caa a22 4500 47581505X CHVBK 20180406123807.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1023/A:1004048907948 doi (NATIONALLICENCE)springer-10.1023/A:1004048907948 A mathematical model for the internal cathodic protection of cylindrical structures by wire anodes [Elektronische Daten] [S. Martinez, I. Štern] The applicability of a two-dimensional mathematical model of the impressed current cathodic protection (CP) system of the interior wall of a cylindrical structure was investigated. The modelled system was an axisymmetric cylindrical column filled with electrolyte with a wire anode running along its entire length and displaced from the column axis. Model inputs included anode and cathode dimensions, the anode-to-cathode distance, the electrolyte conductivity and limiting current density of oxygen reduction. A semi-analytical solution to the Laplace equation was used to compute the distribution of electrical potential. From these results, the nonuniform current density distribution was obtained to a first approximation by entering the computed values of the position-dependent cathode polarization potential into the nonlinear experimentally obtained polarization expression. The experimental electrical potential distribution compared well with that predicted by the model. Results showed the possibility of overprotection occurring in the system. The mathematical analysis was also extended to the case of a system with two wire anodes. Kluwer Academic Publishers, 2000 cathodic protection nationallicence current distribution nationallicence modelling nationallicence potential distribution nationallicence Martinez S. Faculty of Chemical Engineering and Technology, Marulicev Trg 19, PO Box 177, HR-10000, Zagreb, Croatia aut Štern I. Faculty of Chemical Engineering and Technology, Marulicev Trg 19, PO Box 177, HR-10000, Zagreb, Croatia aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/9(2000-09-01), 1053-1060 0021-891X 30:9<1053 2000 30 10800 https://doi.org/10.1023/A:1004048907948 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1004048907948 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martinez S. Faculty of Chemical Engineering and Technology, Marulicev Trg 19, PO Box 177, HR-10000, Zagreb, Croatia aut NATIONALLICENCE 700 1- Štern I. Faculty of Chemical Engineering and Technology, Marulicev Trg 19, PO Box 177, HR-10000, Zagreb, Croatia aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/9(2000-09-01), 1053-1060 0021-891X 30:9<1053 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer