It has been known for more than 50 years that some diesel engines could be fueled for short periods with vegetable oils, either neat or with hydrocarbon fuel additives. World overproduction of soybean oil is increasing its potential as an economical diesel fuel extender. The subject test program was undertaken to determine long-term effects of this alternate fuel on a modern, high-speed diesel engine.The choice of a vegetable oil (soybean oil) as an alternative diesel engine fuel or fuel extender rather than the other major biomass motor fuel (ethanol) is related to the relative properties of these fuels. The common U.S. vegetable oils are much closer to hydrocarbon (No. 2D) diesel fuel than is ethanol in both cetane rating and volumetric energy content. Unlike ethanol, the vegetable oils can be blended 1:1 with No. 2D fuel to produce engine power and volumetric fuel consumption levels practically identical to those obtained with 100% No. 2D fuel. However, engine operation and laboratory bench tests demonstrated that some fuel blends were unsatisfactory for continuous use. The reasons for these difficulties were determined and a satisfactory fuel blend was proven through prolonged testing.The results of the soybean oil fuel extender tests are considered to be particularly significant because:


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    Title :

    Long-Term Operation of a Turbocharged Diesel Engine on Soybean Oil Fuel Blends


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    West Coast International Meeting and Exposition ; 1983



    Publication date :

    1983-08-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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