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 NOx 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: 14 Jan 2011 *

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