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Premixed Diesel Combustion Analysis in a Heavy-Duty Diesel Engine
Technical Paper
2003-01-0341
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Optimizations were performed on a Heavy-Duty diesel engine equipped with a conventional electronic unit injector in order to minimize fuel consumption, and emissions of NOx and particulate matter. A low speed light load case and a high speed light load case were optimized with these considerations in mind. Exhaustive parametric studies were performed in order to find sets of operating conditions that resulted in low emissions and high fuel economy. It was found for the low speed light load case (Mode 2, 25% load and 821 rev/min) that low emissions operating conditions existed at either very early or very late start-of-injection timings and high EGR (PM = 0.018 g/kW-hr, NOx + HC = 1.493 g/kW-hr with SOI = -21 degrees ATDC, 48% EGR; or 0.085 g/kW-hr PM, 1.02 g/kW-hr NOx with SOI = 4 degrees ATDC, 39% EGR). For the high speed light load case, it was found that low emissions were available when operating with an early start-of-injection timing and high EGR (0.059 g/kW-hr PM, 2.52 g/kW-hr NOx with SOI = -28 degrees ATDC, 49% EGR). Particulate is known to be formed in fuel rich regions, but if the local equivalence ratio is kept below approximately 2, very little particulate is formed. Analysis of the present data shows that if there is an optimal delay between the end of injection and the start of combustion (2 to 4 crank angle degrees), then enough mixing takes place so that the maximum local equivalence ratios are reduced. NOx is shown to decrease steadily as the EGR rate is increased, or as the start-of-injection timing is retarded.
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Klingbeil, A., Juneja, H., Ra, Y., and Reitz, R., "Premixed Diesel Combustion Analysis in a Heavy-Duty Diesel Engine," SAE Technical Paper 2003-01-0341, 2003, https://doi.org/10.4271/2003-01-0341.Also In
References
- http://www.dieselnet.com/standards/us/hd.html#pre04
- “Emission standards and supplemental requirements for 2007 and later model year diesel heavy-duty engines and vehicles” 40 CFR - CHAPTER I - PART 86, 40CFR68.007-11 US EPA March 2002
- “Emission standards for 2004 and later model year diesel heavy-duty engines and vehicles” 40 CFR - CHAPTER I - PART 86, 40CFR86.004-11 US EPA March 2002
- Bedford F. Rutland C. Dittrich P. Raab A. Wirbeleit F. “Effects of Direct Water Injection on DI Diesel Engine Combustion” SAE Paper 2000-01-2938 2000
- Musculus M. Dec J. Tree D. Ryan T. III Matheaus A. Daly D. Langer D. “Effects of Water-Fuel Emulsions on Spray and Combustion Processes in a Heavy-Duty DI Diesel Engine” SAE Paper 2002-01-2892 2002
- Dodge L. Simescu S. Neely G. Maymar M. Dickey D. Savonen C. “Effect of Small Holes and High Injection Pressures on Diesel Engine Combustion” SAE Paper 2002-01-0494 2002
- Hammer T. “Non-Thermal Plasma-Enhanced Urea-Scr Treatment of Diesel Exhaust for Low-Temperature Nox Reduction” SAE Paper 2001-01-3200 2001
- http://www.epa.gov/air/urbanair/nox/hlth.html
- Heywood J.B. “Internal Combustion Engine Fundamentals” McGraw-Hill, Inc. 0-07-028637-X 1988
- Turns S.R. “An Introduction to Combustion: Concepts and Applications” 2nd McGraw-Hill Inc. 0-07-230096-5 2000
- Dec J.E. Canaan R.E. “PLIF Imaging of NO Formation in a DI Diesel Engine” SAE Paper 980147 1998
