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11 November 2018

76.Cetane number & Octane number

November 11, 2018 Posted by AK No comments
CETANE NUMBER

It is an index of ignition quality of the fuel which defines the way of combustion proceeds in the engine. It is the percentage of cetane contained in the fuel.

The higher the cetane number better is the fuel, shorter is the ignition delay.

As the density increases cetane number also increases.

OCTANE NUMBER

It is the measure of knock rating of the fuel combustion in engine.

Better the fuel higher the octane number.

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