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Experimental and Numerical Analysis of Pre-Chamber Combustion Systems for Lean Burn Gas Engines
Technical Paper
2019-01-0260
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The current trend in automobiles is towards electrical vehicles, but for the most part these vehicles still require an internal combustion engine to provide additional range and flexibility. These engines are under stringent emissions regulations, in particular, for the reduction of CO2. Gas engines which run lean burn combustion systems provide a viable route to these emission reductions, however designing these engines to provide sustainable and controlled combustion under lean conditions at λ=2.0 is challenging. To address this challenge, it is possible to use a scavenged Pre-Chamber Ignition (PCI) system which can deliver favorable conditions for ignition close to the spark plug. The lean charge in the main combustion chamber is then ignited by flame jets emanating from the pre-chamber nozzles. Accurate prediction of flame kernel development and propagation is essential for the analysis of PCI systems. A modelling approach is proposed based on the Dynamic Discrete Particle Ignition Kernel model coupled with the G-equation combustion model. The model is validated for an air/methane academic benchmark. The approach is then applied to the investigation of performance of three pre-chamber designs developed within Horizon 2020 GASON project in conjunction with the experimental investigation of these pre-chambers mounted on Rapid Compression Expansion Machine (RCEM). The investigated pre-chamber designs vary with respect to the tangential nozzle angle and volume. The study focusses on a lean limit of the proposed system’s operation with the main charge at λ=2.0 and a variation of pre-chamber design and scavenging level. The comparison of the simulation results with the experimental observations demonstrates good accuracy of the developed model. In addition, the combined experimental and modelling provides insights into the effect of pre-chamber geometry on potential performance.
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Authors
- Evgeniy Shapiro - Ricardo UK Ltd
- Nick Tiney - Ricardo UK Ltd
- Panagiotis Kyrtatos - Swiss Federal Institute of Technology
- Maria Kotzagianni - Swiss Federal Institute of Technology
- Michele Bolla - Swiss Federal Institute of Technology
- Konstantinos Boulouchos - Swiss Federal Institute of Technology
- Gunesh Tallu - Volkswagen AG
- Gwendal Lucas - Volkswagen AG
- Michael Weissner - Volkswagen AG
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Citation
Shapiro, E., Tiney, N., Kyrtatos, P., Kotzagianni, M. et al., "Experimental and Numerical Analysis of Pre-Chamber Combustion Systems for Lean Burn Gas Engines," SAE Technical Paper 2019-01-0260, 2019, https://doi.org/10.4271/2019-01-0260.Data Sets - Support Documents
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References
- Ricardo, H.R., “Recent Work on the Internal Combustion Engine,” SAE Technical Paper 220001, 1922, doi:10.4271/220001.
- Toulson, E., Schock, H.J., and Attard, W.P., “A Review of Pre-Chamber Initiated Jet Ignition Combustion Systems,” SAE Technical Paper 2010-01-2263, 2010, doi:10.4271/2010-01-2263.
- Gussak, L., Karpov, V., and Tikhonov, Y., “The Application of Lag-Process in Prechamber Engines,” SAE Technical Paper 790692, 1979, doi:10.4271/790692.
- Attard, W., Kohn, J., and Parsons, P., “Ignition Energy Development for a Spark Initiated Combustion System Capable of High Load, High Efficiency and Near Zero NOx Emissions,” SAE Int. J. Engines 3(2):481-496, 2010, doi:10.4271/2010-32-0088.
- Horizon 2020 GASON Project, http://gason.eu/.
- Soltic, P., Hilfiker, T., Hänggi, S., Hutter, R. et al., “Ignition and Combustion Concepts for Lean Operated Passenger Car Natural Gas Engines,” in Proc. 12th Conference on Gaseous-Fuel Powered Vehicles, Stuttgart, 2017.
- Lucas, G., Tallu, G. and Weißner, M., "CFD-Based Development of an Ignition Chamber for a Lean and Highly Efficient CNG Combustion", in Proc. THIESEL 2018 Conference on Thermo- and Fluid Dynamic Processes in Direct Injection Engines, 2018.
- Vlaskos, I., Majer, J., Letrich M., and Kolda, J., “Pre-Chamber Design Criteria for High Efficiency Gas Engines,” in Proc. 28th CIMAC World Congress, Helsinki, 2016.
- Schlatter, B. Schneider, Y.-M., and Wright, K. Boulouchos, Experimental Study of Ignition and Combustion Characteristics of a Diesel Pilot Spray in a Lean Premixed Methane/Air Charge using a Rapid Compression Expansion Machine, SAE Technical Paper 2012-01-0825, 2012, doi:10.4271/2012-01-0825
- Testem, “Technical Manual TeRCM-K48: Rapid Compression Machine for In-Cylinder Spray Development and Combustion Processes Analysis,” Testem - Gesellschaft für Mess- und Datentechnik GmbH, Hoflach No. 5, D-82239 Hoflach/Alling, 2004.
