The Effect of Fuel Composition on Hydrocarbon Emissions from a Spark Ignition Engine: iso-Octane/Toluene and n-Octane/Toluene Fuel Mixtures General Motors Research

Format:

Conference/Event

Author/Creator:

Eng, J. A., author.

Conference Name:

International Fall Fuels & Lubricants Meeting & Exposition (1998-10-19 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

The purpose of this research was to investigate the effect of fuel type and mixture composition on hydrocarbon (HC) emissions from a homogeneous charge spark ignition engine. Detailed chemical kinetic modeling indicated that at the temperatures of relevance for HC consumption in engines (T > 1500 K) a majority of the parent fuel decomposes by unimolecular thermal decomposition and that the radical pool which consumes the remaining smaller HC species is produced from the decomposition of the fuel. These results suggested that chemical kinetic interactions should exist between fuel components in a fuel mixture. Engine experiments were performed with iso-octane/toluene and n-octane/toluene fuel mixtures to determine whether kinetic interactions exist within an engine. Engine-out HC emissions exhibited a non-linear response to the amount of the paraffin in the fuel mixture and demonstrated that kinetic interactions do occur between fuel species. The kinetic interaction between the fuel components is through their effect on the production of the local radical pool in the hydrocarbon oxidation zone

Notes:

Vendor supplied data

Publisher Number:

982557

Access Restriction:

Restricted for use by site license