A test series was conducted on a six-cylinder diesel engine to study the impacts of controlled factors (i.e., oxygen content of the combustion air, water content of the fuel, fuel-flow rate, and fuel-injection timing) on engine performance and emissions using Taguchi techniques. Separate experiments were conducted using a commercial-grade No. 2-diesel and a lower-grade No. 6-diesel fuel. This paper reports the test results for No. 6 fuel. Oxygen enrichment improved the combustion process with the lower-grade fuel. There was no observable change in turbocharger performance due to oxygen enrichment.The results showed significant reductions in smoke and particulate emissions, a small increase in thermal efficiency and a large increase in NOx emissions when oxygen-enriched air was used. The effect of water-emulsified fuel on NOx emissions was negligible. When the engine was operated with No. 6 fuel and normal air, the thermal efficiency was lower and the exhaust emissions in general were higher than with No. 2 fuel.


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    Titel :

    Oxygen-Enriched Diesel Engine Experiments with a Low-Grade Fuel


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Longman, D. E. (Autor:in) / Cole, R. L. (Autor:in) / Sekar, R. R. (Autor:in) / Marciniak, T. J. (Autor:in) / Marr, W. W. (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1993



    Erscheinungsdatum :

    01.10.1993




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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