This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of Fuel Aromatic Structure and Content on Direct Injection Diesel Engine Particulates
Annotation ability available
Sector:
Language:
English
Abstract
A single cylinder, Cummins NH, direct-injection, diesel engine has been operated in order to evaluate the effects of aromatic content and aromatic structure on diesel engine particulates. Results from three fuels are shown. The first fuel, a low sulfur Chevron diesel fuel was used as a base fuel for comparison. The other fuels consisted of the base fuel and 10% by volume of 1-2-3-4 tetrahydronaphthalene (tetralin) a single-ring aromatic and naphthalene, a double-ring aromatic. The fuels were chosen to vary aromatic content and structure while minimizing differences in boiling points and cetane number. Measurements included exhaust particulates using a mini-dilution tunnel, exhaust emissions including THC, CO2, NO/NOx, O2, injection timing, two-color radiation, soluble organic fraction, and cylinder pressure. Particulate measurements were found to be sensitive to temperature and flow conditions in the mini-dilution tunnel and exhaust system. Repeatable results were only obtained after a set procedure for warm-up and run time were followed which consisted of approximately 1 hour to reach steady state and 25 minutes of sampling. At an engine condition where premix burn fraction was the same for each fuel, particulate measurements showed an increase of 9% for the tetralin doped fuel in comparison to the baseline and naphthalene fuels that were the same.
Recommended Content
Authors
Topic
Citation
Fukuda, M., Tree, D., Foster, D., and Suhre, B., "The Effect of Fuel Aromatic Structure and Content on Direct Injection Diesel Engine Particulates," SAE Technical Paper 920110, 1992, https://doi.org/10.4271/920110.Also In
References
- Barry, E. G. McCabe L. J. Gerke D. H. Perez J. M. 1985 “Heavy-Duty Diesel Engine/Fuels Combustion Performance and Emissions - A Cooperative Research Program,” SAE Paper No. 852078
- Beckhoven, L. C. 1991 “Effects of Fuel Properties on Diesel Engine Emissions - A Review of Information Available to the EEC-MVEG Group,” SAE Paper 910608
- Burley, H. A. Rosebrock T. K. 1979 “Automotive Diesel Engines - Fuel Composition vs. Particulates,” SAE Paper 790923
- Bykowski, B. B. Bains T. M. 1982 “Effects of Alternate Source Diesel Fuels on Light-Duty Diesel Emissions,” SAE Paper 820771
- Cunningham, L. J. Henly T. J. Kulinowski A. M. 1990 “The Effects of Diesel Ignition Improvers in Low Sulfur Fuels on Heavy-Duty Diesel Emissions,” SAE Paper 902173
- Flanigan, C. T. Litzinger T. A. Graves R. L. 1989 “The Effect of Aromatics and Cycloparaffins on DI Diesel Emissions,” SAE Paper 892130
- Hara, H. S. Glassman I. 1988 “Soot Formation in Diffusion Flames of Fuel/Oxygen Mixture,” Twenty- Second Symposium (International) on Combustion, The Combustion Institute.
- Hooker, W. J. 1959 Seventh Symposium (International) on Combustion, The Combustion Institute Oxford Press 949
- Matsui, Y. Komimoto T. Matsuoka S. 1982 “Formation and Oxidation Processes of Soot Particulates in a D.I. Diesel Engine - An Experimental Study via the Two-Color Method,” SAE Paper 840464
- MacDonald, J. S. Plee S. L. D'Arcy J. B. Schreck R. M. 1980 “Experimental Measurements of the Independent Effects of Dilution Ratio and Filter Temperature on Diesel Exhaust Particulate Samples,” SAE Paper No. 800185
- Ng, H. K. K. 1985 “In-Cylinder Flame Temperature, Radiance and Pressure Measurements of Diesel Combustion to Study the Fuel Molecular Structure Effects on Particulates,” University of Wisconsin-Madison
- Palmer, H. B. Cullis C. F. 1965 “The Formation of Carbon From Gases,” Chemistry and Physics of Carbon Walker, P. L. 1 265 325
- Springer, K. J. 1989 “Low-Emission Diesel Fuel for 1991-1994,” ASME Trans. GT & Power 111 361
- Wall, J. C. Hoekman S. K. 1984 “Fuel Composition Effects on Heavy-Duty Diesel Particulate Emissions,” SAE Paper No. 841364
- Yan, J. Borman G. L. 1988 “Analysis and In-cylinder Measurement of Particulate Radiant Emissions and Temperature in a Direct Injection Diesel Engine,” SAE Paper No. 881315