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Scavenge Ports Ooptimization of a 2-Stroke Opposed Piston Diesel Engine
Technical Paper
2017-24-0167
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work reports a CFD study on a 2-stroke (2-S) opposed piston high speed direct injection (HSDI) Diesel engine. The engine main features (bore, stroke, port timings, et cetera) are defined in a previous stage of the project, while the current analysis is focused on the assembly made up of scavenge ports, manifold and cylinder. The first step of the study consists in the construction of a parametric mesh on a simplified geometry. Two geometric parameters and three different operating conditions are considered. A CFD-3D simulation by using a customized version of the KIVA-4 code is performed on a set of 243 different cases, sweeping all the most interesting combinations of geometric parameters and operating conditions. The post-processing of this huge amount of data allow us to define the most effective geometric configuration, named baseline.
In the second step of the study, the baseline is further optimized, keeping into account some fundamental design constraints, such as the overall dimensions of the manifold. The evolved geometry is then simulated by using KIVA, adopting a refined grid and realistic boundary conditions. The paper presents the calculated scavenging patterns, offering a detailed insight of the process.
Finally, the influence of the offset between the crankshafts is analyzed, by using a calibrated CFD-1D engine model.
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Authors
- Enrico Mattarelli - Universita di Modena e Reggio Emilia
- Carlo Rinaldini - Universita di Modena e Reggio Emilia
- Tommaso Savioli - Universita di Modena e Reggio Emilia
- Giuseppe Cantore - Universita di Modena e Reggio Emilia
- Alok Warey - General Motors Global R & D
- Michael Potter - General Motors LLC
- Venkatesh Gopalakrishnan - General Motors LLC
- Sandro Balestrino - General Motors LLC
Topic
Citation
Mattarelli, E., Rinaldini, C., Savioli, T., Cantore, G. et al., "Scavenge Ports Ooptimization of a 2-Stroke Opposed Piston Diesel Engine," SAE Technical Paper 2017-24-0167, 2017, https://doi.org/10.4271/2017-24-0167.Data Sets - Support Documents
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References
- Tribotte , P. , Ravet , F. , Dugue , V. , Obernesser , P. , Quechon , N. , Benajes , J. , Novella , R. , and De Lima , D. Two Strokes Diesel Engine - Promising Solution to Reduce CO2 Emissions Procedia - Social and Behavioral Sciences 48 2295 2314 2012 10.1016/j.sbspro.2012.06.1202
- Heywood , J. B. and Sher , E. Two-Stroke Cycle Engine: Its Development, Operation and Design Taylor and Francis 978-1-560-32831-5 1999
- Herold , R. , Wahl , M. , Regner , G. , Lemke , J. et al. Thermodynamic Benefits of Opposed-Piston Two-Stroke Engines SAE Technical Paper 2011-01-2216 2011 10.4271/2011-01-2216
- Hofbauer , P. Opposed Piston Opposed Cylinder (opoc) Engine for Military Ground Vehicles SAE Technical Paper 2005-01-1548 2005 10.4271/2005-01-1548
- Peng , L. , Tusinean , A. , Hofbauer , P. , and Deylami , K. Development of a Compact and Efficient Truck APU SAE Technical Paper 2005-01-0653 2005 10.4271/2005-01-0653
- Regner , G. , Herold , R. , Wahl , M. , Dion , E. et al. The Achates Power Opposed-Piston Two-Stroke Engine: Performance and Emissions Results in a Medium-Duty Application SAE Int. J. Engines 4 3 2726 2735 2011 10.4271/2011-01-2221
- Regner , G. , Johnson , D. , Koszewnik , J. , Dion , E. et al. Modernizing the Opposed Piston, Two Stroke Engine for Clean, Efficient Transportation SAE Technical Paper 2013-26-0114 2013 10.4271/2013-26-0114
- Redon , F. , Kalebjian , C. , Kessler , J. , Rakovec , N. et al. Meeting Stringent 2025 Emissions and Fuel Efficiency Regulations with an Opposed-Piston, Light-Duty Diesel Engine SAE Technical Paper 2014-01-1187 2014 10.4271/2014-01-1187
- Naik , S. , Redon , F. , Regner , G. , and Koszewnik , J. Opposed-Piston 2-Stroke Multi-Cylinder Engine Dynamometer Demonstration SAE Technical Paper 2015-26-0038 2015 10.4271/2015-26-0038
- Warey , A. , Gopalakrishnan , V. , Potter , M. , Mattarelli , E. et al. An Analytical Assessment of the CO2 Emissions Benefit of Two-Stroke Diesel Engines SAE Technical Paper 2016-01-0659 2016 10.4271/2016-01-0659
- Warey , A. , Gopalakrishnan , V. , Potter , M. et al. Comparison of different scavenging concepts on two-stroke high-speed diesel engines Proceedings of THIESEL2016, Conference on Thermo-and Fluid Dynamic Processes in Direct Injection Engines Valencia (Spain) 9-13th September 2016
- Mattarelli , E. , Rinaldini , C. , and Patroncini , P. Commercial Vehicles: New Diesel Engine Concepts for Euro VI and Beyond SAE Technical Paper 2017-26-0034 2017 10.4271/2017-26-0034
- Fellberg , M. , Huber , J. , and Duerr , J. The Development of Detroit Diesel Allison's New Generation Series 53 Engines SAE Technical Paper 850259 1985 10.4271/850259
- Knoll , R. AVL Two-Stroke Diesel Engine SAE Technical Paper 981038 1998 10.4271/981038
- Hori , H. Scavenging Flow Optimization of Two-Stroke Diesel Engine by Use of CFD SAE Technical Paper 2000-01-0903 2000 10.4271/2000-01-0903
- Nuccio , P. , Marzano , M.R. R&D of a New G.D.I. 2-Stroke Engine with a Unidirectional Scavenging Flow and a Force-Feed Lubrication System SAE Technical Paper 2007-32-0025
- Mattarelli , E. , Rinaldini , C. , and Wilksch , M. 2-Stroke High Speed Diesel Engines for Light Aircraft SAE Int. J. Engines 4 2 2338 2360 2011 10.4271/2011-24-0089
- Rinaldini , C. , Mattarelli , E. , and Golovitchev , V. CFD Analyses on 2-Stroke High Speed Diesel Engines SAE Int. J. Engines 4 2 2240 2256 2011 10.4271/2011-24-0016
- Mattarelli , E. , Rinaldini , C. , and Savioli , T. Port Design Criteria for 2-Stroke Loop Scavenged Engines SAE Technical Paper 2016-01-0610 2016 10.4271/2016-01-0610
- Savioli Tommaso CFD Analysis of 2-Stroke Engines Energy Procedia 81 2015 723 731 1876-6102
- Borghi , M. , Mattarelli , E. , Muscoloni , J. , Rinaldini , C. A. , Savioli , T. , & Zardin , B. 2017 Design and experimental development of a compact and efficient range extender engine Applied Energy 202 507 526