Numerical Study and Design of an Impressed Current Cathodic Protection System for Buried Metallic Pipes

• Published in: 2018 Third Scientific Conference of Electrical Engineering (SCEE) pp. 95 - 100
• Main Authors: Mohammed, Saif aldeen H., Abdulbaqi, Isam M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.12.2018
• Subjects: and a reference electrode (CU-CUSO4); cathodic protection; corrosion; Finite Element Method; impressed current
• DOI: 10.1109/SCEE.2018.8684076

In this work, the idea of the impressed current cathodic protection CP method for metallic buried pipes is declared; then, the available theoretical background of the design of such a system is studied. Since all the available formulas of the CP system design are empirical and approximate, the numerical approach is considered using the Finite Element Method (FEM) to reach a more accurate description of the system behavior. The already existing cathodic protection CP system of the pipe used to transfer raw water from the Tigris River to Al-Quds Gas Station in Baghdad is considered as a case study. Using FE computer package ANSYS for this purpose suffers from meshing the model. A small-scale model of the system is considered to describe the operation and declare the analysis. A modified approach is suggested for designing such a system and achieves more accurate protection practically. A suggestion to improve the CP system of Al-Quds Gas Station is mentioned.