A mathematical model previously developed for predicting the cathodic protection of pipeline networks is extended to treat cathodic protection of the bottoms of cylindrical above-ground storage tanks. A single tank was modeled for which protection was provided by an anode located infinitely far from the tank bottom, by a series of anodes distributed around the circumference of the tank, and by an anode grid laid directly underneath the tank bottom. The influence of an insulating barrier associated with secondary spill containment was also modeled for the arrangements in which anodes are placed adjacent to the tank bottom. The performance predictions are strongly dependent on anode placement, the oxygen content of the soil, and the presence of insulating barriers associated with secondary spill containment.


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    Title :

    A mathematical model for the cathodic protection of tank bottoms


    Additional title:

    Ein mathematisches Modell für den kathodischen Schutz von Tankböden


    Contributors:

    Published in:

    Corrosion Science ; 47 , 3 ; 849-868


    Publication date :

    2005


    Size :

    20 Seiten, 11 Bilder, 1 Tabelle, 33 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






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