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Potential Analysis and Virtual Development of SI Engines Operated with Synthetic Fuel DMC+
Technical Paper
2020-01-0342
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
On the way to emission-free mobility, future fuels must be CO2 neutral. To achieve this, synthetic fuels are being developed. In order to better assess the effects of the new fuels on the engine process, simulation models are being developed that reproduce the chemical and physical properties of these fuels.
In this paper, the fuel DMC+ is examined. DMC+ (a mixture of dimethyl carbonate (DMC) and methyl formate (MeFo) mainly, characterized by the lack of C-C Bonds and high oxygen content) offers advantages with regard to evaporation heat, demand of oxygen and knock resistance. Furthermore, its combustion is almost particle free. With the aid of modern 0D/1D simulation methods, an assessment of the potential of DMC+ can be made.
It is shown that the simulative conversion of a state-of-the-art gasoline engine to DMC+ fuel offers advantages in terms of efficiency in many operating points even if the engine design is not altered. This is mainly due to the higher knock resistance and the lower temperatures in the intake stroke resulting from the higher amount of evaporated fuel. For a fixed amount of fuel energy, a lower air mass flow rate is needed, making the fuel particularly interesting for down-sizing concepts.
Therefore, the engine design is adapted for the new fuel to take full advantage of the fluid properties. In a first step, the adaptions include the compression ratio, the engine displacement and the turbocharger matching. A considerable efficiency gain in the whole operating range can be demonstrated, making DMC+ a highly promising prospective for future SI engines.
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Wagner, C., Grill, M., Keskin, M., Bargende, M. et al., "Potential Analysis and Virtual Development of SI Engines Operated with Synthetic Fuel DMC+," SAE Technical Paper 2020-01-0342, 2020, https://doi.org/10.4271/2020-01-0342.Data Sets - Support Documents
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References
- European Union 2018
- Härtl , M. , Stadler , A. , Blochum , S. , and Pélerin , D. DMC+ as Particulate Free and Potentially Sustainable Fuel for DI SI Engines Zukünftige Kraftstoffe 2019 10.1007/978-3-662-58006-6
- Grill , M. and Bargende , M. The Cylinder Module MTZ Worldw 70 10 60 66 2009 10.1007/BF03227984
- Grill , M. , Schmid , A. , Chiodi , M. , Berner , H.-J. et al. Calculating the Properties of User-Defined Working Fluids for Real Working-Process Simulations SAE Technical Paper 2007-01-0936 2007 https://doi.org/10.4271/2007-01-0936
- Grill , M. , Billinger , T. , and Bargende , M. Quasi-Dimensional Modeling of Spark Ignition Engine Combustion with Variable Valve Train SAE Technical Paper 2006-01-1107 2006 https://doi.org/10.4271/2006-01-1107
- Grill , M. and Bargende , M. The Development of an Highly Modular Designed Zero-Dimensional Engine Process Calculation Code SAE Int. J. Engines 3 1 1 11 2010 https://doi.org/10.4271/2010-01-0149
- Maier , T. , Härtl , M. , Jacob , E. , and Wachtmeister , G. Dimethyl Carbonate (DMC) and Methyl Formate (MeFo): Emission Characteristics of Novel, Clean and Potentially CO2-Neutral Fuels Including PMP and sub-23 nm Nanoparticle-Emission Characteristics on a Spark-Ignition DI-Engine Fuel 256 115925 2019 10.1016/j.fuel.2019.115925
- Blanquart , G. , Pepiot-Desjardins , P. , and Pitsch , H. Chemical Mechanism for High Temperature Combustion of Engine Relevant Fuels with Emphasis on Soot Precursors Combustion and Flame 156 3 588 607 2009 10.1016/j.combustflame.2008.12.007
- Dooley , S. , Burke , M.P. , Chaos , M. , Stein , Y. et al. Methyl Formate Oxidation: Speciation Data, Laminar Burning Velocities, Ignition Delay Times, and a Validated Chemical Kinetic Model Int. J. Chem. Kinet. 42 9 527 549 2010 10.1002/kin.20512
- Sun , H. , Yang , S.I. , Jomaas , G. , and Law , C.K. High-Pressure Laminar Flame Speeds and Kinetic Modeling of Carbon Monoxide/Hydrogen Combustion Proceedings of the Combustion Institute 31 1 439 446 2007 10.1016/j.proci.2006.07.193
- Cai , L. , Ramalingam , A. , Minwegen , H. , Alexander Heufer , K. et al. Impact of Exhaust Gas Recirculation on Ignition Delay Times of Gasoline Fuel: An Experimental and Modeling Study Proceedings of the Combustion Institute 37 1 639 647 2019 10.1016/j.proci.2018.05.032
- Schmid , A. , Grill , M. , Berner , H. , and Bargende , M. Ein neuer Ansatz zur Vorhersage des ottomotorischen Klopfens 3 IAV Tagung: Ottomotorisches Klopfen Tagungsband, Berlin 2010
- Fandakov , A. , Grill , M. , Bargende , M. , and Kulzer , A.C. Two-Stage Ignition Occurrence in the End Gas and Modeling Its Influence on Engine Knock SAE Int. J. Engines 10 4 2109 2128 2017 https://doi.org/10.4271/2017-24-0001
- Fandakov , A. , Grill , M. , Bargende , M. , and Kulzer , A.C. A Two-Stage Knock Model for the Development of Future SI Engine Concepts SAE Technical Paper 2018-01-0855 2018 https://doi.org/10.4271/2018-01-0855
- Heywood , J.B. Internal Combustion Engine Fundamentals Mechanical Engineering 2018 978-1260116106
- Hann , S. , Grill , M. , and Bargende , M. Reaction Kinetics Calculations and Modeling of the Laminar Flame Speeds of Gasoline Fuels SAE Technical Paper 2018-01-0857 2018 https://doi.org/10.4271/2018-01-0857
- Hann , S. , Urban , L. , Grill , M. , and Bargende , M. Prediction of Burn Rate, Knocking and Cycle-to-Cycle Variations of Binary Compressed Natural Gas Substitutes in Consideration of Reaction Kinetics Influences International Journal of Engine Research 19 1 21 32 2018 10.1177/1468087417732883
- Hann , S. , Grill , M. , and Bargende , M. A Quasi-Dimensional SI Combustion Model Predicting the Effects of Changing Fuel, Air-Fuel-Ratio, EGR and Water Injection SAE Technical Paper 2020-01-0574 2020 https://doi.org/10.4271/2020-01-0574
- Eichler , F. , Demmelbauer-Ebner , W. , Theobald , J. , Stiebels , B. et al. Der neue EA211 TSI®evo von Volkswagen 37 International Vienna Motor Symposium 2016
- Huß , M. 2013
- Grill , M. , Chiodi , M. , Berner , H.-J. , and Bargende , M. Calculating the Thermodynamic Properties of Burnt Gas and Vapor Fuel for User-Defined Fuels MTZ Worldw 68 5 30 35 2007 10.1007/BF03226830
- Grill , M. 2006 10.18419/opus-4076