This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Planar Laser Light Scattering for the In-Cylinder Study of Soot in a Diesel Engine
Annotation ability available
Sector:
Language:
English
Abstract
A study has been experimentally conducted in an optically-accessible DI Diesel engine operating on 50/50 mixture of iso-octane and tetradecane to evaluate a planar laser light scattering technique for the in-cylinder study of soot. Two simultaneous images, taken with vertically and horizontally polarized scattered light, were used to determine the polarization ratio, CHH/CW. This magnitude of the polarization ratio was employed to distinguish soot particles from fuel droplets. The spatial and temporal variations of soot during the combustion cycle were investigated with images taken at various crank angles and swirl levels at three different planes in the combustion bowl. For the high swirl case, soot was uniformly distributed in the combustion bowl. For the non-swirl case, however, soot was mainly observed near the wall and at the top plane, and was observed to exist later into the expansion stroke. These results were consistent with combustion photography results from earlier work and provided improved spatial information and temporal resolution. The major limitations of this technique are the soot deposition on the window and multiple scattering from the fuel droplets during the fuel injection period.
Recommended Content
Authors
Topic
Citation
Lee, W., Solbrig, C., Litzinger, T., and Santoro, R., "Planar Laser Light Scattering for the In-Cylinder Study of Soot in a Diesel Engine," SAE Technical Paper 902125, 1990, https://doi.org/10.4271/902125.Also In
References
- Richards, R. R. Sibley, J. E. “Diesel Engine Emissions Control for the 1990's,” SAE Paper 880346 1988
- Chan, T. T. Borman, G. L. “An Experimental Study of Swirl and EGR Effects on Diesel Combustion by Use of the Dumping Method,” SAE Paper 820359 1982
- Norris-Jones, S. R. Hollis, T. Waterhouse, C. N. F. “A Study of the Formation of Particulates in the Cylinder of a Direct Injection Diesel Engine,” SAE Paper 840419 1984
- Aoyage, Y. Kamimoto, R. Matsue, Y. Matsuoka, “A Gas Sampling Study on the Formation of Soot and NO in a DI Diesel Engine,” SAE Paper 800254 1980
- Kittleson, D. B. Pipho, M. J. Ambs, J. L. Luo, L. “In-cylinder Measurements of Soot Production in a Direct-Injection Diesel Engine,” SAE Paper 880344 1988
- Hanson, R. K. “Combustion Diagnostics: Planar Imaging Techniques,” Twenty-first Symposium (international) on Combustion 1677 1691 The Combustion Institute 1986
- Beretta, F. Cavaliere, A. Ciajolo, A. D'Alessio, A. Langella, C. DiLorenzo A. Noviello, C. “Laser Light Scattering, Emission/Extinction Spectroscopy and Thermogravimetric Analysis in the Study of Soot Behavior in Oil Spray Flames,” Eighteenth Symposium (international) on Combustion 1091 1096 The Combustion Institute 1981
- Bonczyk, P. A. Sangiovanni, J. J. “Optical and Probe Measurements of Soot in a Burning Fuel Droplet Stream,” Comb. Sci. Tech. 36 135 147 1984
- Cavaliere, A. Ragucci, R. D'Alessio, A. Noviello, C. “Analysis of Diesel Sprays Through Two-Dimensional Laser Light Scattering,” Twenty-second Symposium (International) on Combustion 1973 1982 The Combustion Institute 1988
- Lee, W. Ryan, H. M. Strakey, P. A. Santoro, R. J. “The application of Two-Dimensional Imaging Techniques for Soot and Droplet Studies” The Symposium on Heat and Mass Transfer in Fire and Combustion Systems, ASME Winter Annual Meeting 1990
- Beretta, F. Cavaliere, A. D'Alessio, A. “Drop Size and Concentration in a Spray by Sideward Laser Light Scattering Measurements,” Comb. Sci. Tech 36 19 37 1984
- Bachalo, W. D. Houser, M. J. “Phase/Doppler spray analyzer for simultaneous measurements of drop size and velocity distributions,” Optical Engineering 23 583 590 1984
- Presser, C. Santoro, R. J. Semerjian, H. G. Gupta, A. K. “Velocity and Droplet Size Measurements in a Fuel Spray,” AIAA 24th Aerospace Sciences Meeting, Paper AIAA-86-0297 January 6-9 1986 Reno, Nevada
- Dobbins, R. A. Santoro, R. J. Semerjian, H. G. “Interpretation of Optical Measurements of Soot in Flames” In Combustion Diagnostics by Nonintrusive Methods McCoy T. D. Roux J. A. Progress in Astronautics and Aeronautics 92 208 237 1984
- Santoro, R. J. Semerjian, H. G. Dobbins, R. A. “Soot Particle Measurements in Diffusion Flames,” Comb. and Flame 52 203 218 1983
- Dalzell, W. H. Sarofim, A. “Optical Constants of Soot and Their Application to Heat Flux Calculations,” J. of Heat Transfer, Transactions of the American Society of Mechanical Engineers 91 100 104 1969
- CRC Handbook of Chemistry and Physics 64th CRC Press, Inc Boca Raton, Florida 1983
- Arold, M. L. Espey, C. Litzinger, T. A. Santavicca, D. A. Santoro, R. J. “A Study of Non-Swirling and Swirling Flow Fields and Their Effects on Spray and Combustion in an Optically-Accessible, DI Diesel Engine,” SAE Paper 900396 1990
- East Kodak Company “KODAK T-MAX Professional Films,” KODAK Publication 1988
- Solbrig, C. E. Litzinger, T. A. “The Effect of Intake Charge Temperature on Combustion and Emissions in an Optically Accessible DI Diesel Engine with and without Swirl,” 1990 SAE International Fuels & Lubricants Meeting & Exposition 1990