Article (Scientific journals)
Experimental validation of concentration profiles in an HCCI engine, modelled by a multi-component kinetic mechanism: Outline for auto-ignition and emission control
Machrafi, Hatim
2010In Energy Conversion and Management, 51 (10), p. 2025-2031
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Keywords :
Combustion; Reduced kinetic mechanism; HCCI auto-ignition; Experimental validation; Engine gas sampling during combustion; Gas chromatography and mass; spectrometry
Abstract :
[en] In order to contribute to the auto-ignition and emission control for Homogeneous Charge Compression Ignition (HCCI), a kinetic multi-component mechanism, containing 62 reactions and 49 species for mixtures of n-heptane, iso-octane and toluene is validated in this work, comparing for the concentration profiles of the fuel, the total hydrocarbons, O-2, CO2, CO, acetaldehyde and iso-butene. These species are sampled during the combustion and quantified. For these measurements an automotive exhaust analyser, a gas chromatograph, coupled to a mass spectrometer and a flame ionisation detector are used, depending on the species to be measured. The fuel, total hydrocarbons, O-2, CO2, iso-butene and acetaldehyde showed a satisfactory quantitative agreement between the mechanism and the experiments. Both the experiments and the modelling results showed the same formation behaviour of the different species. An example is shown of how such a validated mechanism can provide for a set of information of the behaviour of the auto-ignition process and the emission control as a function of engine parameters. (C) 2010 Elsevier Ltd. All rights reserved.
Disciplines :
Energy
Physics
Author, co-author :
Language :
English
Title :
Experimental validation of concentration profiles in an HCCI engine, modelled by a multi-component kinetic mechanism: Outline for auto-ignition and emission control
Publication date :
2010
Journal title :
Energy Conversion and Management
ISSN :
0196-8904
eISSN :
1879-2227
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
51
Issue :
10
Pages :
2025-2031
Peer reviewed :
Peer Reviewed verified by ORBi
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