A high-resolution corrosion probe was placed within the airhorn section of the exhaust gas recirculation (EGR) loop of a heavy-duty diesel engine. The corrosion rate of the mild-steel probe elements was evaluated as a function of fuel sulfur level, EGR fraction, dewpoint margin, and humidity. No significant corrosion was observed while running the engine using a No. 2 grade, < 15ppm sulfur diesel fuel; however, high corrosion rates were observed with No. 2 diesel fuel (∼350 ppm sulfur) while condensing water in the EGR loop. The rate of corrosion on the mild steel elements increased with increasing levels of sulfate in the condensate. However, the engine conditions influencing the sulfate level were not clearly identified in this study.


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    Titel :

    Assessment of Corrosivity Associated With Exhaust Gas Recirculation in a Heavy-Duty Diesel Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Sarles, Andy (Autor:in) / Wilson, Dane (Autor:in) / Thomas, John F. (Autor:in) / Kass, Michael D. (Autor:in) / Lewis, Samuel A. (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    11.04.2005




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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