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Effects of Structure and Boiling Point of Oxygenated Blending Compounds in Reducing Diesel Emissions
Technical Paper
1999-01-1475
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Experiments were performed in an optically-accessible DI Diesel engine to investigate the effects of the addition of oxygenated blending compounds to Diesel fuel. The focus of the study was to determine how the structure and boiling point of the oxygenating compounds affect the emissions of NOx and soot. NOx, CO2 and CO concentrations in the engine exhaust were measured using gas analyzers. Laser light extinction was used to measure time-resolved, in-cylinder soot concentrations. Two different oxygenate families, maleates and glycol ethers, were chosen to study the effects of molecular structure on emissions. For both families, oxygenates of various boiling points were examined within the distillation range of the base Diesel fuel. All oxygenates were blended into the base Diesel fuel to obtain two percent oxygen by mass. Since the oxygenates were blended with the base fuel at a relatively low volume percent, modifications of the heat release characteristics from those of the base fuel were small. However, injection timing was varied with the base fuel to match the start of combustion of the oxygenated fuels in an attempt to compensate for the heat release effects on emissions. For the conditions of this study, both the maleate and glycol ether compounds reduced the soot in the engine, but the maleates appear to be more effective. The maleate compounds reduced NOx as well, apparently because they delayed the start of combustion slightly. No effects of boiling point were found for either family of compounds.
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Stoner, M. and Litzinger, T., "Effects of Structure and Boiling Point of Oxygenated Blending Compounds in Reducing Diesel Emissions," SAE Technical Paper 1999-01-1475, 1999, https://doi.org/10.4271/1999-01-1475.Also In
References
- Ashley, S. “Diesel Cars Come Clean,” Mechanical Engineering August 1997 199 8 52 56
- “EPA Cuts Diesel Engine Pollution,” EPA Headquarters Press Release October 7 1997 Washington, DC.
- National Air Pollutant Emission Trends Procedures Document Emissions Factors and Inventory Group, Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, by E.H. Pechan & Associates, Inc. Durham, NC. September 1997
- EPA Fact Sheet January 23 1998
- National Air Quality and Emissions Trends Report 1996 Environmental Protection Agency, Office of Air Quality Planning and Standards Research Triangle Park, NC 27711 October 1997
- Yokota, H. Kamimoto, T. Kosaka, H. Tsujimura, K. “Fast Burning and Reduced Soot Formation via Ultra-High Pressure Diesel Fuel Injection,” SAE Paper 910225 1991
- Jost, K. “New Common-rail Diesels Power Alfa's 156” Automotive Engineering January 1998 106 1 36 38
- Murayama, T. Zheng, M. Takemi, C. Oh, J. Fujiwara, Y. Tosaka, S. Masayoshi, Y. Yoshitake, H. “Simultaneous Reductions of Smoke and NO x from a DI Diesel Engine with EGR and Dimethyl Carbonate,” SAE 952518 1995
- Hilden, D.L. Bergin, S.P. “The Effect of Manganese Fuel Additive and Exhaust Gas Recirculation on Diesel Particulate Emissions,” SAE Paper 860621 1986
- Miyamoto, N. Ogawa, H. Arima, T. Miyakawa, K. “Improvement of Diesel Combustion and Emissions with Addition of Various Oxygenated Agents to Diesel Fuels,” SAE Paper 962115
- Tsurutani, K. Takei, Y. Fujimoto, Y. Matsudaira, J. Kumamoto, M. “The Effects of Fuel Properties and Oxygenates on Diesel Exhaust Emissions,” SAE Paper 952349
- Spreen, K.B. Ullman, T.L. Mason, R.L. “Effects of Cetane number, Aromatics, and Oxygenates on Emissions from a 1994 Heavy-Duty Diesel Engine with Exhaust Catalyst,” SAE Paper 950250
- Akasaka, Y. Sakurai, Y. “Effects of Oxygenated Fuel and Cetane Improver on Exhaust Emissions from Heavy-Duty DI Diesel Engines,” SAE Paper 942023
- Kajitani, S. Usisaki, H. Clasen, S. Campbell, S. Rhee, K.T. “MTBE for Improved Combustion and Emissions?” SAE Paper 941688 1994
- Tamanouchi, M. Akasaka, Y. “Effect of Fuel Composition on Exhaust Gas Emissions from DI and DI Impingement Diffusion Combustion Diesel Engines,” SAE 941016
- Liotta, F.J. Montavio, D.M. “The Effect of Oxygenated Fuels on Emissions from a Modern Heavy-Duty Diesel Engine,” SAE 932734 1993
- Hashimoto, T. Akasaka, Y. “Evaluation of Oxygenated Fuels using Conventional and a New type of Diesel Engine,” Proceedings of 9 th ISAF 1991
- Mitchell, D.L. “The Effects of Simulated EGR via intake Air Dilution on Combustion and Emissions in an Optically Accessible D.I. Diesel Engine” The Pennsylvania State University 1993
- Pinson, J.A. “The Effects of Intake Air Temperature on Soot Formation and Evolution in an Optically Accessible D.I. Diesel Engine” The Pennsylvania State University 1994
- Harpster, M. “A Computer Based Heat Release Analysis of Combustion in a Diesel Engine,” The Pennsylvania State University 1992
- Krieger, R.B. Borman, G.L. “The Computation of Apparent Heat Release for Internal Combustion Engines,” ASME Paper 66-WA/DG-4, Proceedings of Diesel and Gas Power ASME 1966
- Olikara, C. Borman, G.L. “A Computer Program for Calculating Properties of Equilibrium Combustion Products with Some Applications to Internal Combustion Engines,” SAE Paper 750468 1975
- Annand, W.J.D. “Heat Transfer in the Cylinders of Reciprocating Internal Combustion Engines,” Proceedings of the Institute of Mechanical Engineers 177 1963 973 999
- Hentschel, W. Richter, J. “Time-resolved Analysis of Soot Formation and Oxidation in a Direct-Injection Diesel Engine for Different EGR Rates by and Extinction Method,” 1995 SAE Fuels & Lubricants & Exposition Meeting Toronto Oct. 1995
- Dec, J. E. “A Conceptual Model of DI Diesel Combustion based on Laser-sheet Imaging,” SAE Paper 970783