- Weissner M., Beger F., Klüting C., Lucas G. et al., “GasOn: A Lean CNG Combstion for Highest Engine Efficiencies above 43% Utilizing an Ignition Chamber,” in SAE Torino CO2 Reduction for Transportation Systems Conference, Turin, Jul. 2018
- Tallu, G., Beck, L. M., Prouvier, M., Winkler, A. et al., “3D CFD Modelling and Simulation of Spark Ignition Inclusive of Turbulence Effects and Detailed Chemical Kinetics,” in Proc. 3rd International Conference on Ignition Systems for Gasoline Engines, Nov. 3-4, 2016, Berlin
- Chen, C., Bardsley, M.E.A., and Johns, R.J.R., “Two-Zone Flamelet Combustion Model,” SAE Technical Paper 2000-01-2810, 2000, doi:10.4271/2000-01-2810.
- Tan, Z. and Reitz, R., “Modeling Ignition and Combustion in Spark-Ignition Engines using a Level Set Method,” SAE Technical Paper 2003-01-0722, 2003, doi:10.4271/2003-01-0722.
- Herweg, R. and Maly, R.R., “A Fundamental Model for Flame Kernel Formation in S.I. Engines,” SAE Technical Paper 922243, 1992, doi:10.4271/922243.
- Sher, E., Ben-YaIsh, J., and Kravchik, T., “On the Birth of Spark Channels,” Combustion and Flame 89:168-194, 1992.
- Maly, R. and Vogel, M., “Initiation and Propagation of Flame Front in Lean Ch4-Air Mixture by the Three Modes of the Ignition Spark,” in Proceedings of the 17th Symposium (International) on Combustion, The Combustion Institute, 17, 821-831, 1978.
- Shapiro, E., Ahmed I. and Tiney, N. “Advanced Ignition Modelling for Pre-chamber Combustion in Lean Burn Gas Engines,” in Proc. 4th International Conference on Ignition Systems for Gasoline Engines, Berlin, Dec., 2018
- Hinze, J.O., Turbulence Second Edition (New York: McGraw-Hill, 1975).
- Metghalchi, H. and Keck, J.C., “Burning Velocities of Mixtures of Air with Methanol, Iso-Octane, and Indolene at High Pressure and Temperature,” Combustion and Flame 44:1081-1093, 1982.
- Ewald, J. and Peters, N., “On Unsteady Premixed Turbulent Burning Velocity Prediction in Internal Combustion Engines,” Proceedings of the Combustion Institute 31:3051-3058, 2007.
- Dahms, R., Fansler, T.D., Drake, M.C., Kuo, T.-W. et al., “Modelling Ignition Phenomena in Spray-Guided Spark-Ignited Engines,” Proc. of Comb. Institute 32:2743-2750, 2009.
- Reinecke, M., Hillebrandt, W., Niemeyer, J.C., Klein, R. et al., “A New Model for Deflagration Fronts in Reactive Fluids,” Astron. Astrophys. 347:724-733, 1999.
- Hernández, I., Shapiro, E., Tiney, N., Kotzagianni, M. et al., “Flame-Wall Interaction Modelling for Pre-Chamber Combustion in Lean Burn Gas Engines,” in Proceedings of 34th International CAE Conference and Exhibition, 2018, Vicenza, Italy.
- Przulj, V., Tiney, N., Shapiro, E., Penning, R. et al., “The Time Scale Bounded K-E Turbulence Model and its Assessment for Automotive Applications”, in Proc. 7th Int. Symp. Turbulence, Heat and Mass Transfer, Palermo, Italy, 2012.
- Bolla, M., Shapiro, E., Tiney, N., Kyrtatos, P. et al., “Numerical Study of Turbulence and Fuel-Air Mixing within a Scavenged Pre-Chamber Using RANS and LES,” SAE Technical Paper 2019-01-0198, 2019.
- Schmitt, M., Hu, R., Wright, Y.M., Soltic, P. et al., “Multiple Cycle LES Simulations of a Direct Injection Methane Engine,” Flow, Turbulence and Combustion (95):645-668, 2015.
- Xu, G., Hanauer, C., Wright, Y., and Boulouchos, K., "CFD-Simulation of Ignition and Combustion in Lean Burn Gas Engines", SAE Technical Paper 2016-01-0800, 2016, doi:10.4271/2016-01-0800.
- Lipatnikov, A.N. and Chomiak, J., “Turbulent Flame Speed and Thickness: Phenomenology, Evaluation and Application in Multi-Dimensional Simulations,” Prog. Energy Comb. Science 28:1-74, 2002.
- Bolla, M., Shapiro, E., Tiney, N., Kyrtatos, P. et al., “Numerical Simulation of Pre-Chamber Combustion in an Optically Accessible RCEM,” SAE Technical Paper 2019-01-0224, 2019.