This content is not included in your SAE MOBILUS subscription, or you are not logged in.
A Comparison Between Two Phenomenological Combustion Models Applied to Different SI Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 08, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Nowadays, the development of a new engine is becoming more and more complex due to conflicting factors regarding technical, environmental and economic issues. The experimental activity has to comply with the above complexities, resulting in increasing cost and duration of engine development. For this reason, the simulation is becoming even more prominent, thanks to its lower financial burden, together with the need of an improved predictive capability. Among the other numerical approaches, the 1D models represent a proper compromise between reliability and computational effort, especially if the engine behavior has to be investigated over a number of operating conditions. The combustion model has a key role in this contest and the research of consistent approaches is still on going.
In this paper, two well-assessed combustion models for Spark Ignition (SI) engines are described and compared: the eddy burn-up theory and the fractal approach. Both are embedded in the commercial software GT-Power™ under the form of “user routine”.
The main aim of the paper is a detailed appraisal of the above combustion models, carried out with reference to three different SI engines, fueled with commercial gasolines, both at full and part load operation. In a first stage, the background theory of both models is presented and an extension of the fractal model is also proposed. A sensitivity analysis is performed to investigate the effects of tuning constants included in each model. Then, they are tuned with reference to experimental data at full load and a single set of constants is established for each engine. Tunability efforts are also discussed.
The predictive capabilities of the combustion models are compared and discussed under various operating conditions, in terms of characteristic combustion events and burn rate profiles. Finally, in order to also assess the physical strength of both models, a fourth engine is investigated in a “blind” test, without performing a dedicated tuning. The results showed that the fractal and eddy burn-up combustion models exhibit similar accuracy levels, and guarantee satisfactory reliability and applicability to various engines and operating conditions. However, the fractal approach denoted an easier tunability and a slight higher predictivity.
CitationDe Bellis, V., Bozza, F., and Tufano, D., "A Comparison Between Two Phenomenological Combustion Models Applied to Different SI Engines," SAE Technical Paper 2017-01-2184, 2017, https://doi.org/10.4271/2017-01-2184.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Sellnau , M. , Kunz , T. , Sinnamon , J. , and Burkhard , J. 2-step Variable Valve Actuation: System Optimization and Integration on an SI Engine SAE Technical Paper 2006-01-0040 2006 10.4271/2006-01-0040
- Shaik , A. , Moorthi , NSV. , Rudramoorthy , R. Variable Compression ratio engine: a future power plant for automobiles-an overview Proc. of the Istitution of Mechanical Engineers Part D: Journal of Aut. Eng. 221 9 1159 1168 2007
- Hoppe , F. , Thewes , M. , Baumgarten , H. and Dohmen , J. Water injection for gasoline engines: Potentials, challenges, and solutions International J of Engine Research 17 1 86 96 2016 10.1177/1468087415599867
- Potteau , S. , Lutz , P. , Leroux , S. , Moroz , S. et al. Cooled EGR for a Turbo SI Engine to Reduce Knocking and Fuel Consumption SAE Technical Paper 2007-01-3978 2007 10.4271/2007-01-3978
- Wei , H. , Zhu , T. , Shu , G. , Tan , L. , Wang , Y. Gasoline engine exhaust gas recirculation - A review Applied Energy 99 534 544 2012
- Matthews , R. and Chin , Y. A Fractal-Based SI Engine Model: Comparisons of Predictions with Experimental Data SAE Technical Paper 910079 1991 10.4271/910079
- Poulos , S. and Heywood , J. The Effect of Chamber Geometry on Spark-Ignition Engine Combustion SAE Technical Paper 830334 1983 10.4271/830334
- Demesoukas , S. , Caillol , C. , Higelin , P. , and Boiarciuc , A. Zero-Dimensional Spark Ignition Combustion Modeling - A Comparison of Different Approaches SAE Technical Paper 2013-24-0022 2013 10.4271/2013-24-0022
