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Combustion Characteristics of a DI Diesel Engine with Emulsified Palm Oil Butyl Ester
Published October 03, 2012 by Society of Automotive Engineers of Japan in Japan
Palm oil butyl ester (PBE) has lower pour point compared with palm oil methyl ester (PME). In this study, to reduce NOx and smoke emissions of PBE, emulsified PBE was made and its fuel properties and combustion characteristics were investigated using a single-cylinder DI diesel engine, and were compared with PME, emulsified PME, JIS No.2 diesel fuel. From the experimental results, NOx and smoke emissions of emulsified PBE reduce simultaneously in comparison with PBE. Emulsified PBE has better emulsification stability, almost the same thermal efficiency and NOx emission, and slightly higher HC, CO and smoke emissions compared with emulsified PME.