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RESEARCH PAPERS

Determination and Significance of Gaseous Fuel Octane Numbers

[+] Author and Article Information
I. Baxter

Waukesha Motor Company, Waukesha, Wis.

J. Eng. Power 87(2), 166-168 (Apr 01, 1965) (3 pages) doi:10.1115/1.3678156 History: Received December 23, 1963; Online January 10, 2012

Abstract

Gaseous fueled engines have for many years been built without an undue concern for the octane number of the fuel, as long as it contained a substantial amount of methane. The steady increase in engine power ratings in recent years has made the determination of octane numbers on specific gas mixtures desirable. The introduction of turbocharging for gas engines places further stress on fuel quality. A standardized apparatus and technique for determining octane numbers of gaseous fuels in the ASTM-CFR knock test engine is now available. The means for making such ratings are described. While ratings on mixtures of saturate hydrocarbon gases can be calculated with acceptable accuracy, the presence of unsaturates or of antiknock additives makes an engine test necessary.

Copyright © 1965 by ASME
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