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Diesel Engines and Their Particle Signatures
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English
Abstract
New instruments and techniques have made it possible to study particle morphology and composition to an extent not previously possible. The particulates in exhaust emissions and the particles resulting from engine wear are the two examples discussed in this presentation.
In order to identify physical and chemical characteristics of diesel engine exhaust particulates, specialized sampling and analytical methods are required. Some of the techniques and instrumentation are presented along with typical results of exhaust particulate analysis.
The particles of wear contained in engine lubricating oil provide information about wear mechanisms by utilizing new methods of analysis. The preparation of samples and the use of ferrography and scanning electron microscopy to analyze particle characteristics are illustrated as specific examples of wear analysis.
This lecture is based on the work of Dr. John H. Johnson and several graduate students at Michigan Technological University. Their work and help is gratefully acknowledged.
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Citation
Scofield, G., "Diesel Engines and Their Particle Signatures," SAE Technical Paper 780426, 1978, https://doi.org/10.4271/780426.Also In
References
- Frey J. W. Corn M. “Physical and Chemical Characteristics of Particulates in a Diesel Exhaust” American Industrial Hygiene Association Journal Sept. Oct. 1967
- Vuk C.T. “The Development and Application of Techniques for the Measurement and Analysis of Diesel Particulate Emissions” Michigan Technological University 1975
- Jones M. A. “The Effect of Engine Load and Speed on the Physical Characteristics of Diesel Particulate Emissions” Michigan Technological University 1975
- Vuk C. T. Jones M. A. Johnson J. H. “The Measurement and Analysis of the Physical Character of Diesel Particulate Emissions” SAE Paper No. 760131 1976
- Perez J. M. Landen E. W. “Exhaust Emission Characteristics of Precombustion Chamber Engines” SAE Paper No. 680421 1968
- Scott D. Seifert W. W. Westcott V. C. “Ferrography - An Advanced Design Aid for the 80's” WEAR 34 1975 251 260
- Reda A. A. Bowen R. Westcott V. C. “Characteristics of Particles Generated at the Interface Between Sliding Steel Surfaces” WEAR 34 1975 261 273
- Scott D. Seifert W. W. Westcott V. C. “The Particles of Wear” Scientific American May 1974 230 5 88 97
- Bolis D. A. “The Effect of Oil and Coolant Temperatures on Diesel Engine Specific Fuel Consumption and Wear” Michigan Technological University 1976
- Bolis D. A. Johnson J. H. Daavettila D. A. “The Effect of Oil and Coolant Temperature on Diesel Engine Wear” SAE Paper No. 770086 1977
- Hofman M. V. Johnson J. H. “The Development of Ferrography as a Laboratory Wear Measurement Method for the Study of Engine Operating Conditions on Diesel Engine Wear” WEAR Michigan Technological University 1977
- Bolis D. A. Johnson J. H. Callen R. W. “A Study of the Effect of Oil and Coolant Temperature on Diesel Engine Brake Specific Fuel Consumption” SAE Paper No. 770313 1977 Department of Mechanical Engineering and Engineering Mechanics at Michigan Technological University Houghton, Michigan