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Modeling and Simulation of a Dual Fuel (Diesel/Natural Gas) Engine With Multidimensional CFD
Technical Paper
2003-01-0755
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A dual fuel engine simulation model was formulated and the combustion process of a diesel/natural gas dual fuel engine was studied using an updated KIVA-3V Computational Fluid Dynamic (CFD) code. The dual fuel engine ignition and combustion process is complicated since it includes diesel injection, atomization and ignition, superimposed with premixed natural gas combustion. However, understanding of the combustion process is critical for engine performance optimization. Starting from a previously validated Characteristic-Timescale diesel combustion model, a natural gas combustion model was implemented and added to simulate the ignition and combustion process in a dual fuel bus engine. Available engine test data were used for validation of both the diesel-only and the premixed spark-ignition operation regimes. A new formulation of the Characteristic-Timescale combustion model was then introduced to allow smooth transition between the combustion regimes. The models were applied to suggest methods for further engine improvement for better emission performance. The model was extended to consider the direct injection natural gas case by modeling gas jet injection. A comparison of the combustion and emission of the two different gas supply methods was conducted. The research demonstrated that multidimensional modeling is useful for dual fuel engine study and optimization.
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Zhang, Y., Kong, S., and Reitz, R., "Modeling and Simulation of a Dual Fuel (Diesel/Natural Gas) Engine With Multidimensional CFD," SAE Technical Paper 2003-01-0755, 2003, https://doi.org/10.4271/2003-01-0755.Also In
Ci Engine Combustion Processes & Performance With Alternative Fuels
Number: SP-1737; Published: 2003-03-03
Number: SP-1737; Published: 2003-03-03
References
- Hountalas, D.T. Papagiannakis, R. G. “A Simulation Model for the Combustion process of Natural Gas Engines with Pilot Diesel Fuel as an Ignition Source,” SAE 2001-01-1245 2001
- Zhang, D. Frankel, S. H. “A Numerical Study of Natural Gas Combustion in a lean burn Engines,” Fuel 77 12 1339 1347 1998
- Hountalas, D.T. Papagiannakis, R. G. “Development of a Simulation Model for Direct Injection, Dual fuel, Diesel- Natural Gas Engines,” SAE 2001-01-0286 2001
- Fraser, R.A. Siebers, D.L. Edwards C.F “Auto-ignition of Methane and Natural Gas in a Simulated Diesel Environment,” SAE 910227 1991
- Naber, J.D. Siebers, D.L. Caton, J.A Westbrook, C.K. Di Julio, S.S. “Natural Gas Auto-ignition under Diesel Condition: Experiments and Chemical Kinetic Modeling,” SAE 942034 1994
- Westbrook, C. K. Dryer, F.L. “Predication of Laminar flame properties of methane-air mixtures” Combustion and flame 37 171 1980
- Zhou, G. Karim, G.A. “A Comprehensive Kinetic Model for the Oxidation of Methane,” Emerging Energy Technology ASME 57 1994
- Karim, G.A. “Combustion in Gas Fueled Compression-Ignition Engines” ASME ICE 35-1 2000
- Uyehara, O. A “Prechamber for Lean Burn for Low NOx,” SAE 950612 1995
- Hampson, G. J. Xin, J. Liu, Y. Han, Z. Y. Reitz, R.D. “Modeling of NOx Emissions with Comparison to Exhaust Measurements for a Gas Fuel Converted Heavy-Duty Diesel Engines,” SAE Paper 961967 1996
- Kong, S.C. Han, Z.W. Reitz, R.D. “The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulations,” SAE Paper 950278 1995
- Patterson, M.A. Reitz, R.D. “Modeling the Effects of Fuel Spray Characteristics on Diesel Engine Combustion and Emissions,” SAE Paper 980131 1998
- Han, Z.Y. 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
- Mather, D.K. Reitz, R.D. “Modeling the Effects of Auxiliary Gas Injection on Diesel Engine Combustion and Emissions,” SAE paper 2000-01-0657 2000
- Kong, S.C. Reitz, R.D. “Multidimensional Modeling of Diesel Ignition and Combustion Using a Multistep Kinetics Model,” Journal of Engineering for Gas Turbines and Power 115 781 1993
- Ewan, B. C. R. Moore, R.T. “Structure and Velocity Measurements in Underexpanded Jets” Combustion Science and Technology 9 3 358 1986
- Quelette, P. Direct injection of Natural Gas for Diesel Engine Fueling PhD thesis Department of Mechanical Engineering, University of British Columbia 1996
- Danluck, P. R. “Development of a High Output Dual Fuel Engine,” ASME paper 93-ICE-20 1993