Title: The influence of diesel fuel composition on gaseous and particulate emissions

Authors: Gerhard Lepperhoff, Klaus-Dieter Petters, Harald Baecker, Andreas Pungs

Addresses: FEV Motorentechnik GmbH, Neuenhofstrasse 181, 52078 Aachen, Germany. Lehrstuhl fuer Verbrennungskraftmaschinen, RWTH Aachen, Schinkelstrasse 8, 52062 Aachen, Germany

Abstract: A very efficient and promising approach to improve rapidly the pollutant emission behaviour of an existing diesel vehicle fleet is to optimise the fuel composition with regard to reduced pollutant formation. That is why a European research program was carried out to evaluate the potential of an optimised fuel composition. Twelve diesel-like fuels were composed performing lower aromatic concentrations and containing oxygenating components. A series-like modern passenger car CR DI diesel engine was operated on a test bench under various steady state conditions using these fuels and - for comparison - a diesel-typical reference fuel. Pollutant concentrations were measured in the tailpipe and in-cylinder. To get further information on the transient pollutant emission behaviour of the engine, the investigations were extended by vehicle tests (same engine) on a chassis dynamometer. For all experiments the HC, CO, CO₂, NO_x, O₂ and PM concentrations were measured.

Keywords: aromatic content; exhaust gas emission; oxygenated fuel; DI diesel engine; particulate emission.

DOI: 10.1504/IJVD.2001.001947

International Journal of Vehicle Design, 2001 Vol.27 No.1/2/3/4, pp.10-19

Published online: 15 Aug 2003 *

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