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An Investigation of the Ignition Delay Character of Different Fuel Components and an Assessment of Various Autoignition Modelling Approaches
Technical Paper
2005-01-2084
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An understanding of the ignition delay behaviour of spark ignition fuels, over a wide range of temperatures and pressures, was an essential prerequisite for an ongoing pursuit to develop a fundamentally-based predictive octane model for gasoline blends. The ignition delay characteristics of certain model fuel compounds such as linear and iso-paraffins, olefins, aromatics and alcohols were investigated by means of chemical kinetic modelling, employing CHEMKIN 3.7 using detailed molecular oxidation mechanisms obtained from the literature. The complexity of these mechanisms necessitated the parallel investigation of reduced kinetic models in some of the applications. Reduced kinetic models were also used to describe the blending behaviour of selected binary combinations of the model fuels.
The complex ignition delay response in the temperature/pressure domain that was predicted by the detailed kinetic analyses was reduced to a simple system of three, coupled Arrhenius equations. This simplified expression was used to emulate experimental data that were obtained for the model fuels in a combustion bomb apparatus, the IQT™, as well as data from a single cylinder CFR engine under knocking conditions. A combination of the various approaches has led to new insights regarding the blending behaviour of various classes of fuel molecules in regard to their collective resistance towards autoignition. This is a critical requirement for understanding and modelling the chemical ignition delay as reflected by octane numbers.
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Authors
- Carl L. Viljoen - Sasol Advanced Fuels Laboratory, University of Cape Town
- Andy D. B. Yates - Sasol Advanced Fuels Laboratory, University of Cape Town
- André Swarts - Sasol Advanced Fuels Laboratory, University of Cape Town
- Gillian Balfour - Department of Chemical Engineering, University of Cape Town
- Klaus Möller - Department of Chemical Engineering, University of Cape Town
Topic
Citation
Viljoen, C., Yates, A., Swarts, A., Balfour, G. et al., "An Investigation of the Ignition Delay Character of Different Fuel Components and an Assessment of Various Autoignition Modelling Approaches," SAE Technical Paper 2005-01-2084, 2005, https://doi.org/10.4271/2005-01-2084.Also In
References
- Warnatz, J. “Hydrocarbon oxidation high-temperature chemistry” Pure Appl. Chem. 72 11 2101 2000
- Halstead, M. P. Kirsch, L. J. Quinn, C. P. “The Autoignition of Hydrocarbon Fuels at High Temperatures and Pressures -Fitting of a Mathematical Model” Combustion and Flame 30 45 60 1977
- Kirsch, L. J. Quinn, C. P. “A fundamentally based model of knock in the gasoline engine.” Sixteenth Symposium (Int.) on Combustion Combustion Institute 233 244 1976
- Cox, R.A. Cole, J.A. “Chemical aspects of the autoignition of hydrocarbon-air mixtures.” Comb and Flame 60 109 123 1985
- Schreiber, M. Sadat Sakak, A. Lingens, A. Griffiths, J.F. “A reduced thermokinetic model for the autoignition of fuels with variable octane ratings.” 25th Symposium (International) on Combustion Combustion Institute Pittsburgh, USA 933 940 1994
- Westbrook, C.K. Warnatz, J. Pitz, W.J. “A detailed chemical kinetic reaction mechanism for the oxidation of iso-octane and n-heptane over an extended temperature range and its application to analysis of engine knock.” Twenty-second Symposium (Int.) on Combustion Combustion Institute 893 901 1988
- Logan, S.R. “Fundamentals of Chemical Kinetics” Longman 10 1996
- Fish, A. Read, A. Affleck. W.S. Haskell, W.W “The controlling role of cool flames in two-stage ignition.” Combustion and Flame 13 39 49 1969
- Livengood, J. C. Wu, P. C. “Correlation Of Autoignition Phenomena In Internal Combustion Engines And Rapid Compression Machines” 5th Symp. (Int.) on Combustion 347 Reinhold Publishing Corp. 1955
- Douaud, A. M. Eyzat P. “Four Octane Number Method for Predicting the Anti-Knock Behaviour of Fuels and Engines” SAE 780080 1978
- Lewis B. von Elbe G. “Combustion, Flames and Explosions of Gases” 2nd Academic Press 1961
- Edwards, C.F. Siebers, D.L. Hoskin, D.H. “A Study of the Autoignition Process of a Diesel Spray via High Speed Visualization” SAE 920108 1992
- Tao, F. Chomiak, J. “Numerical Investigation of Reaction Zone Structure and Flame Liftoff of DI Diesel Sprays with Complex Chemistry” SAE 2002-01-1114 2002
- Curran, H.J. Gaffuri, P. Pitz, W.J. Westbrook, C.K. “A Comprehensive Modeling Study of n-Heptane Oxidation” Combust. Flame 114 149 177 1998
- Curran, H.J. Gaffuri, P. Pitz, W.J. Westbrook, C.K. “A Comprehensive Modeling Study of iso-Octane Oxidation” Combust. Flame 129 253 280 2002
- Ciezki, H.K. Adomeit, G. “Shock-tube investigation of self-ignition of n-heptane-air mixtures under engine relevant conditions.” Combustion and Flame 93 421 433 1993
