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Phenomenological 0-Dimensional Combustion Model for Spark-Ignition Natural Gas Engine Equipped with Pre-Chamber
Technical Paper
2016-01-0556
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
3D CFD (Computational Fluid Dynamics) is widely used as a useful design tool because of its efficiency in engine development. In contrast, the computational time in 3D CFD with chemical reaction calculations is much longer than the 0D/1D CAD (Computer Aided Design) tools. Computational time reduction in engine combustion tools is necessary for more efficient engine development. The objective in this research is to develop a phenomenological 0D combustion model for a spark ignition engine. We especially focused on a spark ignition pre-chamber-type gas engine which has a spark plug in the pre-chamber. The combustion process in a pre-chambertype gas engine is complicated and difficult to be modeled. Therefore, in the presented work, the combustion process and heat release rate is analyzed in detail. The proposed methodology consists of three major processes. Firstly, turbulence in the pre-chamber is generated by compressed gas flow from the main chamber during the compression stroke. Secondly, the heat release rate generated by a torch jet which flows from the pre-chamber into the main chamber is modeled using gas jet theory. It describes gas entrainment flow around the nozzle. Thirdly, the heat release rate generated by flame propagation in the pre- and main chambers is modeled using the turbulent flame speed and flame surface area. Finally, the model is validated with available experimental data and good agreements with the measured heat release rate, and the cylinder pressure history was obtained. The calculation between intake valve closing timing and exhaust valve opening timing was finished in a few seconds. Our model greatly reduced the computational time compared to the 3D CFD combustion model.
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Hiraoka, K., Nomura, K., Yuuki, A., Oda, Y. et al., "Phenomenological 0-Dimensional Combustion Model for Spark-Ignition Natural Gas Engine Equipped with Pre-Chamber," SAE Technical Paper 2016-01-0556, 2016, https://doi.org/10.4271/2016-01-0556.Also In
References
- Trapp , C. , Birgel , N. , Spyra , N. et al. GE’s All New J920 Gas Engine - a Smart Accretion of Two-Stage Turbocharging, Ultra Lean Combustion Concept & Intelligent Controls CIMAC 2013 27th CIMAC World Congress in Shanghai
- Ouellette , P and Hill , P Turbulent Transient Gas Injections J. Fluids Eng 122 4 743 752 10.1115/1.1319845
- Ra , Y. , Kong , S. , Reitz , R. , Rutland , C. et al. Multidimensional Modeling of Transient Gas Jet Injection Using Coarse Computational Grids SAE Technical Paper 2005-01-0208 2005 10.4271/2005-01-0208
- Hessel , R. , Abani , N. , Aceves , S. , and Flowers , D. Gaseous Fuel Injection Modeling Using a Gaseous Sphere Injection Methodology SAE Technical Paper 2006-01-3265 2006 10.4271/2006-01-3265
- Liyan , F. , Jun , Z. , Bo , L. , Lei , C. et al. Research on the Characteristics of Enrichment Fuel Injection Process in the Pre-Chamber of a Marine Gas Engine SAE Technical Paper 2015-01-1961 2015 10.4271/2015-01-1961
- Hiroyasu , H. , Kadota , T. and Arai , M. Development and Use of a Spray Combustion Modeling to Predict Diesel Engine Efficiency and Pollutant Emissions (Part 1, Combustion Modeling) Bulletin of the JSME 26 214 April 1983
- Inagaki , K. , Ueda , M. , Mizuta , J. , Nakakita , K. et al. Universal Diesel Engine Simulator (UniDES): 1st Report: Phenomenological Multi-Zone PDF Model for Predicting the Transient Behavior of Diesel Engine Combustion SAE Technical Paper 2008-01-0843 2008 10.4271/2008-01-0843
- Grekhov , L. , Mahkamov , K. , and Kuleshov , A. Optimization of Mixture Formation and Combustion in Two-Stroke OP Engine Using Innovative Diesel Spray Combustion Model and Fuel System Simulation Software SAE Technical Paper 2015-01-1859 2015 10.4271/2015-01-1859
- Vitek , O. , Macek , J. , Poetsch , C. , and Tatschl , R. Modeling Cycle-to-Cycle Variations in 0-D/1-D Simulation by Means of Combustion Model Parameter Perturbations based on Statistics of Cycle-Resolved Data SAE Int. J. Engines 6 2 1075 1098 2013 10.4271/2013-01-1314
- Ikegami , M. , Shioji , M. , Koike , M. A stochastic approach to model the combustion process in direct-injection diesel engines Symposium (International) on Combustion 20 1 217 224 1985 10.1016/S0082-0784(85)80506-3
- Tabaczynski , R.D. , Trinker , F.H. , Shannon , B.A.S. Further refinement and validation of a turbulent flame propagation model for spark-ignition engines Combustion and Flame 39 2 111 121 10.1016/0010-2180(80)90011-5
- Singh , S. , Reitz , R. , Wickman , D. , Stanton , D. et al. Development of a Hybrid, Auto-Ignition/Flame-Propagation Model and Validation Against Engine Experiments and Flame Liftoff SAE Technical Paper 2007-01-0171 2007 10.4271/2007-01-0171
- Peters , N. Turbulent Combustion Cambridge University Press 10.1017/CBO9780511550485
- Woschni , G. A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine SAE Technical Paper 670931 1967 10.4271/670931