Title: Kinetic modelling of a surrogate diesel fuel applied to 3D auto-ignition in HCCI engines

Authors: R. Bounaceur, P.A. Glaude, R. Fournet, F. Battin-Leclerc, S. Jay , A. Pires Da Cruz

Addresses: Departement de Chimie Physique des Reactions, UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France. ' Departement de Chimie Physique des Reactions, UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France. ' Departement de Chimie Physique des Reactions, UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France. ' Departement de Chimie Physique des Reactions, UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France. ' IFP, TAE – R1022R, 1 and 4, av. Bois Preau, 92852 Rueil Malmaison Cedex, France. ' IFP, TAE – R1022R, 1 and 4, av. Bois Preau, 92852 Rueil Malmaison Cedex, France

Abstract: The prediction of auto-ignition delay times in HCCI engines has risen interest on detailed chemical models. This paper describes a validated kinetic mechanism for the oxidation of a model Diesel fuel (n-decane and α-methylnaphthalene). The 3D model for the description of low and high temperature auto-ignition in engines is presented. The behaviour of the model fuel is compared with that of n-heptane. Simulations show that the 3D model coupled with the kinetic mechanism can reproduce experimental HCCI and Diesel engine results and that the correct modelling of auto-ignition in the cool flame region is essential in HCCI conditions.

Keywords: kinetic modelling; surrogate diesel fuels; n-decane; alpha-methylnaphthalene; auto-ignition; homogeneous charge compression ignition; HCCI engines; chemical models; simulation; cool flame region.

DOI: 10.1504/IJVD.2007.013222

International Journal of Vehicle Design, 2007 Vol.44 No.1/2, pp.124 - 142

Published online: 12 Apr 2007 *

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