A previously developed first-principles-based equation for potential attenuation along marine pipelines and risers with multiple, equally spaced, identical galvanic anodes was modified to accommodate an error in its derivation. Both the original and modified equations account for the electrolyte (anode), coating, polarization, and metallic path resistances and, as such, represent improvements over previously available representations. Coordinate mapping-based finite difference method (CoMB-FDM) solutions are presented; and to the extent possible, accuracy of the proposed modified equation is verified.


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    Title :

    A modified potential attenuation equation for cathodically polarized marine pipelines and risers


    Additional title:

    Eine modifizierte Potentialdämpfungs-Gleichung für den kathodischen Korrosionsschutz von Meerespipelines und -steigleitungen


    Contributors:

    Published in:

    Corrosion, Houston ; 59 , 8 ; 684-687


    Publication date :

    2003


    Size :

    4 Seiten, 3 Bilder, 2 Tabellen, 3 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English