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Dynamometer evaluation and engine wear characteristics of palm oil diesel emulsions
Author(s) -
Sii H. S.,
Masjuki H.,
Zaki A. M.
Publication year - 1995
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02542068
Subject(s) - diesel fuel , diesel engine , dynamometer , automotive engineering , naturally aspirated engine , emulsified fuel , petrol engine , environmental science , thrust specific fuel consumption , throttle , engineering , internal combustion engine , exhaust gas recirculation
Dynamometer engine tests at steady‐state conditions and a wear characteristics study were carried out on an indirect‐injection diesel engine with palm oil diesel (POD) and its emulsions. The POD fuel was obtained in commercial form, and its emulsions were created by mixing POD fuel to contain 5 and 10% of water by volume. Variations in the engine’s performance characteristics were determined from the results of steady‐state tests carried out at fifteen selected torque‐speed matrix points of the engine’s performance map. The wear characteristics tests were performed by running the engine at half throttle setting for twenty hours for each fuel system. Then a desk‐top comparison study was performed between the base‐line fuel system of ordinary diesel (OD), POD, and its emulsions. Promising results have been obtained. Neither the lower cetane number of POD fuel nor its emulsification with water presented obstacles to the operation of the diesel engine during a series of steady‐state engine tests and the twenty‐hour endurance tests. Engine performance and fuel consumption for POD and its emulsions are comparable with those of OD fuel. Accumulations of wear metal debris in crank‐case oil samples were lower with POD and its emulsions than with baseline OD fuel.