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Simultaneously Reduction of NOx and Soot Emissions in a DI Heavy Duty diesel Engine Operating at High Cooled EGR Rates
Abstract:One promising way to achieve low temperature combustion regime is the use of a large amount of cooled EGR. In this paper, the effect of injection timing on low temperature combustion process and emissions were investigated via three dimensional computational fluid dynamics (CFD) procedures in a DI diesel engine using high EGR rates. The results show when increasing EGR from low levels to levels corresponding to reduced temperature combustion, soot emission after first increasing, is decreased beyond 40% EGR and get the lowest value at 58% EGR rate. Soot and NOx emissions are simultaneously decreased at advanced injection timing before 20.5 ºCA BTDC in conjunction with 58% cooled EGR rate in compared to baseline case.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1076612Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1637
 Ryan, T. W., Callahan, T. J. "Homogeneous Charge Compression Ignition of Diesel Fuel." SAE Paper, NO. 961160, 1996.
 Dec, J. E. "A computational study of the effects of low fuel loading and EGR on heat release rates and combustion limits in HCCI engines." SAE Paper. NO. 2002-01-1309, 2002.
 Hosseini, V. W Stuart Neill, Wally L. Chippior. "Influence of Engine Speed on HCCI Combustion Characteristics using Dual-Stage Autoignition Fuel." SAE Paper, NO. 2009-01-1107, 2009.
 Lee, C. S., Lee, K. H., and Kim, D. S. "Experimental and Numerical Study on the Combustion Characteristics of Partially Premixed Charge Compression Ignition Engine With Dual Fuel." Fuel, NO.82, pp. 553- 560 , 2003.
 Kanda, T., Hakozaki, T., Uchimoto, T., Hatano, J., Kitayama, N., and Sono, H. "PCCI Operation with Early Injection of Conventional Diesel Fuel." SAE Paper, NO. 2005-01-0378, 2005.
 Sasaki, S., Ito, T. and Iguchi, S., "Smoke-less Rich Combustion by Low Temperature Oxidation in Diesel Engines", 9. Aachen Colloquium Automobile and Engine Technology 2000, 767, 2000.
 Akihama, K., Takatori, Y., Inagaki, K., Sasaki, S., and Dean, A. M. "Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature." SAE Paper, NO. 2001-01-0655, 2001.
 Bianchi, G.M., Cazzoli, G., Pelloni, P. and Corcione, F. E., "Numerical Study Towards Smoke-Less and NOx-Less HSDI Diesel Engine Combustion", SAE Paper, NO. 2002-01-1115, 2002.
 Amsden A.A., O-Rourke P.J., Butler T.D. "KIVA ll: a computer program for chemically reactive flows with sprays." Los Alamos National Laboratory, NO. LA-11560-MS, 1989.
 Han Z., Reits R.D. "Turbulence modelling of internal combustion engine using RNG k-╬Á models." Combustion Science Technology, in press.
 Beale, J.C., and Reitz, R.D. "Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model." Atomization and Sprays, NO. 9, pp. 623-650, 1999.
 Dukowicz, J.K. "Quasi-Steady Droplet Phase Change In the Presence of Convection." Informal Report Los Alamos Scientific Laboratory, LA7997-MS, 1979.
 S Halstead, M., Kirsch, L. and Quinn, C., "The Auto Ignition of Hydrocarbon Fueled at High Temperatures and Pressures-Fitting of a Mathematical Model." Combustion Flame, NO. 30, pp. 45-60, 1977.
 Versteeg, Malalasekera, An Introduction to Computational Fluid Dynamics. Mc Grow- Hill Book Company, ISBN 964-454-375- 0, 1995.
 Zeldovich, Y. B., Sadovnikov, P. Y. and Frank Kamenetskii, D. A. "Oxidation of Nitrogen in Combustion." Translation by M. Shelef, Academy of Sciences of USSR, Institute of Chemical Physics, Moscow- Leningrad, 1947.
 Kong, S.-C., Sun, Y., and Reitz, R. D. "Modeling Diesel Spray Flame Lift-Off, Sooting Tendency and NOx Emissions Using Detailed Chemistry with Phenomenological Soot Model." ASME J. Eng. Gas Turbines Power, 2007.
 Rutland, C. J., Ayoub, N. Z., Han, Z., et al., "Diesel engine model and development and experiments." SAE Paper, NO. 951200, 1995.
 Ciajolo, A., d-Anna, A., Barbella, R., Tregrossi, A and Violi, A. "The Effect of Temperature on Soot Inception in Premixed Ethylene Flames.", Twenty-Sixth Symposium (International) on Combustion, The Combustion Institute, 1996.
 Lee S., Gonzalez M.A., Reitz R.D., "Stoichiometric combustion in a HSDI diesel engine to allow use of a three-way exhaust catalyst.", SAE Paper, NO. 2006-01-1148, 2006.
 Baumgarten, Carsten. Mixture Formation in Internal Combustion Engines. Springer Publications, 2006.