Some Observation on the Effectiveness of Additives for Reducing the Ignition Delay Period of Diesel Fuels 912333

Engine tests have been conducted to establish the ignition delay period of two representative diesel fuels of cetane ratings 40 and 50, and of the lower rated fuel blended with additives. The latter included six organic peroxides, of different chain length and structure, two nitrates and mixtures of additives. The primary role of the additives appeared to be that of heat generation through rapid, exothermic, oxidative degradation following injection to the cylinder. A beneficial degree of synergism was noted with certain mixtures of peroxide and nitrate additives.


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