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Phenomenological Modeling and Experiments to Investigate the Combined Effects of High Pressure and Multiple Injection Strategies with EGR on Combustion and Emission Characteristics of a CRDI Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 15, 2019 by SAE International in United States
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Nowadays, due to stringent emission regulations, it is imperative to incorporate modeling efforts with experiments. This paper presents the development of a phenomenological model to investigate the effects of various in-cylinder strategies on combustion and emission characteristics of a common-rail direct-injection (CRDI) diesel engine. Experiments were conducted on a single-cylinder, supercharged engine with displacement volume of 0.55 l at different operating conditions with various combinations of injection pressure, number of injections involving single injection and multiple injections with two injection pulses, and EGR. Data obtained from experiments was also used for model validation. The model incorporated detailed phenomenological aspects of spray growth, air entrainment, droplet evaporation, wall impingement, ignition delay, premixed and mixing-controlled combustion rates, and emissions of nitrogen oxides (NOx) and diesel soot. The detailed spray configuration provided an edge to the present model in predicting engine combustion and emission characteristics accurately. Results showed that a simultaneous reduction of NOx and soot is possible with an optimized combination of EGR and dwell period between multiple injections at high injection pressure particularly for low operating loads.
CitationSadafale, S., Mittal, M., and Inaba, K., "Phenomenological Modeling and Experiments to Investigate the Combined Effects of High Pressure and Multiple Injection Strategies with EGR on Combustion and Emission Characteristics of a CRDI Diesel Engine," SAE Technical Paper 2019-01-0056, 2019, https://doi.org/10.4271/2019-01-0056.
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- Rajkumar, S. and Sudarshan, G. , “Multi-Zone Phenomenological Model of Combustion and Emission Characteristics and Parametric Investigations for Split Injections and Multiple Injections in Common-Rail Direct-Injection Diesel Engines,” Journal of Automobile Engineering 229(10):1310-1326, 2014, doi:10.1177/0954407014560797.
- Dürnholz, M., Endres, H., and Frisse, P. , “Preinjection A Measure to Optimize the Emission Behavior of DI-Diesel Engine,” SAE Technical Paper 940674, 1994, doi:10.4271/940674.
- Shakal, J. and Martin, J. , “Effects of Auxiliary Injection on Diesel Engine Combustion,” SAE Technical Paper 900398, 1990, doi:10.4271/900398.
- Shundoh, S., Komori, M., Tsujimura, K., and Kobayashi, S. , “NOx Reduction from Diesel Combustion Using Pilot Injection with High Pressure Fuel Injection,” SAE Technical Paper 920461, 1992, doi:10.4271/920461.
- Nehmer, D. and Reitz, R. , “Measurement of the Effect of Injection Rate and Split Injections on Diesel Engine Soot and NOx Emissions,” SAE Technical Paper 940668, 1994, doi:10.4271/940668.
- Beatrice, C., Belardini, P., Bertoli, C., Lisbona, M.G. et al. , “Diesel Combustion Control in Common Rail Engines by New Injection Strategies,” ASME J. Eng. Gas Turbines Power 3(1):23-36, 2002, doi:10.1243/1468087021545513.
- Lee, J., Jeon, J., Park, J., and Bae, C. , “Effect of Multiple Injection Strategies on Emission and Combustion Characteristics in a Single Cylinder Direct-Injection Optical Engine,” SAE Technical Paper 2009-01-1354, 2009, doi:10.4271/2009-01-1354.
- Kohketsu, S., Mori, K., Sakai, K., and Hakozaki, T. , “EGR Technologies for a Turbocharged and Intercooled Heavy-Duty Diesel Engine,” SAE Technical Paper 970340, 1997, doi:10.4271/970340.
- Heywood, J.B. , Internal Combustion Engine Fundamentals (New York: McGraw-Hill, 1988).
- Arai, M., Tabata, M., Hiroyasu, H., and Shimizu, M. , “Disintegrating Process and Spray Characterization of Fuel Jet Injected by a Diesel Nozzle,” SAE Technical Paper 840275, 1984, doi:10.4271/840275.
- 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):569-575, 1983, doi:10.1299/jsme1958.26.569.
- Stiesch, G. and Merker, G.P. , “A Phenomenological Model for Accurate and Time Efficient Prediction of Heat Release and Exhaust Emissions in Direct-Injection Diesel Engines,” SAE Technical Paper 1999-01-1535, 1999, doi:10.4271/1999-01-1535.
- Ricou, F.P. and Spalding, D.B. , “Measurements of Entrainment by Axisymmetrical Turbulent Jets,” Journal of Fluid Mechanics 11(1):21-32, 1961, doi:10.1017/S0022112061000834.
- Hertel, H. , “Strömungsvorgänge beim Freien Hubstrahler,” Luft Farttechnik 8, 1962.
- Payri, F., Benajes, J., and Tinaut, F.V. , “A Phenomenological Combustion Model for Direct-Injection, Compression-Ignition Engines,” Applied Mathematical Modelling 12(3):293-304, 1988, doi:10.1016/0307-904X(88)90037-6.
- Borman, G. and Johnson, J. , “Unsteady Vaporization Histories and Trajectories of Fuel Drops Injected into Swirling Air,” SAE Technical Paper 620271, 1962, doi:10.4271/620271.
- Watson, K.M. , “Prediction of Critical Temperatures and Heats of Vaporization,” Industrial and Engineering Chemistry 23(4):360-364, 1931, doi:10.4271/922228.
- Bhaskar, T. , “Modeling of Combustion and Emission Processes in Direct Injection Diesel Engine,” Ph.D. thesis, Indian Institute of Technology, Madras, India, 2000.
- Lefebvre, H. and McDonell, V. , Atomization and Sprays (Boca Raton: CRC Press, 1988).
- Stiesch, G. , Modelling Engine Spray and Combustion Processes (Berlin Heidelberg: Springer, 2003), doi:10.1007/978-3-662-08790-9.
- Zhang, Y. , “A Simplified Model for Predicting Evaporating Spray Mixing Process in D.I. Diesel Engine,” SAE Technical Paper 922228, 1992, doi:10.4271/922228.
- Ranz, W.E. and Marshall, W.R. , “Evaporation from Drops,” Chem. Eng. Prog. 48(3):141, 173-146, 180, 1952.
- Assanis, D.N., Filipi, Z.S., Fiveland, S.B., and Syrimis, M. , “A Predictive Ignition Delay Correlation under Steady-State and Transient Operation of a Direct Injection Diesel Engine,” Journal of Engineering for Gas Turbine Power 125(2):450-457, 2003, doi:10.1115/1.1563238.
- Magnussen, B.F. and Hjertager, B.H. , “On Mathematical Modeling of Turbulent Combustion with Special Emphasis on Soot Formation and Combustion,” in Proceedings of the 16th Symposium (international) on Combustion, Pittsburgh, PA, August 15-20, 1976.
- Hohenberg, G.F. , “Advanced Approaches for Heat Transfer Calculations,” SAE Technical Paper 790825, 1979, doi:10.4271/790825.
- Jung, D. and Assanis, D. , “Multi-Zone DI Diesel Spray Combustion Model for Cycle Simulation Studies of Engine Performance and Emissions,” SAE Technical Paper 2001-01-1246, 2001, doi:10.4271/2001-01-1246.