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Development of New 3-D Multi-Zone Combustion Model for Indirect Injection Diesel Engines with a Swirl Type Prechamber
Technical Paper
2000-01-0587
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
SAE 2000 World Congress
Language:
English
Abstract
During the past years most fundamental research worldwide has been concentrated on the direct injection diesel engine (DI). This engine has a lower specific fuel consumption when compared to the indirect injection diesel engine (IDI) used up to now in most passenger cars. But the application of the direct injection engine on passenger cars and light trucks has various problems. These are associated mainly with its ability to operate at high engine speeds due to the very low time available for combustion. To overcome these problems engineers have introduced various techniques such as swirl and squish for the working fluid and the use of extremely high pressure fuel injection systems to promote the air-fuel mixing mechanism. The last requires the solution of various problems associated with the use of the high pressure and relatively small injector holes. On the other hand the IDI diesel engine even though having higher specific fuel consumption compared to the DI engine has various advantages. The NOx emission levers are relatively low and the power concentration is high since it can operate at lower air/fuel ratios and at higher engine speeds. Furthermore the IDI engine does not require sophisticated fuel injection systems since the injection pressure level is low. As far as particulate emissions are concerned the IDI engine has in most cases comparable or even lower values compared to the DI engine. Taking into account the previous and the fact that the IDI engine is very reliable it seems that it will continue to exist in the future. For this reason in the present work are given the initial results obtained from a newly developed three-dimensional multi-zone combustion model for IDI diesel engines. The model considers in general two major control volumes the main chamber and the prechamber. Inside the swirl prechamber the interaction between the injected fuel and the air has been considered using the conservation equations of mass, energy and momentum. Using the proposed 3-D multi-zone model we are in position to describe the mixing and combustion mechanisms inside each chamber and to estimate the local pollutants formation history and the distribution of various thermodynamic parameters. To validate the model an experimental investigation has been conducted on a Ricardo E-6 IDI single cylinder test engine having a swirl type prechamber. The comparison of experimental findings and computational results up to now reveal a good degree of agreement for both engine performance and pollutants emissions and the model seems promising. This is encouraging, especially if we take into account the complexity of the new concerning the history of emitted pollutants and the contribution of each chamber, the main chamber and the prechamber to their formation.
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Rakopoulos, C. and Hountalas, D., "Development of New 3-D Multi-Zone Combustion Model for Indirect Injection Diesel Engines with a Swirl Type Prechamber," SAE Technical Paper 2000-01-0587, 2000, https://doi.org/10.4271/2000-01-0587.Also In
References
- Heywood, J.B. Internal Combustion Engine Fundamentals McGraw-Hill New York 1988
- 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
- Pinchon, Ph. Guillot, B. “Thermodynamic and flow analysis of an Indirect diesel combustion chamber by modeling” SAE Paper 851686 1985
- Mansouri, S.H. Heywood, J.B. Radhakrishnan, K. “Divided-Chamber diesel engine part I” SAE Paper 8200273 , SAE Transactions 91 89 120 1982
- Watson, N. Kamel, M. “Thermodynamic efficiency evaluation of an indirect injection diesel engine” SAE Paper 790039 1979
- Benson, R.S. Whitehouse, N.D. Internal Combustion Engines Pergamon, Oxford 1979
