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Numerical Parametric Study of a Six-Stroke Gasoline Compression Ignition (GCI) Engine Combustion
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 2, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Numerical investigation of engine performance and emissions of a six-stroke gasoline compression ignition (GCI) engine combustion at low load conditions is presented. In order to identify the effects of additional two strokes of the six-stroke engine cycle on the thermal and chemical conditions of charge mixtures, an in-house multi-dimensional CFD code coupled with high fidelity physical sub-models along with the Chemkin library was employed. The combustion and emissions were calculated using a reduced chemical kinetics mechanism for a 14-component gasoline surrogate fuel. Two power strokes per cycle were achieved using multiple injections during compression strokes.
Parametric variations of injection strategy viz., individual injection timing for both the power strokes and the split ratio that enable the control of combustion phasing of both the power strokes were explored. The computational results suggest that the operability limit of GCI combustion can be effectively expanded by controlling the mixture thermodynamic conditions and achieving optimum mixture stratification. It was uniquely found that the charge mixtures could burn in the mixing-controlled mode during the second power stroke with the injection timing control and result in substantial soot reduction while maintaining high combustion efficiency. Also, the variation of split ratio was found to be effective in controlling the combustion phasing and pressure rise rate for both the power strokes.
CitationRajput, O., Ra, Y., and Ha, K., "Numerical Parametric Study of a Six-Stroke Gasoline Compression Ignition (GCI) Engine Combustion," SAE Technical Paper 2019-01-0207, 2019, https://doi.org/10.4271/2019-01-0207.
Data Sets - Support Documents
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- Arbab, M.I., Masjuki, H.H., Varman, M., Kalam, M.A. et al., “Fuel Properties, Engine Performance and Emission Characteristic of Common Biodiesels as a Renewable and Sustainable Source of Fuel,” Renew Sustain Energy Rev 22:133-147, 2013.
- Agarwal, A.K., Gupta, T., and Kothari, A., “Particulate Emissions from Biodiesel vs Diesel Fueled Compression Ignition Engine,” Renew Sustain Energy Rev 15:3278-3300, 2011.
- Hashizume, T., Miyamoto, T., Akagawa, H., and Tsujimura, K., “Combustion and Emission Characteristics of Multiple Stage Diesel Combustion,” SAE Technical Paper 980505, 1998, doi:10.4271/980505.
- Shimazaki, N., Tsurushima, T., and Nishimura, T., “Dual Mode Combustion Concept with Premixed Diesel Combustion by Direct Injection Near Top Dead Center,” SAE Technical Paper 2003-01-0742, 2003, doi:10.4271/2003-01-0742.
- Risberg, P., Kalghatgi, G., Ångström, H.-E., and Wåhlin, F., “Auto-Ignition Quality of Diesel-Like Fuels in HCCI Engines,” SAE Technical Paper 2005-01-2127, 2005, doi:10.4271/2005-01-2127.
- Kalghatgi, G.T., Risberg, P., and Ångström, H.-E., “Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel,” SAE Technical Paper 2007-01-0006, 2007, doi:10.4271/2007-01-0006.
- Kalghatgi, G.T., “Auto-Ignition Quality of Practical Fuels and Implications for Fuel Requirements of Future SI and HCCI Engines,” SAE Technical Paper 2005-01-0239, 2005, doi:10.4271/2005-01-0239.
- Kalghatgi, G.T., Risberg, P., and Ångström, H.-E., “Advantages of Fuels with High Resistance to Auto-Ignition in Late-Injection, Low-Temperature, Compression Ignition Combustion,” SAE Technical Paper 2006-01-3385, 2006, doi:10.4271/2006-01-3385.
- Weall, A.J. and Collings, N., “Investigation into Partially Premixed Combustion in a Light Duty Multi-Cylinder Diesel Engine Fuelled with a Mixture of Gasoline and Diesel,” SAE Technical Paper 2007-01-4058, 2007, doi:10.4271/2007-01-4058.
- Hildingsson, L., Kalghatgi, G., Tait, N., Johansson, B. et al., “Fuel Octane Effects in the Partially Premixed Combustion Regime in Compression Ignition Engines,” SAE Technical Paper 2009-01-2648, 2009, doi:10.4271/2009-01-2648.
- Ra, Y., Yun, J.E., and Reitz, R.D., “Numerical Simulation of Diesel and Gasoline-Fueled Compression Ignition Combustion with High Pressure Late Direct Injection,” Int. J. Vehicle Design 50(1/2/3/4):3-34, 2009.
- Ra, Y., Yun, J.E., and Reitz, R.D., “Numerical Parametric Study of Diesel Engine Operation with Gasoline,” Combust. Sci. Tech. 181:350-378, 2009.
- Ra, Y., Loeper, P., Reitz, R., Andrie, M. et al., “Study of High Speed Gasoline Direct Injection Compression Ignition (GDICI) Engine Operation in the LTC Regime,” SAE Int. J. Engines 4(1):1412-1430, 2011, doi:10.4271/2011-01-1182.
- Ra, Y., Loeper, P., Andrie, M., Krieger, R. et al., “Gasoline DICI Engine Operation in the LTC Regime Using Triple- Pulse Injection,” SAE Int. J. Engines 5(3):1109-1132, 2012, doi:10.4271/2012-01-1131.
