Cathodic protection of a buried pipeline by solar energy

Abstract

Cathodic protection is employed intensively on the steel drains in oil and gas industry. It is a technique of prevention against the corrosion which transforms the structure into a cathode of a corrosion cell; Two types of cathodic protection systems are usually applied: The galvanic protection systems use the galvanic anodes, also called the sacrificial anodes, which are electrochemically more electronegative than the structure to be protected, the other system is by imposed current, powered by electrical generator with D.C. output towards the structure to be protected. The object of this study is to design a cathodic protection system by impressed current supplied with solar energy panels applied to a pipeline.