- Richard , S. , Bougrine , S. , Font , G. , Lafossas , F.A. , Le Berr , F. On the Reduction of a 3D CFD Combustion Model to Build a Physical 0D Model for Simulating Heat Release, Knock and Pollutants in SI Engines Oil & Gas Science and Technology 64 3 223 242 2009 10.2516/ogst/2008055
- Perlman , C. , Frojd , K. , Seidel , L. , Tuner , M. et al. A Fast Tool for Predictive IC Engine In-Cylinder Modelling with Detailed Chemistry SAE Technical Paper 2012-01-1074 2012 10.4271/2012-01-1074
- Rakopoulos , C. , Michos , C. , and Giakoumis , E. Thermodynamic Analysis of SI Engine Operation on Variable Composition Biogas-Hydrogen Blends Using a Quasi-Dimensional, Multi-Zone Combustion Model SAE Int. J. Engines 2 1 880 910 2009 10.4271/2009-01-0931
- Verhelst , S. , Sheppard , C. , G. , W. Multi-zone thermodynamic modelling of spark-ignition engine combustion-an overview Energy Conversion and management 50 5 1326 1335 2009 https://doi.org/10.1016/j.enconman.2009.01.002
- Franke , C. , Wirth , A. , Peters , N. New Aspects of the Fractal Behaviour of Turbulent Flames 23 Symp. (Int.) on Combustion Orleans 1990
- Gatowsky , J., A. , Heywood , J., B. Flame Photographs in a Spark-Ignition Engine Combustion and Flame 56 71 81 1984
- Gouldin , F. An application of Fractals to Modeling Premixed Turbulent Flames Combustion and Flame 68 3 249 266 1987 10.1016/0010-2180(87)90003-4
- Peters , N. Laminar flamelet concepts in turbulent combustion Symposium (International) on Combustion 21 1 1231 1250 1988 http://dx.doi.org/10.1016/S0082-0784(88)80355-2
- Gulder , O., L. , Smallwood , G., J. Inner cutoff scale of flame surface wrinkling in turbulent premixed flames Combustion and Flame 103 1 107 114 1995 http://dx.doi.org/10.1016/0010-2180(95)00073-F
- Blizard , N. and Keck , J. Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines SAE Technical Paper 740191 1974 10.4271/740191
- Keck , J. , Heywood , J. , and Noske , G. Early Flame Development and Burning Rates in Spark Ignition Engines and Their Cyclic Variability SAE Technical Paper 870164 1987 10.4271/870164
- Tabaczynski , R., J. Turbulence and turbulent combustion in spark-ignition engines Progress in energy and combustion science 2 3 143 165 1976 https://doi.org/10.1016/0360-1285(76)90010-1
- Dai , W. , Davis , G. , Hall , M. , and Matthews , R. Diluents and Lean Mixture Combustion Modeling for SI Engines with a Quasi-Dimensional Model SAE Technical Paper 952382 1995 10.4271/952382
- Morel , T. , Rackmil , C. , Keribar , R. , and Jennings , M. Model for Heat Transfer and Combustion In Spark Ignited Engines and its Comparison with Experiments SAE Technical Paper 880198 1988 10.4271/880198
- Hicks , R. , Lawes , M. , Sheppard , C. , and Whitaker , B. Multiple Laser Sheet Imaging Investigation of Turbulent Flame Structure in a Spark Ignition Engine SAE Technical Paper 941992 1994 10.4271/941992
- Bozza , F. , Gimelli , A. , Merola , S. , and Vaglieco , B. Validation of a Fractal Combustion Model through Flame Imaging SAE Technical Paper 2005-01-1120 2005 10.4271/2005-01-1120
- Bates , C. S. Flame Imaging Studies of Combustion Completion in a SI Four-Stroke Engine TvU Thoughtventions Unlimited LLC http://www.tvu.com/
- North , G., L. , Santavicca , D., A. The fractal nature of premixed turbulent flames Combustion Science and Technology 72 4-6 215 232 1990 10.1080/00102209008951648
- Herweg , R. and Maly , R. A Fundamental Model for Flame Kernel Formation in S. I. Engines SAE Technical Paper 922243 1992 10.4271/922243
- De Bellis , V. , Bozza , F. , Fontanesi , S. , Severi , E. et al. Development of a Phenomenological Turbulence Model through a Hierarchical 1D/3D Approach Applied to a VVA Turbocharged Engine SAE Int. J. Engines 9 1 506 519 2016 10.4271/2016-01-0545
- Bozza , F. , De Bellis , V. , Giannattasio , P. , Teodosio , L. et al Extension and Validation of a 1D Model Applied to the Analysis of a Water Injected Turbocharged Spark Ignited Engine at High Loads and over a WLTP Driving Cycle SAE Technical Paper 2017-24-0014
- Demesoukas , S. 0D/1D combustion modeling for the combustion systems optimization of spark ignition engines PhD Thesis University of Orleans 2015
- Sjerić , M. , Kozarac , D. , Tatschl , R. Modelling of early flame kernel growth towards a better understanding of cyclic combustion variability in SI engines Energy Conversion and Management 103 895 909 2015 https://doi.org/10.1016/j.enconman.2015.07.031