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A Detailed Chemical Kinetic Analysis of Low Temperature Non-Sooting Diesel Combustion
Technical Paper
2005-01-0923
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
We have developed a model of the diesel fuel injection process for application to analysis of low temperature non-sooting combustion. The model uses a simplified mixing correlation and detailed chemical kinetics to analyze a parcel of fuel as it moves along the fuel jet, from injection to evaporation and ignition. The model predicts chemical composition and soot precursors, and is applied at conditions that result in low temperature non-sooting combustion. Production of soot precursors is the first step toward production of soot, and modeling precursor production is expected to give insight into the overall evolution of soot inside the engine.
The results of the analysis show that the model has been successful in describing many of the observed characteristics of low temperature combustion. The model predicts results that are qualitatively similar to those obtained for soot formation experiments at conditions in which the EGR rate is increased from zero to very high values as the fueling rate is kept constant. The model also describes the two paths to achieve non-sooting combustion. The first is smokeless rich combustion and the second is modulated kinetics (MK). The importance of the combustion temperature after ignition and the equivalence ratio at the time of ignition is demonstrated, as these parameters can be used to collapse all the results for soot precursors onto a single line for multiple fueling rates. A parametric analysis indicates that precursor formation increases considerably as the gas temperature in the combustion chamber and the characteristic mixing time are increased. The model provides a chemical kinetic description of low temperature diesel combustion that improves the understanding of this clean and efficient regime of operation.
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Aceves, S. and Flowers, D., "A Detailed Chemical Kinetic Analysis of Low Temperature Non-Sooting Diesel Combustion," SAE Technical Paper 2005-01-0923, 2005, https://doi.org/10.4271/2005-01-0923.Also In
References
- Sasaki, S. Ito, T. Iguchi, S. 2000 “Smoke-less Rich Combustion by Low Temperature Oxidation in Diesel Engines,” Proceedings of the 9 th Aachener Kolloquium Fahrzeug- und Motorentechnik 2000 Aachen, Germany
- Kimura, S. Matsui, Y. Koike, M. 1998 “New Combustion Concept for Simultaneous Reduction of NOx and Particulate Emissions from Small DI Diesel Engines,” Proceedings of the 1998 FISITA Congress Paris, France
- Epping, K. Aceves, S.M. Bechtold, R.L. Dec, J.E. 2002 “The Potential of HCCI Combustion for High Efficiency and Low Emissions,” SAE Paper 2002-01-1923
- Sasaki, S. Kobayashi, N. Hashimoto, Y. Tanaka, T. Hirota, S. 2002 “A New Combustion Concept for Clean Diesel System with DPNR,” MTZ Worldwide 63 10 2 8
- Kimura, S. Aoki, O. Kitahara, Y. Aiyoshizawa, E. 2001 Ultra-Clean Combustion Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards,” SAE Paper 2001-01-0200
- Kimura, S. Ogawa, H. Matsui, Y. Enomoto, Y. 2002 “An Experimental Analysis of Low-Temperature and Premixed Combustion for Simultaneous Reduction of NOx and Particulate Emissions in Direct Injection Diesel Engines,” International Journal of Engine Research 3 4 249 259
- Akihama, K. Takatori, Y. Inagaki, K. Sasaki, S. Dean, A.M. 2001 “Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature,” SAE Paper 2001-01-0655
- Bianchi, G.M. Cazzoli, G. Pelloni, P. Corcione, F.E. 2002 “Numerical Study Towards Smoke-Less and NOx-Less Diesel Engine Combustion,” SAE Paper 2002-01-1115
- Narushima, T. Morishima, A. Morikawi, H. Kusaka, J. Daisho, Y. 2003 “Experimental and Numerical Studies on Soot Formation in Fuel-Rich Mixture,” SAE Paper 2003-01-1850
- Wagner, R.M. Green, J.B. Dam, T.Q. Edwards, K.D. Storey, J.M. 2003 “Simultaneous Low Engine-Out NOx and Particulate Matter with Highly Diluted Diesel Combustion,” SAE Paper 2003-01-0262
- Pickett, L. Siebers, D.L. 2003 “Fuel Effects on Soot Processes of Fuel Jets at DI Diesel Conditions,” SAE Paper 2003-01-3080
- Sluder, C.S. Wagner, R.M. Lewis, S.A. Storey, J.M.E. 2004 “Exhaust Chemistry of Low-NOx, Low-PM Diesel Combustion,” SAE Paper 2004-01-0114
- Pickett, L. Siebers, D.L. 2004 “Non-sooting, Low Flame Temperature Mixing-Controlled DI Diesel Combustion,” SAE Paper 2004-01-1399
- Frenklach, M. Wang, H. 1994 “Detailed Mechanism and Modeling of Soot Particle Formation,” Soot Formation in Combustion: Mechanisms and Models Bockhorn H. Springer Series in Chemical Physics 59 Springer-Verlag Berlin 162 190
- Dec, J.E. 1997 “A Conceptual model of DI Diesel Combustion Based on Laser-Sheet Imaging,” SAE Paper 970873
- Kosaka, H. Aizawa, T. Kamimoto, T. 2004 “Two-Dimensional Imaging of Ignition and Soot Formation Processes in a Diesel Flame,” International Journal of Engine Research
- Bayer, J. Foster, D. 2003 “Zero-Dimensional Soot Modeling,” SAE Paper 2003-01-1070
- Mueller, C.J. Pitz, W.J. Pickett, L.M. Martin, G.C. Siebers, D.L. Westbrook, C.K. 2003 “Effects of Oxygenates on Soot Processes in DI Diesel Engines: Experiments and Numerical Simulations,” SAE Paper 2003-01-1791
- Flynn, P. F. Durrett, R.P. Hunter, G.L. zur Loye, A.O. Akinyemi, O.C. Dec, J.E. Westbrook, C.K. 1999 “Diesel Combustion: An Integrated View Combining Laser Diagnostics, Chemical Kinetics, and Empirical Validation,” SAE Paper 1999-01-0509
- Heywood, J. B. Internal Combustion Engine Fundamentals McGraw-Hill, Inc. New York, NY 1988
- Curran, H.J. Gaffuri, P. Pitz, W.J. Westbrook, C.K. 1998 “A Comprehensive Modeling Study of n-Heptane Oxidation,” Combustion and Flame 114 1-2 149 177
- Kitamura, T. Ito, T. Senda, J. Fujimoto, H. 2002 “Mechanism of Smokeless Diesel Combustion with Oxygenated Fuels Based on the Dependence of the Equivalence Ratio and Temperature on Soot Particle Formation,” International Journal of Engine Research 3 223 248
- Pickett, L. Siebers, D.L. 2002 “An Investigation of Diesel Soot Formation Processes Using Micro-Orifices,” Proceedings of the Combustion Institute 29 655 662