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Integration of a Cool-Flame Heat Release Rate Model into a 3-Stage Ignition Model for HCCI Applications and Different Fuels
Technical Paper
2014-01-1268
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The heat release of the low temperature reactions (LTR or cool-flame) under Homogeneous Charge Compression Ignition (HCCI) combustion has been quantified for five candidate fuels in an optically accessible Rapid Compression Expansion Machine (RCEM). Two technical fuels (Naphthas) and three primary reference fuels (PRF), (n-heptane, PRF25 and PRF50) were examined. The Cetane Numbers (CN) of the fuels range from 35 to 56. Variation of the operating parameters has been performed, in regard to initial charge temperature of 383, 408, and 433K, exhaust gas recirculation (EGR) rate of 0%, 25%, and 50%, and equivalence ratio of 0.29, 0.38, 0.4, 0.53, 0.57, and 0.8. Pressure indication measurements, OH-chemiluminescence imaging, and passive spectroscopy were simultaneously implemented.
In our previous work, an empirical, three-stage, Arrhenius-type ignition delay model, parameterized on shock tube data, was found to be applicable also in a transient, engine-relevant environment. The pressure rise due to cool-flame heat release, which is crucial for the induction of main ignition, was included in the experimental pressure traces that have been used. To fully predict the ignition delay in HCCI-engine applications however, the cool-flame heat release characteristics need to be known in advance.
In this work, the cool-flame heat release characteristics have been investigated with regard to operating parameters. A simplified, cool-flame heat release model is proposed, that is mathematically independent from the three-stage ignition delay model. It provides the cool-flame heat release profile that is used to reconstruct a pressure/temperature trace including the effect of the cool-flame. The reconstructed trace is the input to the three-stage model, and thus both cool and hot-flame ignition delays can be predicted. The overall performance of the combined three-stage/cool-flame heat release model was assessed. Very good agreement was observed between the experimental ignition delay and the combined cool-flame/three-stage ignition model computations.
Authors
- Dimitrios Angelos Mitakos - Swiss Federal Institute of Technology
- Christopher Blomberg - Swiss Federal Institute of Technology
- Yuri M. Wright - Swiss Federal Institute of Technology
- Peter Obrecht - Swiss Federal Institute of Technology
- Bruno Schneider - Swiss Federal Institute of Technology
- Konstantinos Boulouchos - Swiss Federal Institute of Technology
Citation
Mitakos, D., Blomberg, C., Wright, Y., Obrecht, P. et al., "Integration of a Cool-Flame Heat Release Rate Model into a 3-Stage Ignition Model for HCCI Applications and Different Fuels," SAE Technical Paper 2014-01-1268, 2014, https://doi.org/10.4271/2014-01-1268.Also In
References
- Onishi , S. , Jo , S. , Shoda , K. , Jo , P. et al. Active Thermo-Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engines SAE Technical Paper 790501 1979 10.4271/790501
- Najt , P. and Foster , D. Compression-Ignited Homogeneous Charge Combustion SAE Technical Paper 830264 1983 10.4271/830264
- Hultqvist , A. , Christensen , M. , Johansson , B. , Richter , M. et al. The HCCI Combustion Process in a Single Cycle - Speed Fuel Tracer LIF and Chemiluminescence Imaging SAE Technical Paper 2002-01-0424 2002 10.4271/2002-01-0424
- Yao , M. , Zheng , Z. , and Liu , H. Progress and recent trends in homogeneous charge compression ignition (HCCI) engines Progress in Energy and Combustion Science 2009 35 5 398 437 10.1016/j.pecs.2009.05.001
