3D Cathodic Protection Design Of Ship Hulls
Author(s)
L. Bortels, B. Van den Bossche, M. Purcar, A. Dorochenko
& J. Deconinck
Abstract
This paper presents a 3D software tool for the design and optimization of
cathodic protection systems for submerged structures. It provides the corrosion
engineer with a powerful tool for managing operational costs, significantly
reducing expensive commissioning surveys and costly repairs, adding major
value to the cathodic protection business.
The software is entirely CAD integrated such that it can deal with 3D
CP-configurations of arbitrary complexity with parameterisation of all
geometrical dimensions. The CP model is based on the potential model
describing the ohmic drop in the electrolyte (soil, water) with non-linear
boundary conditions that model the electrochemical reactions at anodes and
cathodes.
In this paper, it is explained why the Finite Element Method is used to solve
the problem. As an example the protection level of a hypothetical marine vessel
using impressed current cathodic protection (ICCP) systems will be investigated.
In addition, the underwater electric potential (UEP) of the vessel will be
calculated.
Keywords: cathodic protection simulations, ICCP, advanced software package,
marine vessel.
1 Introduction
Cathodic Protection (CP) systems are widely applied to buried and offshore
structures. Most often, these CP systems contain a series of impressed current
and/or sacrificial anodes, sometimes placed at a remote distance from the
structure. The entire configuration of the CP system and the structures
necessitate and justify the use of numerical simulations.
Keywords
cathodic protection simulations, ICCP, advanced software package,
marine vessel.
Related Book
Other papers in this volume
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