This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Computational Investigation into the Effects of Spray Targeting, Bowl Geometry and Swirl Ratio for Low-Temperature Combustion in a Heavy-Duty Diesel Engine
Technical Paper
2007-01-0119
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A computational study was performed to evaluate the effects of bowl geometry, fuel spray targeting and swirl ratio under highly diluted, low-temperature combustion conditions in a heavy-duty diesel engine. This study is used to examine aspects of low-temperature combustion that are affected by mixing processes and offers insight into the effect these processes have on emissions formation and oxidation. The foundation for this exploratory study stems from a large data set which was generated using a genetic algorithm optimization methodology. The main results suggest that an optimal combination of spray targeting, swirl ratio and bowl geometry exist to simultaneously minimize emissions formation and improve soot and CO oxidation rates. Spray targeting was found to have a significant impact on the emissions and fuel consumption performance, and was furthermore found to be the most influential design parameter explored in this study. Specifically, variations in spray targeting were found to largely affect pre-combustion mixing processes and charge preparation, resulting in marked effects on soot formation levels. Swirl ratio was found to alter both pre-combustion mixture preparation and late-cycle oxidation processes, while bowl geometry was found to predominantly affect mixing processes through an interaction with swirl ratio levels. This study underscores the need to carefully consider mixing processes induced by bowl geometry and spray/bowl matching in the design of low-temperature diesel combustion systems.
Recommended Content
Authors
Topic
Citation
Genzale, C., Reitz, R., and Wickman, D., "A Computational Investigation into the Effects of Spray Targeting, Bowl Geometry and Swirl Ratio for Low-Temperature Combustion in a Heavy-Duty Diesel Engine," SAE Technical Paper 2007-01-0119, 2007, https://doi.org/10.4271/2007-01-0119.Also In
References
- Kimura S. Aoki O. Kitahara Y. Aiyoshizawa E. 2001 Ultra-Clean Combustion Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards SAE paper 2001-01-0200
- Akihama K. Takatori Y. Inagaki K. Sasaki S. Dean, A.M. 2001 Meachanism of the Smokeless Rich Diesel Combustion by Reducing Temperature SAE paper 2001-01-0655
- Walter B. Gatellier B 2002 Development of the High Power NADI Concept Using Dual Mode Diesel Combustion to Achieve Zero NOx and Particulate Emissions SAE paper 2002-01-1744
- Minato A. Tanaka T. Nishimura T. 2005 Investigation of Premixed Lean Diesel Combustion with Ultra High Pressure Injection SAE paper 2005-01-0914
- Kanda T. Hakozaki T. Uchimoto T. Hatano J. Kitayama N. Sono H 2005 PCCI Operation with Early Injection of Conventional Diesel Fuel SAE paper 2005-01-0378
- Takeda Y. Nakagome K. Niimura K. 1996 Emission Characteristics of Premixed Lean Diesel Combustion with Extremely Early Staged Fuel Injection SAE paper 961163
- Idicheria, C.A. Pickett, L.M. 2005 Soot Formation in Diesel Combustion under High-EGR Conditions SAE paper 2005-01-3834
- Kook S. Bae C. Miles P.C. Choi D. Bergin, M. Reitz R.D. 2006 The Effect of Swirl Ratio and Fuel Injection Parameters on CO Emission and Fuel Conversion Efficiency for High-Dilution, Low-Temperature Combustion in an Automotive Diesel Engine SAE paper 2006-01-0197
- Miles P.C. Choi D. Pickett L.M. Singh I.P. Henein N. RempelEwert B.A. Yun H. Reitz R.D. 2004 Rate-limiting Processes in Late-Injection, Low-Temperature Diesel Combustion Regimes Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines (THIESEL) 2004
