Technical Evaluation of Cathodic Protection of Subsea Structures

Precious Chisom Jumbo-Egwurugwu, Franklin Okoro, Ibe Emmanuel and Obo-Obaa Elera Njiran
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Precious Chisom Jumbo-Egwurugwu: University of Port Harcourt, Nigeria
Franklin Okoro: CleanScript Group
Ibe Emmanuel: University of Port Harcourt, Nigeria
Obo-Obaa Elera Njiran: University of Port Harcourt, Nigeria

International Journal of Research and Scientific Innovation, 2022, vol. 9, issue 4, 01-05

Abstract: This paper carried out the performance evaluation of cathodic protection in comparison with other corrosion prevention techniques based on factors like conductivity, maintenance requirement, cost, electrical continuity, and surface area of structure treated. In the course of the work, the comparative analysis of these techniques was carried out using a multi criteria analysis tool ‘TOPSIS’. After going through all the stages in the TOPSIS assessment, the best corrosion prevention technology with respect to all the considered criteria, which comprised of: treatment time, effectiveness, energy consumption, durability, economics and maturity is reinforcing materials with a TOPSIS score of 0.7745. The second-best technology is cathodic protection with a TOPSIS score of 0.6729, followed by surface treatment and coating with a TOPSIS score of 0.5903. Inhibitors came fourth with a TOPSIS score of 0.5897 while the worst technology per the analysis in this study is electrochemical chloride removal with a TOPSIS score of 0.2355.

Date: 2022
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