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← Back to SCIENTIFIC JOURNAL OF IFToMM “PROBLEMS OF MECHANICS” № 3(56), 2014

ASSESSMENT CRITERIA FOR IGNITION PROPERTIES OF DIESEL ENGINE FUELS

Authors: Pawel Krause


Abstract:

In case of biodiesels (and also some marine residual petroleum fuels) their cetane number, proper according to fuel standards, is not sufficient indicator ensuring good quality of combustion process and engine performance, comparable with use of typical distillate petroleum diesel fuels. In article, factors affecting on atomization quality, typical chemical composition of rapeseed oil methyl ester (RME) and changes occur during atomization of fuel, having influence on combustion process, have been investigated. Also, proposal of the use an additional quality ignition criterion taking into account viscosity and surface tension of major chemical component fraction, instead of viscosity and surface tension of RME or its blend diesel fuel, should be taken under consideration.

Keywords: diesel engines, fishing vessels, diesel fuel, biodiesel, ignition delay, atomization, criteria of similarity, viscosity, surface tension.

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