Title: Gasoline partially premixed combustion: high efficiency, low NOx and low soot by using an advanced combustion strategy and a compression ignition engine

Authors: Vittorio Manente; Bengt Johansson; Per Tunestal; Marc Sonder; Simone Serra

Addresses: Department of Energy Sciences, Lund University, Sweden ' Department of Energy Sciences, Lund University, Sweden ' Department of Energy Sciences, Lund University, Sweden ' Department of Mechanical Engineering, ETH Zurich, Switzerland ' Department of Mechanical Engineering, Università di Cagliari, Italy

Abstract: A light-duty engine Volvo D5 was run with gasoline to demonstrate that high-octane number fuels, in compression ignition engines, are able to achieve high efficiency, low NOx and soot simultaneously. An advanced three stage injection strategy was developed. A load sweep was performed between 6 and 17 bar IMEP and 2000 rpm. Gross indicated efficiency stays fairly constant at 47% with very low NOx and soot. In the second section of the paper, diesel was compared with gasoline, while in the final part the commercial 140°UA nozzle was compared with the narrower one, 120°, used in the above-mentioned experiments.

Keywords: PPC; partially premixed combustion; gasoline; petrol; diesel; low emissions; high efficiency; advanced injection strategy; low NOx; low soot; compression ignition engines; nitrogen oxides; light-duty engine; high octane fuels; air pollution.

DOI: 10.1504/IJVD.2012.048689

International Journal of Vehicle Design, 2012 Vol.59 No.2/3, pp.108 - 128

Received: 20 Nov 2009
Accepted: 08 Apr 2010

Published online: 23 Apr 2013 *

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