This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Multi-Zone Combustion Modeling as a Tool for DI Diesel Engine Development – Application for the Effect of Injection Pressure
Technical Paper
2004-01-0115
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
During the recent years, extensive research conducted worldwide in the field of Heavy Duty Diesel engines has resulted to a significant improvement of engine performance and emissions. These efforts have been assisted from simulation models providing good results. Towards this direction a multi-zone model developed by the authors has been used in the past to examine the effect of injection pressure on DI diesel engine performance and emissions. The attempt was challenging since no experimental data existed when the calculations were conducted, to support the findings. Eventually, experimental data concerning engine performance and emissions became available using slightly different operating conditions and injection pressure data. In the present study an attempt is made to evaluate the prediction ability of the multi zone model by comparing the theoretical results with experimental data and explain any discrepancies between them. The simulation code used is essentially the same while a calibration has been made only for the soot model, to obtain at one operating point (low injection pressure) similar absolute values. It is promising that the simulation manages to predict for all examined cases the effect of injection pressure on engine performance and emissions. It is confirmed that the increase of injection pressure results to fast combustion and a serious reduction of soot especially at part load and high engine speeds but at the same time to a considerable increase of NO emissions. Predictions from the present study using actual injection rate data and operating conditions are qualitatively similar to the ones of the initial investigation while absolute values are closer to the experimental ones. But since the most important role of modeling is not to capture accurately absolute values but trends, its validity as a prediction tool is revealed.
Recommended Content
Authors
- D. T. Hountalas - Mechanical Engrg Department, National Technical University of Athens
- D. A. Kouremenos - Mechanical Engrg Department, National Technical University of Athens
- G. C. Mavropoulos - Mechanical Engrg Department, National Technical University of Athens
- K. B. Binder - Daimler-Chrysler AG
- V. Schwarz - Daimler-Chrysler AG
Topic
Citation
Hountalas, D., Kouremenos, D., Mavropoulos, G., Binder, K. et al., "Multi-Zone Combustion Modeling as a Tool for DI Diesel Engine Development – Application for the Effect of Injection Pressure," SAE Technical Paper 2004-01-0115, 2004, https://doi.org/10.4271/2004-01-0115.Also In
Diesel Emissions on CD-ROM from the SAE 2004 World Congress
Number: SP-1835CD; Published: 2004-03-08
Number: SP-1835CD; Published: 2004-03-08
References
- Benson, R.S. Whitehouse, N.D. Internal Combustion Engines Pergamon, Oxford 1979
- Heywood, J.B. Internal Combustion Engine Fundamentals McGraw-Hill New York 1988
- Weissbeck, H. “Technologies That Will Improve Diesels” presentation at SAE Congress 2002 Executive Panel: “The Diesel Engine of Tomorrow” Detroit, MI 2002
- Foster, D.E. “Competition To The Diesel Engine?” presentation at SAE Congress 2002 Executive Panel: “The Diesel Engine of Tomorrow” Detroit, MI 2002
- Kreith, P.E. “The cost of Hydrogen” Mech. Engrg. 124 6 6 2002
- Jung, D Assanis, D.N. “Multi-zone DI diesel spray combustion model for cycle simulation studies of engine performance and emissions” SAE Paper No 2001-01-1246
- Nishimura, T. “Effect of Fuel Injection Rate on Combustion and Emission in a DI Diesel Engine” Future Transportation Technology Conference & Exposition August 1998 Costa Mesa, CA, USA
- Kouremenos, D.A. Rakopoulos, C.D. Hountalas, D.T. “Multi-zone combustion modelling for the prediction of pollutants emissions and performance of DI diesel engines” SAE Paper No 970635 1997
- Rakopoulos, C.D. Hountalas, D.T. “Development and Validation of a 3-D Multi-Zone Combustion Model for the Prediction of a DI Diesel Engines Performance and Pollutants Emissions” SAE Transactions, Journal of Engines 107 1413 1429 1998
- Rakopoulos, C.D. Hountalas, D.T. “Development of new 3-d multi-zone combustion model for indirect injection diesel engines with a swirl type prechamber” SAE Paper No 2000-01-0587
- Hountalas, D.T. Kouremenos, D.A. Binder, K.B. Schwarz, V. Mavropoulos,, G.C. “Effect of Injection Pressure on the Performance and Exhaust Emissions of a Heavy Duty DI Diesel Engine” SAE Paper No 2003-01-0340
- Hountalas, D.T. Kouremenos, D.A. Binder K.B. “The Effect of EGR on the performance and pollutant emissions of heavy duty diesel Engines using constant and variable AFR” SAE Paper No 2001-01-0198
- Hountalas, D.T. Kouremenos, D.A. Binder K.B. Raab, A. Schnabel, M.H. “Using advanced injection timing and EGR to improve DI diesel engine efficiency at acceptable NO and Soot levels” SAE Paper No 2001-01-0199
- Hountalas, D.T. Kouremenos, D.A. Pariotis, E.G. Schwarz, V. Binder K.B. “Using a phenomenological multi-zone model to investigate the effect of injection rate shaping on performance and pollutants of a DI heavy duty diesel engine” SAE Paper No 2002-01-0074
- Kouremenos, D.A. Rakopoulos, C.D. Hountalas, D.T. “Thermodynamic analysis of indirect injection diesel engines by two-zone modeling of combustion” Trans. ASME, J. Engng for Gas Turbines and Power 112 138 149 1990
- Launder, B.E. Spalding, D.B. Mathematical Models of Turbulence Academic Press London & New York 1972
- Annand, W.J.D. “Heat transfer in the cylinders of reciprocating internal combustion engines” Proc. Inst. Mech. Engrs 177 973 990 1963
- Dent, J.C. Derham, J.A. “Air motion in a four-stroke direct injection diesel engine” Proc. Inst. Mech. Engrs 188 269 280 1974
- Ramos, J.I. Internal Combustion Engine Modelling Hemisphere New York 1989
- Borman, G.L. Johnson, J.H. “Unsteady vaporization histories and trajectories of fuel drops injected into swirling air” SAE Paper No. 598C, National Powerplant Meeting Philadelphia PA 1962
- Kadota, T. Hiroyasu, H. Oya, H. “Spontaneous ignition delay of a fuel droplet in high pressure and high temperature gaseous environments” Bulletin JSME 19 130 1976
- Kouremenos, D.A. Hountalas, D.T. Kotsiopoulos, P.N. “Computer simulation of turbocharged marine diesel engines and its application for engine and turbocharger diagnosis” 5th Intern. Conf. on “Turbocharging and Turbochargers”, Inst. Mech. Engrs, Paper C484/008/94 13 20 1994
- Vickland, C.W. Strange, F.M. Bell, R.A. Starkman, E.S. “A consideration of the high temperature thermodynamics of internal combustion engines” Trans. SAE 70 785 793 1962
- Rakopoulos, C.D. Hountalas, D.T. Tzanos, E.I. Taklis, G.N. “A fast algorithm for calculating the composition of diesel combustion products using an eleven species chemical equilibrium scheme” Advances in Engng Software 19 109 119 1994
- Lavoie, G.A. Heywood, J.B. Keck, J.C. “Experimental and theoretical study of nitric oxide formation in internal combustion engines” Combust. Sci. and Technol. 1 313 326 1970
- “High Fuel Efficiency Diesel Engine With Significantly Increased Peak Pressure” 1997