This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Analysis and Optimization Method for Engine Combustion: Chemical Reaction Analogy Method (CRAM)
Technical Paper
2021-01-0533
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
A new analysis and optimization method for engine combustion was put forward in this study, which is called chemical reaction analogy method (CRAM). This method was illuminated by the similarities between the mathematical spaces of chemical reaction and engine’s combustion. Specifically, the base of the chemical reaction space are the species participating in relevant reactions, while the base of the combustion chamber are the combustion relevant geometrical and operating parameters. In addition, both spaces’ operating rules are nonlinear, and these operating rules show different sensitivities in different directions. Based on this analogy, the mathematical analysis methods of chemical reaction mechanism are introduced into the analysis and optimization of engine combustion, including sensitivity analysis, eigenvalue analysis, etc., which makes the kernel of CRAM. By this method, some typical modes of combustion chamber’s influence on performance were identified. For example, results show there are several optimization directions where NOx, soot, and fuel economy could be improved. Besides this, this paper also introduced the nondimensionalization method of fluid mechanics into the analysis to extend the availability of the method.
Authors
Topic
Citation
Sun, W., Guo, L., Guo, N., Yan, S. et al., "An Analysis and Optimization Method for Engine Combustion: Chemical Reaction Analogy Method (CRAM)," SAE Technical Paper 2021-01-0533, 2021, https://doi.org/10.4271/2021-01-0533.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 | ||
Unnamed Dataset 7 | ||
Unnamed Dataset 8 |
Also In
References
- Dec , J.E. Advanced Compression-Ignition Engines—Understanding the In-cylinder Processes Proceedings of the Combustion Institute 32 2727 2742 2009 10.1016/j.proci.2008.08.008
- Akihama , K. , Takatori , Y. , Inagaki , K. , Sasaki , S. , and et al. Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature SAE International 2001 10.4271/2001-01-0655
- Hardy , W.L. , and Reitz , R.D. A Study of the Effects of High EGR, High Equivalence Ratio, and Mixing Time on Emissions Levels in a Heavy-Duty Diesel Engine for PCCI Combustion SAE Technical Paper 2001-01-0655 2001 https://doi.org/10.4271/2001-01-0655
- O’Connor , J. , and Musculus , M. Post Injections for Soot Reduction in Diesel Engines: A Review of Current Understanding SAE Int J Engines 6 400 421 2013 10.4271/2013-01-0917
- Siebers , D.L. Recent Developments on Diesel Fuel Jets Under Quiescent Conditions Arcoumanis , C. , Kamimoto , T. Flow and Combustion in Reciprocating Engines Berlin, Heidelberg Springer Berlin Heidelberg 2009 257 308 10.1007/978-3-540-68901-0_5.
- Ohsawa , K. , and Kamimoto , T. Advanced Diesel Combustion Arcoumanis , C. , Kamimoto , T. Flow and Combustion in Reciprocating Engines Berlin, Heidelberg Springer Berlin Heidelberg 2009 353 380 10.1007/978-3-540-68901-0_7
- Miles , P.C. Turbulent Flow Structure in Direct-Injection, Swirl-Supported Diesel Engines Arcoumanis , C. , Kamimoto , T. Flow and Combustion in Reciprocating Engines Berlin, Heidelberg Springer Berlin Heidelberg 2009 173 256 10.1007/978-3-540-68901-0_4.
- Ikegami , M. , and Kamimoto , T. Conventional Diesel Combustion Arcoumanis , C. , Kamimoto , T. Flow and Combustion in Reciprocating Engines Berlin, Heidelberg Springer Berlin Heidelberg 2009 309 351 10.1007/978-3-540-68901-0_6.
- Miles , P.C. , and Andersson , Ö. A Review of Design Considerations for Light-Duty Diesel Combustion Systems International Journal of Engine Research 17 6 15 2016 0.1177/1468087415604754
- Shi , Y. , Ge , H.W. , and Reitz , R.D. Computational Optimization of Internal Combustion Engines 15 73 2011 10.1007/978-0-85729-619-1
- Jorge Nocedal , S.J.W. Conjugate Gradient Methods. Numerical Optimization New York, NY Springer New York 2006 101 134
- Myers , R.H. , Montgomery , D.C. , and Anderson-Cook , C.M. Response Surface Methodology: Process and Product Optimization Using Designed Experiments John Wiley & Sons 2013 10.2307/1270613
- Roy , R.K. Design of Experiments Using the Taguchi Approach: 16 Steps to Product and Process Improvement Wiley-Interscience 2001 10.1520/JTE12406J.
- Kennedy , J. Particle Swarm Optimization Sammut , C. , Webb , G.I. Encyclopedia of Machine Learning Boston, MA Springer US 2010 760 766 10.1007/978-0-387-30164-8_630
- Deb , K. , Pratap , A. , Agarwal , S. , and Meyarivan , T. A Fast and Elitist Multiobjective Genetic Algorithm: NSGA-II IEEE Transactions on Evolutionary Computation 6 182 197 2002 2002 10.1109/4235.996017
- Liu , J. , Ma , B. , and Zhao , H. Combustion Parameters Optimization of a Diesel/natural Gas Dual Fuel Engine Using Genetic Algorithm Fuel 260 116365 2020 10.1016/j.fuel.2019.116365.
- Tay , K.L. et al. Development of a Highly Compact and Robust Chemical Reaction Mechanism for Unsaturated Furan Oxidation in Internal Combustion Engines via a Multiobjective Genetic Algorithm and Generalized Polynomial Chaos Energy & Fuels 34 1 936 948 2019 10.1021/acs.energyfuels.9b03272
- Warnatz , J. , Maas , U. , and Dibble , R.W. Reaction Mechanisms. Combustion: Physical and Chemical Fundamentals, Modeling and Simulation, Experiments, Pollutant Formation Berlin, Heidelberg Springer Berlin Heidelberg 1996 85 110 10.1007/978-3-662-04508-4
- Yun , H. , and Reitz , R.D. An Experimental Investigation on the Effect of Post-Injection Strategies on Combustion and Emissions in the Low-Temperature Diesel Combustion Regime Journal of Engineering for Gas Turbines and Power 129 279 286 2007 10.1115/1.2180812.
- Sun , W. , Wang , S. , Huang , Y. , Guo , L. , et al. Numerical and Experimental Investigation of the Emission Limits of a DI Diesel Engine Without Aftertreatment System SAE Technical Paper 2016-01-2314 2016 https://doi.org/10.4271/2016-01-2314
- Stager , L.A. , and Reitz , R.D. Assessment of Diesel Engine Size-Scaling Relationships SAE Technical Paper 2007-01-0127 2007 https://doi.org/10.4271/2007-01-0127
- Shi , Y. , and Reitz , R.D. Study of Diesel Engine Size-Scaling Relationships Based on Turbulence and Chemistry Scales SAE Technical Paper 2008-01-0955 2008 https://doi.org/10.4271/2008-01-0955
- GmbH AL 2008