Ignition Quality Rating Methods for Diesel Fuels-A Critical Appraisal

852080

10/01/1985

Event
1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
A critical evaluation of the current ASTM method of rating diesel fuels, and of the available non-engine techniques for the estimation of cetane nunbers of diesel fuels is presented. The relationship between ignition quality and fuel composition is reviewed and it is shown that each member of an homologous series of hydrocarbons does not have the same ignition characteristics as the other members of the series. It is emphasized that the belief that paraffins have relatively high cetane ratings as compared to aromatics and cycloparaffins is not always correct. The basic flaw in the cetane index correlations, which use the easily measurable physical properties of the fuels as independent parameters, is explained. A fuel data base has been used to compare the different correlations. The global fuel characterization technique based on proton nuclear magnetic resonance spectroscopy has shown to be an accurate and reliable alternative to the widely criticized ASTM D613 standard cetane engine test.
Meta TagsDetails
DOI
https://doi.org/10.4271/852080
Pages
16
Citation
Gülder, Ö., Glavinčevski, B., and Burton, G., "Ignition Quality Rating Methods for Diesel Fuels-A Critical Appraisal," SAE Technical Paper 852080, 1985, https://doi.org/10.4271/852080.
Additional Details
Publisher
Published
Oct 1, 1985
Product Code
852080
Content Type
Technical Paper
Language
English