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Effect of Operating Conditions on the Particulates from a Single Cylinder Diesel Engine
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Abstract
Particulates were collected from the exhaust of a single cylinder diesel engine at different speeds and fuel-air equivalence ratios. The filters were rated to capture 99.99% of all particulates >0.3 microns in diameter. Samples were taken at 1500 RPM and equivalence ratios varying from about 0.2 to 0.7, and at an equivalence ratio of about 0.3 and engine speeds varying from 1000 to 2500 RPM. A base point with an equivalence ratio of 0.3 with an engine speed of 1500 RPM was repeated several times to establish the expected test variation of the particulate data. The particulate properties investigated were the total mass of particulate produced per mass of fuel burned, the mass fraction of extractable organic material in the sample, and the mutagenic potency of the extract as measured by a bacterial bioassay.
Variation in fuel-air ratio (engine load) affected the particulate and extractable organic production much more than variations in engine speed. The ratio of mass of particulates produced was three to Four times higher at both high and low equivalence ratios, than in the equivalence ratio range between 0.3 and 0.6. At low equivalence ratios, the particulates had a soluable fraction approximately five times higher than mid-range. The soluable fraction decreased rapidly until the equivalence ratio reached 0.4 remaining relatively constant above that point. The mutagenic potency of the extract was constant across both speed and equivalence ratio ranges within the accuracy of the bioassay.
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Richard, H., Simpson, D., Andon, B., Thilly, W. et al., "Effect of Operating Conditions on the Particulates from a Single Cylinder Diesel Engine," SAE Technical Paper 830646, 1983, https://doi.org/10.4271/830646.Also In
References
- Amann C.A. et al. "Some Rudiments of Diesel Particulate Emissions" General Motors Research Pub. GMR-3115, General Motors Research Laboratory, Warren, MI 1979
- Anonymous: "Draft Test Procedure for Measurement of Gaseous and Particulate Emissions from Light-duty Diesel Vehicles" US EPA 1979
- Huisingh J. et al. "Application of Bioassay to the Characterization of Diesel Particulate Emissions" Presented at the Symposium on Application of Short Term Bioassays in the Fractionation and Analysis of Complex Environmental Mixtures Williamsburg, Virginia 1978
- Kaden, D.A. Hites, R.W. Thilly W.G. "Mutagenicity of Soot and Associated Polycyclic Aromatic Hydrocarbons to Salmonella typhimurium" MIT 1979
- Koehler D.E. Marshall: W.F. "Performance Characteristics of Automative Engines in the United States, Report 11, 3rd series" Department of Energy, Bartlesville Energy Technology Center; National Technical Information Service 1979
- Lipkea, W.H. Johnson, J.H. Vuk: C.T. "The Physical and Chemical Character of Diesel Particulate Emissions-Measurement Techniques and Fundimental Considerations" 780108 Society of Automotive Engineers 1979
- MacDonald, J.S. Plee, S.L. D'Arcy, J.B. Schreck: R.M. "Experimental Measurements of the Independent Effects of Dilution Ratio and Filter Temperature on Diesel Exhaust Particulate Samples" 800105 Society of Automotive Engineers 1980
- Siegla, D. Letter from General Motors Research Laboratory, containing time distribution of operating modes in Urban Driving Cycle for GM 5.7 1 diesel and results of chassis dynomometer tests 1979
- Skopek, T.R. Liber, H.L. Krowlewski, J.J. Thilly: W.G. "Quantitative Forward Mutation Assay in Salmonella typhimurium Using 8-Azaguanine Resistance as a Genetic Marker" Proc Natl Acad Sci USA 1978
- Skopek, T.R. Liber, H.L. Kaden, D.A. Thilly: W.G. "Relative Sensitivities of Forward and Reverse Mutation Assays in Salmonella typhimurium" Proc Natl Acad Sci USA 1978
- South Coast Technology, Inc. "Unregulated Diesel Emissions and Their Potential health Effects" Report published at US DOT Automotive Fuel Economy Contractors Coordination Meeting, Washington, DC 11 13 1978
- Vuk, C.T. Jones, M.A. Johnson: J.H. "The Measurement and Analysis of the Physical Character of Diesel Particulate Emissions." 760131 Society of Automotive Engineers 1976
- Liber H.L. Thilly: W.G. "Mutation Assay at the Thymidine Kinase Locus in Diploid Human Lymphoblasts" Mutation Research 94 467 485 1982