An experimental investigation has been carried out to produce a stable diesel / water emulsion fuel and use it in a diesel engine under different operating and design conditions. The use of advanced mixing technique and emulsifying agent enabled the production of stable emulsion of up to 30% water in diesel for up to one week. In some of the water/diesel ratios, the emulsion was stable for about 4 weeks.The physical properties of the stable W/D emulsions in terms of density, surface tension, and viscosity were measured and investigated. The effect of surfactant concentration, mixing time and mixer speed has been studied. A computer image analyzer system was used to investigate the water droplets - fuel interaction and the water droplets distribution within the diesel phase. The stable emulsion has been used in an indirect injection Ricardo E6 diesel engine and performance and engine roughness parameters have been measured. The engine was fully computerized and the cylinder pressure data, crank angle data and other performance data were stored in a PC for off-line analysis. The effect of water/diesel ratio, engine speeds, loads, fuel injection angle, and engine compression ratio on combustion maximum pressure, maximum pressure rise rate, brake power output and brake specific fuel consumption has been studied. The water/diesel emulsion was stable for long enough time for transportation and use. The addition of water in diesel generally affected the engine combustion noise, brake power output and specific fuel consumption.


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    Titel :

    Performance and Engine Roughness of a Diesel Engine Running on Stabilized Water Diesel Emulsion


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    8th International Conference on Engines for Automobiles ; 2007



    Erscheinungsdatum :

    16.09.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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