The purpose of this study is to improve low-temperature flow-properties of biodiesel fuels (BDF) by blending with ethanol and to analyze the combustion characteristics in a diesel engine fueled with BDF/ethanol blended fuel. Because ethanol has a lower solidifying temperature, higher oxygen content, lower cetane number, and higher volatility than BDF, ethanol blending would have a large effect on cold flow performance, mixture formation, ignition, combustion, and exhaust emissions.The engine experiments in the study were performed with a diesel engine and blends of BDF and ethanol at different blending ratios. The cold flow performance of the blended fuels was evaluated by determining the fuel cloud point. The experimental results show that the ethanol blending lowers the cloud point of the blended fuel and significantly reduces smoke emissions from the engine without deteriorating other emissions or thermal efficiency. The reduced smoke emissions enable the engine to operate at retarded fuel injection timings getting a reduction in NOx emissions.


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    Title :

    The Cold Flow Performance and the Combustion Characteristics with Ethanol Blended Biodiesel Fuel


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Powertrain & Fluid Systems Conference & Exhibition ; 2005



    Publication date :

    2005-10-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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