This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling the Pilot Injection and the Ignition Process of a Dual Fuel Injector with Experimental Data from a Combustion Chamber Using Detailed Reaction Kinetics
Technical Paper
2018-01-1724
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The introduction of the so called Emission Controlled Areas within the IMO Tier III legislation forces manufacturers of maritime propulsion systems to adherence to stringent emission thresholds. Dual fuel combustion, which is characterized by the injection of a small amount of fuel oil to ignite a premixed natural gas air mixture, constitutes an option to meet this target. At high diesel substitution rates and very short pilot injection events, the injector is operated in the ballistic regime. This influences spray penetration, mixture formation and ignition behavior. In the present work, a seven-hole dual fuel injector was measured in a combustion chamber to provide data for the generation of a CFD model using the commercial code AVL FIRE®. The liquid and the vapor phase of the fuel spray were quantified by Mie-scattering and Schlieren-imaging technique for different chamber conditions. Based on the measured spray characteristics, a methodology was developed to imprint a velocity profile to the initial droplets in the CFD model, to depict the spray penetration for small injection durations. To characterize the ignition process and the flame propagation, measurements of the OH* emission and the natural luminosity of the flame were carried out. A detailed reaction mechanism, which is able to predict both diesel and dual fuel combustion, was integrated in the CFD model. The ignition delay was fitted to the experimental data by adapting the reaction mechanism for different chamber temperatures. The influence of the presence of natural gas on the ignition behavior was validated using data from a rapid compression machine. Even for low temperatures and high pressures, similar to the start of injection under engine operating conditions, a good correlation could be achieved. The developed knowledge will be transferred to an engine model to investigate the limits of dual fuel combustion processes.
Authors
- Jens Frühhaber - Technische Universität Wien
- Andreas Peter - University of Erlangen-Nuremberg
- Sebastian Schuh - Technische Universität Wien
- Thomas Lauer - Technische Universität Wien
- Michael Wensing - University of Erlangen-Nuremberg
- Franz Winter - Technische Universität Wien
- Peter Priesching - AVL
- Klaus Pachler - AVL
Topic
Citation
Frühhaber, J., Peter, A., Schuh, S., Lauer, T. et al., "Modeling the Pilot Injection and the Ignition Process of a Dual Fuel Injector with Experimental Data from a Combustion Chamber Using Detailed Reaction Kinetics," SAE Technical Paper 2018-01-1724, 2018, https://doi.org/10.4271/2018-01-1724.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 |
Also In
References
- International Maritime Organization MARPOL 2008
- International Maritime Organization 2008
- Schlemmer-Kelling , U. , Bergmann , D. , and Heuser , P. MTZ Industrial 2017
- Senghaas , C. , Willmann , M. , and Koch , H. Simplified L’Orange Fuel Injection System for Dual Fuel Applications CIMAC Congress Helsinki 2016 Helsinki, Finland June 6-10 2016
- Baufeld , T. , Mohr , H. , and Philipp , H. Future Perspectives and Technical Challenges for Large-Bore Dual-Fuel Engines 8. Dessauer Gasmotoren-Konferenz Dessau, Germany Mar. 21-22 2013
- Karim , G.A. Duel-Fuel Diesel Engines Boca Raton CRC Press 2015
- Kiesling , C. , Redtenbacher , C. , Kirsten , M. , and Wimmer , A. Detailed Assessment of an Advanced Wide Range Diesel Injector for Dual Fuel Operation of Large Engines CIMAC Congress Helsinki 2016 Helsinki, Finland June 6-10 2016
- Li , Y. , Song , E. , and Yang , L. Research on the Influence of Diesel Injection Law to Combustion Process of Micro Ignition Dual Fuel Engine CIMAC Congress Helsinki 2016 Helsinki, Finland June 6-10 2016
- Malin , M. , Kiesling , C. , Redtenbacher , C. , and Wimmer , A. Einfluss der Diesel-Piloteinspritzung auf die Verbrennung in Diesel-Gas Dual Fuel Motoren 10. Tagung Diesel- und Benzindirekteinspritzung 2016 Berlin, Germany 2016