- Rajput, O., Ra, Y., Ha, K., and Son, Y., “Numerical Analysis of a Six-Stroke Gasoline Compression Ignition (GCI) Engine Combustion with Continuously Variable Valve Duration (CVVD) Control,” presented at ASME-ICEF 2018, USA, Nov. 4-7, 2018.
- Ha, K.-P., Kim, W.T., Ryu, I.S., and Son, Y.S., “Development of Continuously Variable Valve Duration (CVVD) Engine,” in 25th Aachen Colloquium Automobile and Engine Technology, 2016.
- Shirayanagi, I. and Shirayanagi, Y., “Six-Stroke Gasoline Engine - High-Efficiency, Water-Jet-Cooled Exhaust Valves,” SAE Technical Paper 2007-08-0372, 2007.
- Amsden, A.A., “KIVA-3V, Release 2, Improvements to KIVA-3V,” LA-UR-99-915, 1999.
- Kee, R.J., Rupley, F.M., and Miller, J.A., “CHEMKIN-II: A FORTRAN Chemical Kinetics Package for the Analysis of Gas Phase Chemical Kinetics,” Sandia Report SAND 89-8009, 1989.
- Perini, F., Galligani, E., and Reitz, R.D., “An Analytical Jacobian Approach to Sparse Reaction Kinetics for Computationally Efficient Combustion Modelling with Large Reaction Mechanisms,” Energy and Fuels 26(8):4804-4822, 2012.
- Beale, J.C. and Reitz, R.D., “Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model,” Atomization and Sprays 9:623-650, 1999.
- Liu, A., Mather, D., and Reitz, R., “Modeling the Effects of Drop Drag and Breakup on Fuel Sprays,” SAE Technical Paper 930072, 1993, doi:10.4271/930072.
- Taylor, G.I., “The Shape and Acceleration of a Drop in High Speed Air Stream,” in The Scientific Papers of G.I. Taylor, ed. Batchelor, G.K., Vol. III (Cambridge, University Press, 1963).
- Ra, Y. and Reitz, R.D., “The Application of a Multi-Component Vaporization Model to Gasoline Direct Injection Engines,” Int. J. Engine Res. 4:193-218, 2003.
- Ra, Y. and Reitz, R.D., “A Model for Droplet Vaporization for Use in Gasoline and HCCI Engine Applications,” J. Eng. Gas Turb. Power 126:422-428, 2004.
- Ra, Y. and Reitz, R.D., “A Vaporization Model for Discrete Multi-Component Fuel Sprays,” Int. J. Multiphase Flow 35:101-117, 2009.
- O'Rourke, P. and Amsden, A., “A Particle Numerical Model for Wall Film Dynamics in Port-Injected Engines,” SAE Technical Paper 961961, 1996, doi:10.4271/961961.
- Han, Z. and Reitz, R.D., “Turbulence Modeling of Internal Combustion Engines Using RNG k-e models,” Comb. Sci. Tech. 106:267-295, 1995.
- Ra, Y., Reitz, R., McFarlane, J., and Daw, C., “Effects of Fuel Physical Properties on Diesel Engine Combustion using Diesel and Bio-diesel Fuels,” SAE Int. J. Fuels Lubr. 1(1):703-718, 2009, doi:10.4271/2008-01-1379.
- Ra, Y. and Reitz, R.D., “A Combustion Model for Multi-Component Fuels Using a Physical Surrogate Group Chemistry Representation (PSGCR),” Combustion and Flame 162:3456-3481, 2015.
- Ra, Y. and Reitz, R.D., “A Combustion Model for IC Engine Combustion Simulations with Multi-Component Fuels,” Combust. Flame 158(1):69-90, 2011.
- Su, X., Ra, Y., and Reitz, R., “A Surrogate Fuel Formulation Approach for Real Transportation Fuels with Application to Multi-Dimensional Engine Simulations,” SAE Int. J. Fuels Lubr. 7(1):236-249, 2014, doi:10.4271/2014-01-1464.
- Hessel, R., Foster, D., Aceves, S., Davisson, M. et al., “Modeling Iso-octane HCCI Using CFD with Multi-Zone Detailed Chemistry; Comparison to Detailed Speciation Data Over a Range of Lean Equivalence Ratios,” SAE Technical Paper 2008-01-0047, 2008, doi:10.4271/2008-01-0047.
- Fieweger, K., Blumenthal, R., and Adomeit, G., “Self-Ignition of S.I. Engine Model Fuels: A Shock Tube Investigation at High Pressure,” Combustion and Flame 109:599-619, 1997.
- Genzale, C., Reitz, R., and Musculus, M., “Effects of Piston Bowl Geometry on Mixture Development and Late-Injection Low-Temperature Combustion in a Heavy-Duty Diesel Engine,” SAE Int. J. Engines 1(1):913-937, 2009, doi:10.4271/2008-01-1330.
- Kalghatgi, G., Risberg, P., and Ångström, H., “Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel,” SAE Technical Paper 2007-01-0006, 2007, doi:10.4271/2007-01-0006.
- Kong, S.C., Sun, Y., and Reitz, R.D., “Modeling Diesel Spray Flame Liftoff, Sooting Tendency, and NOx Emissions Using Detailed Chemistry with Phenomenological Soot Model,” J. Eng. Gas Turbines Power 129(1):245-251, Dec 15, 2005, doi:10.1115/1.2181596.
- Hiroyasu, H. and Kadota, T., “Models for Combustion and Formation of Nitric Oxide and Soot in Direct Injection Diesel Engines,” SAE Technical Paper 760129, 1976, doi:10.4271/760129.