A Model for Hydrocarbon Emissions from SI Engines Laboratory for Energetics Technical University of Denmark

Format:

Conference/Event

Author/Creator:

Schramm, Jesper, author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1990-10-22 : Tulsa, Oklahoma, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

A model which calculates the hydrocarbon emissions from an SI engine is presented. The model was developed in order to obtain a better under-standing of experimental results from an engine operating on different fuels and lubricants. The model is based on the assumptions that fuel is stored in crevices and oil film during intake and compression followed by desorption during expansion and exhaust. The model also calculates the amount of desorbed material that undergoes in cylinder oxidation and exhaust port oxidation. The model succesfully predicts the trends followed by varying different engine parameters. The effect of changing the lubricant is of the same order of magnitude as found experimentally, but the effect of changing the fuel could not be predicted very well by the model. A possible explanation is, that the lubricant film thickness varies due to viscosity variations of the oil film, when the fuel is dissolved in the film

Notes:

Vendor supplied data

Publisher Number:

902169

Access Restriction:

Restricted for use by site license