- Tanaka , S. , Ayala , F. , and Keck , J.C. A reduced chemical kinetic model for HCCI combustion of primary reference fuels in a rapid compression machine Combustion and Flame 2003 133 4 467 481 10.1016/s0010-2180(03)00057-9
- Curran , H.J. , Gaffuri , P. , Pitz , W.J. , and Westbrook , C.K. A Comprehensive Modeling Study of n-Heptane Oxidation Combustion and Flame 1998 114 1-2 149 177 10.1016/s0010-2180(97)00282-4
- Tsurushima , T. A new skeletal PRF kinetic model for HCCI combustion Proceedings of the Combustion Institute 2009 32 2 2835 2841 10.1016/j.proci.2008.06.018
- Seiser , R. , Pitsch , H. , Seshadri , K. , Pitz , W.J. , and Gurran , H.J. Extinction and autoignition of n-heptane in counterflow configuration Proceedings of the Combustion Institute 2000 28 2 2029 2037 10.1016/s0082-0784(00)80610-4
- Ra , Y. and Reitz , R.D. A combustion model for IC engine combustion simulations with multi-component fuels Combustion and Flame 2011 158 1 69 90 10.1016/j.combustflame.2010.07.019
- Ra , Y. and Reitz , R.D. A reduced chemical kinetic model for IC engine combustion simulations with primary reference fuels Combustion and Flame 2008 155 4 713 738 10.1016/j.combustflame.2008.05.002
- Mehl , M. , Pitz , W.J. , Westbrook , C.K. , and Curran , H.J. Kinetic modeling of gasoline surrogate components and mixtures under engine conditions Proceedings of the Combustion Institute 2011 33 1 193 200 10.1016/j.proci.2010.05.027
- Liu , S. , Hewson , J.C. , Chen , J.H. , and Pitsch , H. Effects of strain rate on high-pressure nonpremixed n-heptane autoignition in counterflow Combustion and Flame 2004 137 3 320 339 10.1016/j.combustflame.2004.01.011
- Shahbakhti , M. , Lupul , R. , and Koch , C. Predicting HCCI Auto-Ignition Timing by Extending a Modified Knock-Integral Method SAE Technical Paper 2007-01-0222 2007 10.4271/2007-01-0222
- Rausen , D.J. , Stefanopoulou , A.G. , Kang , J.M. , Eng , J.A. , and Kuo , T.W. A mean-value model for control of homogeneous charge compression ignition (HCCI) engines American Control Conference 2004
- He , X. , Zigler , B.T. , Walton , S.M. , Wooldridge , M.S. , and Atreya , A. A rapid compression facility study of OH time histories during iso-octane ignition Combustion and Flame 2006 145 3 552 570 10.1016/j.combustflame.2005.12.014
- Goldsborough , S.S. A chemical kinetically based ignition delay correlation for iso-octane covering a wide range of conditions including the NTC region Combustion and Flame 2009 156 6 1248 1262 10.1016/j.combustflame.2009.01.018
- Hernández , J.J. , Sanz-Argent , J. , Carot , J.M. , and Jabaloyes , J.M. Ignition delay time correlations for a diesel fuel with application to engine combustion modelling International Journal of Engine Research 2010 11 3 199 206 10.1243/14680874jer06209
- Syed , I. , Mukherjee , A. , and Naber , J. Numerical Simulation of Autoignition of Gasoline-Ethanol/Air Mixtures under Different Conditions of Pressure, Temperature, Dilution, and Equivalence Ratio SAE Technical Paper 2011-01-0341 2011 10.4271/2011-01-0341
- Yates , A. , Swarts , A. , and Viljoen , C. Correlating Auto-Ignition Delays And Knock-Limited Spark-Advance Data For Different Types Of Fuel SAE Technical Paper 2005-01-2083 2005 10.4271/2005-01-2083
- Yates , A. and Viljoen , C. An Improved Empirical Model for Describing Auto-ignition SAE Technical Paper 2008-01-1629 2008 10.4271/2008-01-1629
- Weisser , G.A. Modelling of Combustion and Nitric Oxide Formation for Medium-Speed DI Diesel Engines: A Comparative Evaluation of Zero- and Three-Dimensional Approaches Ph.D. Thesis 14465 Department of Mechanical and Process Engineering, ETH Zürich Zürich 2001 10.3929/ethz-a-004317089