- Dec J.E. Kelly-Zion P.L. “The Effects of Injection Timing and Diluent Addition on Late-Combustion Soot Burnout in a DI Diesel Engine Based on Simultaneous 2-D Imaging of OH and Soot” SAE Paper 2000-01-0238 2000
- Wagner, H. G. “Soot Formation - an Overview” 1 29 Particulate Carbon Formation During Combustion Siegla D.C. Smith G.W. Plenum Press New York 1982
- Tanin K.V. Wickman D.D. Montgomery D.T. Das S. Reitz R.D. “The Influence of Boost Pressure on Emissions and Fuel Consumption of a Heavy-Duty Single-Cylinder D.I. Diesel Engine” SAE Paper 1999-01-0840 1999
- Montgomery D. T. “An Investigation Into Optimization of Heavy-Duty Diesel Engine Operating Parameters When Using Multiple Injections and EGR” University of Wisconsin-Madison 2000
- Montgomery D. T. Reitz R. D. “Optimization of Heavy-Duty Diesel Engine Operating Parameters Using a Response Surface Method” SAE Paper 2000-01-1962 2000
- Çengel Y.A. Boles M.A. “Thermodynamics: An Engineering Approach” 3rd McGraw-Hill, Inc. 0-07-011927-9 1998
- Thiel M.P. Klingbeil A.E. Reitz R.D. “Experimental Optimization of a Heavy-Duty Diesel Engine Using Automated Genetic Algorithms” SAE Paper 2002-01-0960 2002
- Thiel M. P. “Application of Automated Experiments to the Optimization of a Heavy-Duty Direct Injected Diesel Engine for the Simultaneous Reduction of NOx and Particulate Emissions” University of Wisconsin-Madison 2001
- Nehmer D. A. Reitz R. D. “Measurement of the Effect of Injection Rate and Split Injections on Diesel Engine Sot and NOx Emissions” SAE Paper 940668 1994
- “Operating Manual Dynamic Particulate and Lambda Analyzer DPL 482” AVL List GmbH Document AT0047E 1992
- Goldberg D. E. “Genetic Algorithms in Search, Optimization and Machine Learning” Addison-Wesley 0-201-15767-5 1989
- Carroll D. L. “Genetic Algorithms and Optimizing Chemical Oxygen Iodine Lasers” Developments in Theoretical and Applied Mechanics 1996 18 411
- Senecal P. K. Montgomery D. T. Reitz R. D. “A Methodology for Engine Design Using Multi-Dimensional Modeling and Genetic Algorithms with Validation Through Experiments” Int J Engine Research 1 3 2000
- Senecal P. K. Reitz R. D. “Simultaneous Reduction of Engine Emissions and Fuel Consumption Using Genetic Algorithms and Multi-Dimensional Spray and Combustion Modeling” SAE Paper 2000-01-1890 2000
- Senecal P. K. “Development of a Methodology for Internal Combustion Engine Design Using Multi-Dimensional Modeling With Validation Through Experiments” University of Wisconsin-Madison 2000
- Amsden A. A. KIVA-3V, Release 2, Improvements to KIVA-3V. LA-UR-99-915 1999
- Ra Y. Reitz R. D. “A Multi-Component Droplet Vaporization Model for Use in Gasoline and HCCI Engine Applications” International Journal of Engine Research 2002
- Han, Z. Reitz, R.D. “Turbulence Modeling of Internal Combustion Engines Using RNG k-e models” Comb. Sci. Tech. 106 1995
- Kong, S. -C. Han, Z. Reitz, R.D. “The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation” SAE Paper 950278 1995
- Klingbeil A. E. “Particulate and NOx Reduction in a Heavy-Duty Diesel Engine Using High Levels of Exhaust Gas Recirculation and Very Early or Very Late Start of Injection” University of Wisconsin-Madison 2002
- Street, J. C. Thomas, A. “Carbon Formation in Premixed Flames” Fuel 34 4 36 1955
- Ladommatos N. Abdelhalim S.M. Zhao H. Hu Z. “Effects of EGR on Heat Release in Diesel Combustion” SAE Paper 980184 1998
- Dec J.E. “A Conceptual Model of DI Diesel Combustion Based on Laser-Sheet Imaging” SAE Paper 970873 1997