Title: Multi-zone modelling of PCCI combustion

Authors: U. Eguz, L.M.T. Somers, C.A.J. Leermakers, L.P.H. De Goey

Addresses: Department of Mechanical Engineering, Eindhoven University of Technology, Den Dolech 2 5612AZ, Eindhoven, The Netherlands. ' Department of Mechanical Engineering, Eindhoven University of Technology, Den Dolech 2 5612AZ, Eindhoven, The Netherlands. ' Department of Mechanical Engineering, Eindhoven University of Technology, Den Dolech 2 5612AZ, Eindhoven, The Netherlands. ' Department of Mechanical Engineering, Eindhoven University of Technology, Den Dolech 2 5612AZ, Eindhoven, The Netherlands

Abstract: Early Direct Injection Premixed Charge Compression Ignition (EDI PCCI) combustion is a promising concept for the diesel combustion. Although EDI PCCI assures very low soot and NO_x emission levels, the injection is uncoupled from combustion, which narrows down the operating conditions. The main purpose is to analyse the effect of mixing. A multi-zone model is presented with the use of detailed chemical models. The paper presents the effects of parameters, like number of zones and chemical model, on emissions and ignition delay. A dedicated set of experiments is also utilised to assess the quality of the model.

Keywords: EDI PCCI; early direct injection PCCI; premixed charge compression ignition; ignition delay; chemical models; stratification; multi-zone modelling; diesel combustion; vehicle emissions; vehicle design.

DOI: 10.1504/IJVD.2011.038047

International Journal of Vehicle Design, 2011 Vol.55 No.1, pp.76 - 90

Received: 13 Jan 2010
Accepted: 02 Jul 2010
Published online: 10 Apr 2015 *

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