An experimental and numerical analysis of the HCCI auto-ignition process of primary reference fuels, toluene reference fuels and diesel fuel in an engine, varying the engine parameters
Machrafi, Hatim; Cavadias, Simeon; Gilbert, Philippe
2008 • In Fuel Processing Technology, 89 (11), p. 1007-1016
[en] For a future HCCI engine to operate under conditions that adhere to environmental restrictions, reducing fuel consumption and maintaining or increasing at the same time the engine efficiency, the choice of the fuel is crucial. For this purpose, this paper presents an auto-ignition investigation concerning the primary reference fuels, toluene reference fuels and diesel fuel, in order to study the effect of linear alkanes, branched alkanes and aromatics on the auto-ignition. The auto-ignition of these fuels has been studied at inlet temperatures from 25 to 120 degrees C, at equivalence ratios from 0.18 to 0.53 and at compression ratios from 6 to 13.5, in order to extend the range of investigation and to assess the usability of these parameters to control the auto-ignition. It appeared that both iso-octane and toluene delayed the ignition with respect to n-heptane, while toluene has the Strongest effect. This means that aromatics have higher inhibiting effects than branched alkanes. In an increasing order, the inlet temperature, equivalence ratio and compression ratio had a promoting effect on the ignition delays. A previously experimentally validated reduced surrogate mechanism, for mixtures of n-heptane, iso-octane and toluene, has been used to explain observations of the auto-ignition process. (C) 2008 Elsevier B.V. All rights reserved.
An experimental and numerical analysis of the HCCI auto-ignition process of primary reference fuels, toluene reference fuels and diesel fuel in an engine, varying the engine parameters
Soyhan H.S., Mauss F., and Sorusbay C. Chemical kinetic modeling of combustion in internal combustion engines using reduced chemistry. Combust. Sci. Technol. 174 (2002) 73-91
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. Combust. Flame 133 (2003) 467-481
Tanaka S., Ayala F., Keck J.C., and Heywood J.B. Two-stage ignition in HCCI combustion and HCCI control by fuels and additives. Combust. Flame 132 (2003) 219-239
Bikas G., and Peters N. Brief communication: kinetic modelling of n-decane combustion and autoignition. Combust. Flame 126 (2001) 1456-1475
Faravelli T., Gaffuri P., Ranzi E., and Griffiths J.F. Detailed thermokinetic modelling of alkane autoignition as a tool for the optimization of performance of internal combustion engines. Fuel 77 (1998) 147-155
Ogink R., and Golovitchev V. Generalised Skeletal Reaction Mechanism For Aliphatic Hydrocarbons (From Methane To Iso-octane) For CFD Engine Modelling, First Biennial Meeting of The Scandinavian-Nordic Section of the Combustion Institute, Sweden (2001) 151-156
Gauthier B.M., Davidson D.F., and Hanson R.K. Shock tube determination of ignition delay times in full-blend and surrogate fuel mixtures. Combust. Flame 139 (2004) 300-311
Roubaud A., Minetti R., and Sochet L.R. Oxidation and combustion of low alkylbenzenes at high pressure: comparative reactivity and auto-ignition. Combust. Flame 121 (2000) 535-541
Dagaut P., Pengloan G., and Ristori A. Oxidation, ignition and combustion of toluene: experimental and detailed chemical kinetic modeling. Phys. Chem. Chem. Phys. 4 (2002) 1846-1854
Kang S.H., Baek S.W., and Choi J.H. Autoignition of sprays in a cylindrical combustor. Int. J. Heat Mass Transfer 44 (2001) 2413-2422
Kumar M.S., Ramesh A., and Nagalingam B. Use of hydrogen to enhance the performance of a vegetable oil fuelled compression ignition engine. Int. J. Hydrogen Energy 28 (2002) 1143-1154
Sung C.J., Huang Y., and Eng J.A. Effects of reformer gas addition on the laminar flame speeds and flammability limits of n-butane and iso-butane flames. Combust. Flame 126 (2001) 1699-1713