- Gosman, A.D. Harvey, P.S. “Computer analysis of fuel-air mixing and combustion in axisymmetric D.I. diesel engine” SAE Paper No 820036 1982
- Duggal, V.K. Kuo, T.W. Mukerjee, T. Przekwas, A.J. Singhal, A.K. “Three dimensional modelling of in-cylinder processes in DI diesel engines” SAE Paper No 840229 1984
- Amsden, A.A. Butler, T.D. O'Rourke, P.J. Ramshaw, J.D. “KIVA-A comprehensive model for 2-D and 3-D engine simulations” SAE Paper No 850554 1985
- Nishida, K. Hiroyasu, H. “Simplified three-dimensional modelling of mixture formation and combustion in a D.I. diesel engine” SAE Paper No 890269 1989
- Hiroyasu, H. Kadota, T. Arai, M. “Development and use of a spray combustion modelling to predict diesel engine efficiency and pollutant emissions” Bulletin JSME 26 569 576 1983
- Hiroyasu, H. Yoshimatsu, A. Arai, M. “Mathematical model for predicting the rate of heat release and exhaust emissions in IDI diesel engines” Conference on “Diesel Engines for Passenger Cars and Light Duty Vehicles”, Inst. Mech. Engrs, Paper C102/82 207 213 1982
- 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
- Rakopoulos, C.D. Hountalas, D.T. Taklis, G.N. Tzanos, E.I. “Analysis of combustion and pollutants formation in a direct injection diesel engine using a multi-zone model” Energy Res, 19 63 88 1995
- 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 970635 , SAE Transactions 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 engine performance and pollutants emissions” SAE Paper 981021 , SAE Transactions 1998
- Kamel, M. Watson, N. “Heat transfer in the indirect injection diesel engine” SAE Paper No 790826 1979
- Kouremenos, D.A. Rakopoulos, C.D. Kotsos, K.G. Hountalas, D.T. “Modelling the blowby rate in a reciprocating internal combustion engine” Proc. 16th IASTED IMS Int. Conf. Paris June 22-24 465 468 1987
- Kouremenos, D.A. Rakopoulos, C.D. Hountalas, D.T. Kotsiopoulos, P.N. “A simulation technique for the fuel injection system of diesel engines” Proc. ASME-WA Meeting, Atlanta GA, AES 24 91 102 1991
- Hountalas, D.T. Kouremenos, A.D. “Development of a fast and simple simulation model for the fuel injection system of diesel engines” Advances in Engng Software 29 13 28 1997
- Ramos, J.I. Internal Combustion Engine Modelling Hemisphere, New York 1989
- Chiu, W.S. Shahed, S.M. Lyn, W.T. “A transient spray mixing model for diesel combustion” SAE Paper No 760128 1976
- Glauert, M.B. “The wall jet” J.Fluid Mech. 1 625 643 1956
- Meintjes, K. Alkidas, A.C. “An experimental and computational investigation of the flow in diesel prechambers” SAE Paper 820275 , SAE Transactions 91 137 154
- Williams, T.J. “Parameters for correlation of penetration results for diesel fuel sprays” Proc. Inst. Mech. Engrs 187 771 774 1973
- Dent, J.C. Derham, J.A. “Air motion in a four-stroke direct injection diesel engine” Proc. Inst. Mech. Engrs 188 269 280 1974
- Launder, B.E. Spalding, D.B. Mathematical Models of Turbulence Academic Press London & New York 1972
- Hountalas, D.T. “The effect of operating parameters on the net and gross heat release rates of a direct injection diesel engine” Proc. 2nd Biennial ASME-ESDA Intern. Conf. on “Design of Energy Systems” London 64-3 27 34 1994
- Annand, W.J.D. “Heat transfer in the cylinders of reciprocating internal combustion engines” Proc. Inst. Mech. Engrs 177 973 990 1963
- Borman, G.L. Johnson, J.H. “Unsteady vaporisation 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
- 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
- Vickland, C.W. Strange, F.M. Bell, R.A. Starkman, E.S. “A consideration of the high temperature thermodynamics of internal combustion engines” Transactions SAE 70 785 793 1962
- Hodgetts, D. Shroff, H.D. “More on the formation of nitric oxide in a diesel engine” Conference on “Combustion in Engines”, Inst. Mech. Engrs, Paper C95/75 129 138 1975
- Ricardo, H.R Hempson, J.G.G. “ The High Speed Internal Combustion Engine ” Blackie&Son Ltd. 1968