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Fuel Droplet Size Measurements in the Combustion Chamber of a Motored SI Engine via Laser Mie Scattering
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English
Abstract
An experimental study was made of the time and space resolved measurements of the diameter of the fuel droplets inside the combustion chamber which were resultant from the timed injection of liquid fuel into the intake port of a motored automotive spark ignition engine. The determination of the individual droplet diameter during the intake and the compression strokes was based on the intensity of the light scattered from the droplet which was subjected to the monochromatic irradiation of He-Ne laser with uniform intensity profile. A theoretical analysis was also done to simulate the evaporation history of a fuel droplet subjected to the highly transient environments in the combustion chamber of the engine. The results showed that the droplets survived at the last stage of the compression stroke while their diameters decreased with crank angle elapsed due to evaporation. The effects of engine parameters on the droplet diameter were extensively discussed.
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Authors
- Toshikazu Kadota - Department of Mechanical Engineering, Hiroshima University Higashihiroshima, Japan
- Shuhji Mizutani - Department of Mechanical Engineering, Hiroshima University Higashihiroshima, Japan
- Chinn-Yuan Wu - Department of Mechanical Engineering, Hiroshima University Higashihiroshima, Japan
- Mitsunori Hoshino - Department of Mechanical Engineering, Hiroshima University Higashihiroshima, Japan
Citation
Kadota, T., Mizutani, S., Wu, C., and Hoshino, M., "Fuel Droplet Size Measurements in the Combustion Chamber of a Motored SI Engine via Laser Mie Scattering," SAE Technical Paper 900477, 1990, https://doi.org/10.4271/900477.Also In
References
- Nakajima Y. Saito T. Takagi Y. Katoh K. Iijima T. “The Influence of Fuel Characteristics on Vaporization in S.I. Engine Cylinder during Cranking at Low Temperature” SAE Paper 780612 1978
- Ayusawa T. Nemoto T. Koo Y. Jo S. H. “Relationship between Local Air-Fuel Ratio and Combustion Characteristics in Spark Ignition Engine” SAE Paper 780147 1978
- Quader A. A. “The Axially-Stratified-Charge Engine” SAE Paper 820131 1982
- Matsui K. Tanaka T. Ohigashi S. “Measurement of Local Mixture Strength at Spark Gap of S.I. Engine” SAE Paper 790483 1979
- Peters B. D. “Fuel Droplets inside the Cylinders of a Spark Ignition Engine with Axial Stratification” SAE Paper 820131 1982
- Peters B. D. “Laser Video Imaging and Measurements of Fuel Droplets in a Spark Ignition Engine” Paper C81/83 Conference on Combustion in Engineering IME Oxford, England April 11-14 1983
- Liu X. Q. Wang C. H. Law C. K. “Simulation of Fuel Droplet Gasification in SI Engine” Trans. ASME, J. Eng. for Gas Turbines and Power 106 849 853 1984
- Kadota T. Arase T. Sumida O. “The Behavior of Liquid Fuel Droplets in the Combustion Chamber of a Spark Ignition Engine (Droplet Size Measurements under Stationary Flow Test Conditions)” Trans. Japan Soc. Mech. Eng. 55 510 552 557 1989
- Kadota T. “The Application of Laser Rayleigh Scattering to the Local Mixture Strength Measurements in SI Engine during Intake Stroke” SAE Paper 872151 1987