- Goldsborough , S. , Smith , T. , Johnson , M. , and McConnell , S. Evaluation of Ignition Timing Predictions Using Control-Oriented Models in Kinetically-Modulated Combustion Regimes SAE Technical Paper 2012-01-1136 2012 10.4271/2012-01-1136
- Weisser , G. , Tanner , F. , and Boulouchos , K. Modeling of Ignition and Early Flame Development with Respect to Large Diesel Engine Simulation SAE Technical Paper 981451 1998 10.4271/981451
- Livengood , J.C. and Wu , P.C. Correlation of autoignition phenomena in internal combustion engines and rapid compression machines Symposium (International) on Combustion 1955 5 1 347 356 10.1016/S0082-0784(55)80047-1
- Mitakos , D. , Blomberg , C. , Vandersickel , A. , Wright , Y. et al. Ignition Delays of Different Homogeneous Fuel-air Mixtures in a Rapid Compression Expansion Machine and Comparison with a 3-Stage-ignition Model Parameterized on Shock Tube Data SAE Int. J. Engines 6 4 1934 1952 2013 10.4271/2013-01-2625
- Vandersickel , A. Two Approaches to Auto-ignition Modelling for HCCI Applications Ph.D. Thesis 19965 Department of Mechanical and Process Engineering, ETH Zürich Zürich 2011 10.3929/ethz-a-006776450
- Vandersickel , A. , Hartmann , M. , Vogel , K. , Wright , Y.M. , Fikri , M. , Starke , R. , Schulz , C. , and Boulouchos , K. The autoignition of practical fuels at HCCI conditions: High-pressure shock tube experiments and phenomenological modeling Fuel 2012 93 0 492 501 10.1016/j.fuel.2011.10.062
- Mitakos , D. and Schneider , B. Kraftstoffkenzahlen - TP3 Einhubtriebwerk: Untersuchung des Homogenen-Zündverhalten im Einhubtriebwerk 2012 Abschlussbericht 953
- 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
- Hartmann , M. , Vandersickel , A. , Mitakos , D. , Beck , S. , Rajamani , V. , Schulz , C. , Boulouchos , K. , B. , and M. , P. , S. Kraftstoffkennzahlen für homogene Verbrennung 2011 Proceedings of the ‘FVV informationstagung motoren’ Frühjahrstagung
- Merker , G.P. , Schwarz , C. , Stiesch , G. , and Otto , F. Verbrennungsmotoren.: Simulation der Verbrennung und Schadstoffbildung Teubner B.G. GmbH 2004
- Allen , C. , Toulson , E. , Edwards , T. , and Lee , T. Application of a novel charge preparation approach to testing the autoignition characteristics of JP-8 and camelina hydroprocessed renewable jet fuel in a rapid compression machine Combustion and Flame 2012 159 9 2780 2788 10.1016/j.combustflame.2012.03.019
- Obrecht , P. WEG - Wärmeentwicklungsgesetz, Rechenprogramm zur thermodynamischen Analyse aus Brennraumdruckverläufe Computer Software ETH Zürich / LAV Zürich 2007
- Yates , A. , Viljoen , C. , and Metcalf , O. An Accurate Determination of the Cetane Number Value of GTL Diesel SAE Technical Paper 2007-01-0026 2007 10.4271/2007-01-0026
- Viljoen , C. , Yates , A. , and Coetzer , R. A Molecular Modelling Investigation of Selected Gasoline Molecules to Relate Oxidation Pathways to their Autoignition Behaviour SAE Technical Paper 2007-01-0005 2007 10.4271/2007-01-0005
- Sohm , V. , Kong , S. , Foster , D. , Morikawa , T. et al. A Computational Investigation into the Cool Flame Region in HCCI Combustion SAE Technical Paper 2004-01-0552 2004 10.4271/2004-01-0552
- Vuilleumier , D. , Selim , H. , Dibble , R. , and Sarathy , M. Exploration of Heat Release in a Homogeneous Charge Compression Ignition Engine with Primary Reference Fuels SAE Technical Paper 2013-01-2622 2013 10.4271/2013-01-2622
- Xiong , Q. , Inaba , K. , Obe , T. , Ogawa , H. et al. Improvements in Thermal Efficiency of Premixed Diesel Combustion with Low Distillation Temperature Fuels SAE Technical Paper 2013-01-2624 2013 10.4271/2013-01-2624