1985-02-01

Effect of Low Cetane Fuels on Diesel Engine Performance 2-Combustion Performance of a Detroit Diesel 3-71 Engine 850052

Four experimental diesel fuels with cetane numbers (CN) of 40, 37, 35 and 27 have been tested in a Detroit Diesel Allison 3-71 engine using the standard N65 injectors. The 35 CN fuel was a blend of distillates from conventional and tar sands crude with hydrogen treated cat-cracked stock. This provided a fuel typical of the 1990's and beyond, with substantial levels of aromatic and cracked components. The 27 CN fuel was a blend of the same components as the 35 CN fuel only with a larger portion of the hydrogen treated cat-cracked component. The 40 CN fuel was identical to the 35 CN fuel with a .2% DII-3 Diesel Ignition Improver. The 37 CN fuel was a blend of Canadian winter diesel fuel oil and 24% Light Cycle Oil (LCO), The four experimental fuels and one reference fuel were tested at four load levels at each of three engine speeds. The performance and combustion characteristics were compared with the physical and chemical fuel properties.

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