- Singh S. Reitz R.D. Musculus M.P.B. 2005 2-Color Thermometry Experiments and High Speed Imaging of Multi-Mode Diesel Engine Combustion SAE paper 2005-01-3842
- Coello Coello C.A. Pulido G.T. 2001 A Micro-Genetic Algorithm for Multiobjective Optimization First International Conference on Evolutionary Multi-Criterion Optimization, Lecture Notes in Computer Science 1993 126 140
- Bergin M.J. Hessel R.P. Reitz R.D. 2005 Optimization of a Large Diesel Engine via Spin Spray Combustion SAE paper 2005-01-0916
- De Risi A. Donateo T. Laforgia D. 2003 Optimization of the Combustion Chamber of Direct Injection Diesel Engines SAE paper 2003-01-1064
- Liu Y. Reitz R.D. 2005 Optimizing HSDI Diesel Combustion and Emissions Using Multiple Injection Strategies SAE paper 2005-01-0212
- Senecal P.K. Pomraning E. Richards K.J. 2002 Multi-Mode Genetic Algorithm Optimization of Combustion Chamber Geometry for Low Emissions SAE paper 2002-01-0958
- Krishnakumar K. 1989 Micro-Genetic Algorithms for Stationary and Non-Stationary Function Optimization SPIE Proceedings: Intelligent Control and Adaptive Systems 289 296
- Gu C. 2002 Smoothing Spline ANOVA Models Springer-Verlag
- Lin Y. Zhang H.H. 2003 Component Selection and Smoothing in Smoothing Spline Analysis of Variance Models Institute of Statistics Mimeo Series 2556 NUCS
- Liu Y. Lu F. Reitz R.D. 2006 The Use of Non-Parametric Regression to Investigate the Sensitivities of HSDI Diesel Emissions and Fuel Consumption to Engine Parameters Int. J. Engine Res. 7 167 180
- Genzale C. Wickman D. Reitz R.D. 2006 An Advanced Optimization Methodology for Understanding the Effects of Piston Bowl Design in Low-Temperature Diesel Combustion Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines (THIESEL) 2006
- Han Z. Reitz R.D. 1995 Turbulence Modeling of Internal Combustion Engines Using RNG k- ε models Combustion Science and Technology 106 267 295
- Reitz R.D. 1987 Modeling Atomization Processes in High-Pressure Vaporization Sprays Atomization and Spray Technology 3 309 337
- Beale J.C. Reitz R.D. 1999 Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model Atomization and Sprays 9 623 650
- Halstead M. P. Kirsch L. J. Prothero A. Quinn C. P. 1975 A mathematical model for hydrocarbon autoignition at high pressures Combustion and Flame
- Kong S.-C. Han Z. Reitz R.D. 1995 The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation SAE paper 950278
- Abraham J. Bracco F.V. Reitz R.D. 1985 Comparisons of Computed and Measured Premixed Charge Engine Combustion Combustion and Flame 60 309 322
- Hiroyasu H. Kadota T 1976 Models for Combustion and Formation of Nitric Oxide and Soot in DI Diesel Engines SAE paper 760129
- Hampson G.J. Reitz R.D. 1998 Two-Color Imaging of In-Cylinder Soot Concentration and Temperature in a Heavy-Duty DI Diesel Engine with Comparison to Multidimensional Modeling for Single and Split Injections SAE paper 980524
- Heywood J.B. 1998 Internal Combustion Engine Fundamentals McGraw-Hill Company
- Patel A. Kong S.-C. Reitz R.D. 2004 Development and Validation of a Reduced Reaction Mechanism for HCCI Engine Simulations SAE 2004-01-0558
- Kong S.C. Patel A. Reitz R.D. 2004 Development and Application of Detailed Chemistry-Based CFD Models for Diesel PCCI Engine Simulations SAE paper 2004-30-0030
- Wickman D.D. 2003 Department of Mechanical Engineering, University of Wisconsin-Madison
- Meuller C.J. 2005 The Quantification of Mixture Stoichiometry When Fuel Molecules Contain Oxidizer Elements or Oxidizer Elements Contain Fuel Elements SAE paper 2005-01-3705