on Fuel Vapor Concentration in Diesel Spray,' Unsteady Combustion (Kluwer Academic Pub.), pp. 283-294