- Kadota T. Zhao F. Q. Tsuzaki H. “Laser Rayleigh Scattering Measurements of the Fuel Vapor Concentration in the Combustion Chamber of SI Engine” Paper presented at The 5th Int. Pacific Conf. Auto. Eng. Beijing, China November 5-11 1989
- Kadota T. Zhao F. Q. Miyoshi K. “Rayleigh Scattering Measurements of Transient Fuel Vapor Concentration in a Motored Spark Ignition Engine” Paper to be presented at The 1990 SAE Int. Congress and Exposition Detroit, Michigan February 26 March 2 1990
- Peters B. D. Quader A. A. “Wetting the Appetite of Spark Ignition Engines for Lean Combustion” SAE Paper 780234 1978
- Burgoyne J. H. Cohen L. “The Effect of Droplet Size on Flame Propagation in Liquid Aerosols” Proc. Roy. Soc. A. 225 375 392 1954
- Subba H. N. “Ignition of Kerosene Fuel Sprays in a Flowing Air Stream” Combust. Sci. Tech. 8 95 100 1973
- Mizutani Y. Nakajima A. “Combustion of Fuel Vapor-Drop-Air Systems: Part 1- Open Burner Flames” Combust. Flame 21 343 350 1973
- Mizutani Y. Nakajima A. “Combustion of Fuel Vapor-Drop-Air Systems: Part 2- Spherical Flames in a Vessel” Combust. Flame 21 351 357 1973
- Polymeropoulos C. E. Das S. “The Effect of Droplet Size on the Burning Velocity of Kerosene-Air Sprays” Combust. Flame 25 247 257 1975
- Rao K. V. L. Lefebvre A. H. “Minimum Ignition Energies in Flowing Kerosene-Air Mixtures” Combust. Flame 27 1 20 1976
- Hayashi S. Kumagai S. Sakai T. “Propagation Velocity and Structure in Droplet-Air Mixtures” Combust. Sci. Tech. 15 169 177 1976
- Ballal D. R. Lefebvre A. H. “Flame Propagation in Heterogeneous Mixtures of Fuel Droplets, Fuel Vapor and Air” Proc. 18th Symp. (Int.) Combustion 321 328 1981
- Polymeropoulos C. “Flame Propagation in Aerosols of Fuel Droplets, Fuel Vapor and Air” Combust. Sci. Tech. 40 217 232 1984
- Aggarwal S. K. Sirignano W. A. “Unsteady Spray Flame Propagation in a Closed Volume” Combust. Flame 62 69 84 1985
- Kerker M. “The Scattering of light” Academic Press New York 1969
- Shimizu I. “Photo- Electrical Measurement of Particle Size, Number Density and Velocity of Particles in Liquid Jets” Proc. 1st Int. Conf. on Liquid Atomization and Spray Systems Tokyo 309 316 1978
- Yule A. J. Ereaut P. R. Ungut A. “Droplet Sizes and Velocities in Vaporizing Sprays” Combust. Flame 54 15 22 1983
- Grehan G. Gouesbet G. “Simultaneous Measurements of Velocities and Sizes of Particles in Flows Using a Combined System Incorporating a Top-hat Beam Technique” Appl. Opt. 25 19 3527 3538 1986
- Kadota T. Hiroyasu H. “Evaporation of a Single Droplet at Elevated Pressures and Temperatures( 2nd Report, Theoretical Study )” Bull. Japan. Soc. Mech. Eng. 19 138 1515 1521 1976
- Ranz W. E. Marshall R. W. Jr. “Evaporation of Drops Part 1, Part 2” Chem. Eng. Prog. 48 3 141 146 1952 48 4 173 180 1952
- Law K. “Recent Advances in Droplet Vaporization and Combustion” Prog. Energy Combust. Sci. 8 171 201 1982
- Hiroyasu H. Kadota T. Senda T. Imamoto T. “On the Evaporation of a Single Droplet in High Pressure and High Temperature Gaseous Environments (Part 1. Experimental Study)” Heat Transfer Japanese Research 5 1 50 68 1976
- Kadowaki K. Hohsho Y. Kadota T. Matsumoto H. “Evaporation of a Single Droplet in Vacuum Pressure” Bull. Faculty of Eng. Hiroshima Univ. 32 2 97 102 1984
- Hohsho Y. Kadota T. Kadowaki K. Makino K. Kotera S. “Evaporation of a Group of Droplets under Subatmospheric Pressure” Bull. Japan Soc. Mech. Eng. 29 255 3021 3027 1986