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Numerical Study of Effects of Fuel Injection Timings on CAI/HCCI Combustion in a Four-Stroke GDI Engine
Technical Paper
2005-01-0144
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Controlled Auto-Ignition (CAI) combustion, also known as Homogeneous Charge Compression Ignition (HCCI) was achieved by trapping residuals with early exhaust valve closure in conjunction with direct injection. Multi-cycle 3D engine simulations have been carried out for parametric study on four different injection timings, in order to better understand the effects of injection timings on in-cylinder mixing and CAI combustion. The full engine cycle simulation including complete gas exchange and combustion processes was carried out over several cycles in order to obtain the stable cycle for analysis. The combustion models used in the present study are the Shell auto-ignition model and the characteristic-time combustion model, which were modified to take the high level of EGR into consideration. A liquid sheet breakup spray model was used for the droplet breakup processes. The analyses show that the injection timing plays an important role in affecting the in-cylinder air/fuel mixing and mixture temperature, which in turn affects the CAI combustion and engine performance.
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Citation
Cao, L., Zhao, H., Jiang, X., and Kalian, N., "Numerical Study of Effects of Fuel Injection Timings on CAI/HCCI Combustion in a Four-Stroke GDI Engine," SAE Technical Paper 2005-01-0144, 2005, https://doi.org/10.4271/2005-01-0144.Also In
Homogeneous Charge Compression Ignition (HCCI) Combustion 2005
Number: SP-1963; Published: 2005-04-11
Number: SP-1963; Published: 2005-04-11
Homogeneous Charge Compression Ignition (HCCI) Combustion on CD-ROM from the SAE 2005 World Congress
Number: SP-1982CD; Published: 2005-04-11
Number: SP-1982CD; Published: 2005-04-11
References
- Zhao Hua Li Jian “Performance and Analysis of a 4-stroke Multi-Cylinder Gasoline Engine with CAI Combustion” SAE Paper 2002-01-0420 2002
- Oakley Aaron zhao Hua Ladommatos Nicos “Experimental Studies on Controlled Auto-Ignition (CAI) Combustion of Gasoline in a 4-Stroke Engine” SAE Paper 2001-01-1030 2001
- Christensen, M. Hultqvist A. Johansson, B. “Demonstrating the Multi Fuel Capability of a Homogeneous Charge Compression Ignition Engine with Variable Compression Ratio” SAE Paper 1999-01-03679 1999
- Li Jian Zhao Hua Ladommatos Nicos “ Research and Development of Controlled Auto-ignition (CAI) Combustion in a 4-stroke Multi-cylinder Gasoline Engine” SAE Paper 2001-01-3608 2001
- Law D. Kemp, D. Allen, J. “ Controlled Combustion in an IC-engine with Fully Variable Valve Train” SAE Paper 2001-01-0251 2001
- Chen R. Milovanovic, N. “ A Computational Study into the Effect of Exhaust Gas Recycling on Homogeneous Charge Compression Ignition Combustion in Internal Combustion Engine Fuelled with Methane” International Journal of Thermal Sciences 41 805 813 2002
- Xu Hongming Fu, H. Williams H. Shilling I. “ Modeling Study of Combustion and Gas Exchange in a HCCI(CAI) Engine” SAE Paper 2002-02-0114 2002
- Willand, M. Nieberding, R. Vent, G. Enderie, C. “The Knocking Syndrome-its Cure and its Potential” SAE Paper 982483 1998
- Marriott, C.D. Reitz, R.D. “Experimental Investigation of Direct Injection -Gasoline for Premixed Compression Ignited Combustion Phasing Control” SAE Paper 2002-01-0418 2002
- Urushihara, T. Hiraya, K. et al “Expansion of HCCI Operating Region by the Combination of Direct Fuel Injection, Negative Valve Overlap and Internal Fuel Reformation” SAE Paper 2003 2003
- Lavy, W. Dabadie, J. Willand, J. Juretzka, A. Ma, T. Lendresse, Y. Schulz, C. Kramer, H. Zhao, H. Damiano, L. “ Innovative ultra-low Nox Controlled Auto-ignition Combustion Process for Gasoline Engines: the 4-SPACE Project” SAE Paper 2000-01-1873 2000
- Amsden, A.A. “KIVA-3V: “A Block-Structured KIVA Program for Engines with Vertical or Canted Valves” Los Alamos National Laboratory Report LA-13313-MS 1997
- Han Z. Reitz, R.D. “A Temperature Wall Function Formulation for Variable-Density Turbulent Flows with Application to Engine Convective Heat Transfer Modeling” Int. Journal of Heat and Mass Transfer 40 3 613 625 1997
- Han Z. Fan L. Reitz, R.D. “Multidimensional Modeling of Spray Atomization and Air-Fuel Mixing in a Direct-Injection Spark-Ignition Engine” SAE Paper 970884 1997
- Halstead, M. Prothero, A. Quinn, C.P. “The Autoignition of Hydro-Carbon Fuels at High Temperatures and Pressures-Fitting of a Mathematical Model” Combustion and Flame 30 45 60 1977
- Abraham, J. Bracco, F.V. Reitz, R.D. “Comparisons of Computed and Measured Premixed Charge Engine Combustion” Combustion and Flame 60 309 322 1985
- Reitz, R.D. Kuo, T.W. “ Modeling of HC Emissions due to Crevice Flows in Premixed-Charge Engines” SAE Paper 892085 1989
- Kong, S. C. Ayoub, N. Reitz, R.D. “Modeling Combustion in Compression Ignition Homogeneous Charge Engines” SAE Paper 920512 1992
- Kuo, T.W. Reitz, R.D. “Three-Dimensional Computations of Combustion in Premixed-Charge and Direct-Injected Two-Stroke Engines” SAE Paper 920425 1992
- Cao Li Zhao Hua Jiang Xi Kalian, N. “Effects of Intake Valve Timing on Premixed Gasoline Engine with CAI Combustion” SAE Paper 2004-01-2953 2004
- Zhao, H. Peng Z. Williams J. Ladommatos, N. “ Understanding the Effects of Recycled Burnt Gases on the Controlled Autoigntion (CAI) Combustion in Four-stroke Gasoline Engines” SAE Paper 2001-01-3607 2001
- Suh E.S. Rutland, C.J. “Numerical Study of Fuel/Air Mixture Preparation in a GDI Engine” SAE Paper 1999-01-3657 1999
- Heywood, J.B. “ Internal Combustion Engine Fundamentals” 1989 402 406
- Aceves, S.M. Flowers, D.L. Martines, J. Smith, J. et al “A Sequential Fluid-Mechanic Chemical-Kinetic Model of Propane HCCI Combustion” SAE Paper 2001-01-1027 2001
- Beale, J.C. Reitz, R.D. “Modeling Spray Atomization with the Kelvin-Helmholtz/Reyleigh-Taylor Hybrid Model” Atomization and Spray 9 623 650 1999
- Juneja, H. Ra, Y. Reitz, R.D. “Optimization of Injection Rate Shape Using Active Control of Fuel Injection” SAE Paper 2004-01-0530 2004
- Koopmans, L. Wallesten, J. “ Location of the First Auto-ignition Sites for Two HCCI Systems in a Direst Injection Engine” SAE Paper 2004-01-0564 2004
- Standing Richard Kalian Navin Ma Tom zhao Hua “Effects of Injection Timing and Valve Timings on CAI Operation in a Multi-Cylinder DI Gasoline Engine” SAE Paper 05P-161 2005