Kong D., Eckhoff R.K., and Alfert F. Auto-ignition of CH4/air, C3H8/air, CH4/C3H8/air and CH4/CO2/air using a 1 l ignition bomb. J. Hazard. Mater. 40 (1995) 69-84
Chen R., and Milovanovic N. A computational study into effect of exhaust gas recycling on homogeneous charge compression ignition combustion in internal combustion engines fuelled with methane. Int. J. Therm. Sci. 41 (2002) 805-813
Furutani M., Kono M., Kojima M., Nose M., and Ohta Y. Chemical Species Histories Up to Ignition in Premixed-Compression-Ignition Natural-gas Engine, The fifth International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engines, Comodia (2001) 461-466
Embouazza M., Gicquel O., and Darabiha N. Modelling Autoignition of HCCI Engine by Reduced Tabulated Chemistry, Mediter. Comb.Symp. Marrakech, Morocco (2003)
Curran H.J., Pitz W.J., Westbrook C.K., Gaffuri P., and Leppard W.R. Autoignition chemistry in a motored engine: an experimental and kinetic modeling study. Int. Symp. Combust. 26 (1996) 2669-2677
Minetti R., Carlier M., Ribaucour M., Therssen E., and Sochet L.R. Comparison of oxidation and autoignition of the two primary reference fuels by rapid compression. Int. Symp. Combust. 26 (1996) 747-753
Curran H.J., Gaffuri P., Pitz W.J., and Westbrook C.K. A comprehensive modeling study of n-heptane oxidation. Combust. Flame 114 (1998) 149-177
Glassman I. Combustion. 3rd ed. (1996), Academic Press, California
H. Machrafi, Development and experimental validation of kinetic schemes for hydrocarbon mixtures for HCCI applications. Investigation of the auto-ignition process and the application to internal combustion engines, PhD thesis, University of Paris 6 (UPMC), Paris, 2007.
Dagaut P., Reuillon M., and Cathonnet M. High pressure oxidation of liquid fuels from low to high temperatures. 2. Mixtures of n-heptane and iso-octane. Combust. Sci. Technol. 95 (1994) 233-260
Papagiannakis R.G., and Hountalas D.T. Experimental investigation concerning the effect of natural gas percentage on performance and emissions of a DI dual fuel diesel engine. Appl. Therm. Eng. 23 (2003) 353-365
D.L. Mitchell, J.A. Pinson, T.A. Litzinger, The effects of simulated EGR via intake air dilution on combustion in an optically accessible DI diesel engine, SAE International, Fuels & Lubricants Meeting & Exhibition (1993) SAE-932798.
J. Li, J.O. Chae, S.B. Park, H.J. Paik, J.K. Park, Y.S. Jeong et al., Effect of intake composition on combustion and emission characteristics of DI diesel engine at high intake pressure, SAE International, International Congress & Exposition (1997) SAE-970322.
N. Ladommatos, S.M. Abdelhalim, H. Zhao, Z. Hu, The dilution, chemical, and thermal effects of exhaust gas recirculation on diesel engine emissions - Part 1: effect of reducing inlet charge oxygen, SAE International, International Spring Fuels and Lubricants Meeting (1996) SAE-961165.
N. Ladommatos, S.M. Abdelhalim, H. Zhao, Z. Hu, The dilution, chemical, and thermal effects of exhaust gas recirculation on diesel engine emissions - Part 2: effects of carbon dioxide, SAE International, International Spring Fuels and Lubricants Meeting (1996) SAE-961167.
N. Ladommatos, S.M. Abdelhalim, H. Zhao, Z. Hu, The dilution, chemical, and thermal effects of exhaust gas recirculation on diesel engine emissions - Part 3: effects of water vapour, SAE International, International Spring Fuels and Lubricants Meeting (1997) SAE-971659.
N. Ladommatos, S.M. Abdelhalim, H. Zhao, Z. Hu, The dilution, chemical, and thermal effects of exhaust gas recirculation on diesel engine emissions - Part 4: effects of carbon dioxide and water vapour, SAE International, International Spring Fuels and Lubricants Meeting (1997) SAE-971660.
Corcione F.E., Costa M., Allocca L., and Golovitchev V.I. Study of Multiple Injections and Auto-ignition of Diesel Sprays in a Constant Volume Vessel, COMODIA, The 6th Internat. Symp. on Diagnostics and Modeling of Combust. in Internal Combust. Engines (2004)