- Liu , Z. and Karim , G.A. Simulation of Combustion Processes in Gas-Fueled Diesel Engines Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 211 2 159 169 1997
- Eder , L. , Priesching , P. , and Wimmer , A. 3D-CFD Simulation of Dual Fuel Combustion in a Diesel Ignited Gas Engine International Multidimensional Engine Modeling User’s Group Meeting Detroit, MI Apr. 3 2017
- Daisho , Y. , Yaeo , T. , Koseki , T. , Saito , T. et al. Combustion and Exhaust Emissions in a Direct-Injection Diesel Dual-Fueled with Natural Gas SAE Technical Paper 950465 1995 10.4271/950465
- Fink , C. , Henke , B. , Schleef , K. , Andree , S. et al. Experimentelle und numerische Untersuchung des Dual-Fuel Verbrennungsprozesses in mittelschnelllaufenden Motoren 4. Rostocker Großmotorentagung Rostock, Germany 2016
- Ritzke , J. , Andree , S. , Theile , M. , Henke , B. et al. Simulation of a Duel-Fuel Large Marine Engines Using Combined 0/1-D and 3-D Approaches CIMAC Congress Helsinki 2016 Helsinki, Finland June 6-10 2016
- Riess , S. , Weiss , L. , Peter , A. , Rezaei , J. et al. Air Entrainment and Mixture Distribution in Diesel Sprays Investigated by Optical Measurement Techniques International Journal of Engine Research 19 1 120 133 2017 10.1177/1468087417742527
- Peter , A. , Riess , S. , Wensing , M. , Fruehhaber , J. et al. Investigation of Mixture Formation and Flammability of Natural Gas and Diesel under Dual Fuel Operating Conditions in the Limits of Flame-Quenching and Knocking The Ninth International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2017) Okayama, Japan July 25-28 2017
- Riess , S. , Vogel , T. , and Wensing , M. Influence of Exhaust Gas Recirculation on Ignition and Combustion of Diesel Fuel under Engine Conditions Investigated by Chemical Luminescence 13th Triennial Conference on Liquid Atomization and Spray Systems (ICLASS 2015) Tainan, Taiwan Aug. 23-27 2015
- Schlatter , S. , Schneider , B. , Wright , Y. , and Boulouchos , K. 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 10.4271/2012-01-0825
- Stiesch , G. Modeling Engine Spray and Combustion Processes Heidelberg Springer-Verlag Berlin 2003 10.1007/978-3-662-08790-9
- Dukowicz , J. Quasi-Steady Droplet Phase Change in the Presence of Convection Los Alamos Scientific Laboratory 1979
- Liu , A.B. , Mather , D. , and Reitz , R.D. Modeling the Effects of Drop Drag and Breakup on Fuel Sprays SAE Technical Paper 930072 1993 10.4271/930072
- Naber , J.D. and Siebers , D.L. Effects of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays SAE Technical Paper 960034 1996 10.4271/960034
- Desantes , J.M. , Payri , R. , Salvador , F.J. , and Gil , A. Development and Validation of a Theoretical Model for Diesel Spray Penetration Fuel 85 910 917 2006
- Sazhin , S.S. , Feng , G. , and Heikal , M.R. A Model for Fuel Spray Penetration Fuel 80 2171 2180 2001
- Heywood , J.B. Internal Combustion Engines Fundamentals McGraw-Hill 1988
- AVL 2017
- UC San Diego The San Diego Mechanism-Chemical-Kinetic Mechanisms for Combustion Applications http://web.eng.ucsd.edu/mae/groups/combustion/mechanism.html
- Pachler , R.F. , Ramalingam , A.K. , Heufer , K.A. , and Winter , F. Reduction and Validation of a Chemical Kinetic Mechanism Including Necessity Analysis and Investigation of CH 4 /C 3 H 8 Oxidation at Pressures up to 120 Bar Using a Rapid Compression Machine Fuel 172 139 145 2015
- Herzler , J. , Fikri , M. , Welz , O. , and Schulz , C. High-Pressure Shock-Tube Study of the Ignition of Fuel-Rich CH 4 /Air and CH 4 /Additive/Air Mixtures over a Wide Temperature Range 7th European Combustion Meeting 2015 (ECM 2015) Budapest, Hungary Mar. 30-Apr. 2 2015
- Schuh , S. and Winter , F. Comparing the Influence of Propane and n-Heptane Addition on Methane Ignition at High Pressure 8th European Combustion Meeting 2017 (ECM 2017) Dubrovnik, Croatia Apr. 18-21 2017
- AVL 2017
- AVL 2017
- Minetti , R. , Carlier , M. , Ribaucour , M. , Therssen , E. et al. A Rapid Compression Machine Investigation of Oxidation and Auto-Ignition of n-Heptane: Measurements and Modeling Combustion and Flame 102 298 309 1995