- Tao, F. Golovitchev V. I. Chomiak J. “Self-Ignition and Early combustion Process of n-Heptane Sprays Under Diluted Air Conditions: Numerical Studies Based on Detailed Chemistry” SAE 2000-01-2931 2000
- Westbrook, C.K. Curran, H.J. Pitz, W.J. Griffiths, J.F. Mohamed, C. Wo, S.K. “The Effects of Pressure, Temperature, and Concentration on the Reactivity of Alkanes: Experiments and Modeling in a Rapid Compression Machine” Twenty-seventh Symposium (Int.) on Combustion Combustion Institute 371 378 1998
- Warth, V. Stef, N. Glaude, P. A. Battin-Leclerc, F. Scacchi, G. Come, G. M. “Computer-Aided Derivation of Gas-Phase Oxidation Mechanisms: Application to the Modelling of the Oxidation of normal-butane” Combustion and Flame 114 81 102 1998
- Touchard, S. Fournet, R. Glaude, P.A. Warth, V. Battin-Leclerc, F. Vanhove, G. Ribaucour, M. Minetti, R. “Modelling of the oxidation of large alkenes at low temperature” Proceedings of the Combustion Institute 1073 1081 2004
- Djurisic, Zoran M. “Detailed kinetic modeling of benzene and toluene oxidation at high temperatures” University of Delaware 1999
- Marinov, N.M. “A Detailed Chemical Kinetic Model for High Temperature Ethanol Oxidation” Int J. Chem Kinet. 31 183 220 1999
- Westbrook, C.K. Curran, H.J. Pitz, W.J. Griffiths, J.F. Mohamed, C. “Kinetic Modeling of Hydrocarbon Autoignition at Low and Intermediate Temperatures in a Rapid Compression Machine” Proceedings of 3rd Workshop on Modeling of Chemical Reaction Systems University of Heidelberg 1996
- Kee, R. J. Rupley, F. M. Miller, J. A. “CHEMKIN-II: A Fortran Chemical Kinetics Package for the Analysis of Gas Phase Chemical Kinetics” Sandia National Laboratories 1989
- Simmie, J.M. “Detailed chemical kinetic models for the combustion of hydrocarbon fuels” Progress in Energy and Combustion Science 2003 29 6 599 634
- Yates, A.D.B. Viljoen, C.L. Swarts, A. “Understanding the Relation between Cetane Number and Combustion Bomb Ignition Delay Measurements.” SAE 2004-01-2017
- Yates, A.D.B Swarts, A Viljoen, C.L. “Correlating Auto-Ignition Delays And Knock-Limited Spark-Advance Data For Different Types Of Fuel” SAE Paper Number 2005-01-2083
- Ogink, R. Golovitchev, V.I. “Reaction Mechanisms For Natural Gas and Gasoline in Homogeneous Charge Compression Ignition (HCCI) Engine Modelling” ICE 2003, 6 th Int. Conf. on Engines for Automobile SAE_NA 2003-01-42 Capri, Italy 2003
- Bollentin, Joseph W. Wilk, Richard D. “Autoignition characteristics of ethanol” SAE 961175 1996
- Marinov, Nick M. Pitz, William J. Westbrook, Charles K. Vincitore, Antonio M. Castaldi, Marco J. Senkan, Selim M. Melius, Carl F. “Aromatic and polycyclic aromatic hydrocarbon formation in a laminar premixed n-butane flame” Combustion and Flame 114 192 213 1998
- Swarts, A. Yates, A.D.B Viljoen, C.L. Coetzer, R. “A Further Study of Knock Intensity in the CFR Octane Rating Engine and the Relation to Autoignition” SAE Paper Number 2005-01-2081
- Westbrook, Charles K. “Chemical kinetics of hydrocarbon ignition in practical combustion systems.” Proceedings of the Combustion Institute 1563 1577 2000
- Griffiths, J.F. “The fundamentals of spontaneous ignition of gaseous hydrocarbons and related organic compounds.” Adv. Chem. Phys. 64 203 303 1986
- Griffiths, J.F. “Kinetic fundamentals of alkane autoignition at low temperatures.” Combustion and Flame 93 202 206 1993
- Griffiths, J.F. “Reduced kinetic models and their application to practical combustion systems.” Prog. Energy Combust. Sci. 21 25 107 1995
- Wang, X.-J. Mou, C.Y. “A thermokinetic model of complex oscillations in gaseous hydrocarbons oxidation.” J. Chem. Phys. 83 9 4554 1985
- Warnatz, J. “Experimental and computational study of ignition and flame propagation in internal combustion engines.” Endeavour 20 1 31 36 1996
- Griffiths, J.F Jiao, Q. Schreiber, M. Meyer, J. Knoche, K.F. “Development of thermokinetic models for autoignition in a CFD code: experimental validation and application of the results to rapid compression studies.” Twenty-fourth Symposium (International) on Combustion Combustion Institute Pittsburgh, USA 1809 1815 1992
- Leppard, W. R. “The Chemical Origin of Fuel Octane Sensitivity” SAE 902137 1990
- Otobe, Y. Ogawa, T. Kawamoto, M. Mori, J. “Formula 1 Turbocharged V-6 1.5L Engine” Technical Papers included in “A Decade of Continuous Challenges - A Record of Honda's Formula One Racing Activities” Public Relations Division Honda Motor Co. 1994
- Tanaka, S Ayala Keck, F.J.C. Heywood, J.B. “Two-stage ignition in HCCI combustion and HCCI control by fuels and additives.” Combustion and Flame 132 2003 219 239
- Roubaud, A. Minetti, R. Sochet, L.R. “Oxidation and Combustion of Low Alkylbenzenes at High Pressure: Comparative Reactivity and Auto-Ignition” Combustion and Flame 121 535 541 2000
- Pitz, W.J. Westbrook, C.K. Leppard, W.R. “Autoignition Chemistry of n-Butane in a Motored Engine: A Comparison of Experimental and Modeling Results” SAE 881606 1988
- Leppard, W.R. “The Autoignition Chemistry of n-Butane: An Experimental Study” SAE 872150 1987