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Thursday, March 26, 2009: 8:05 AM
C201 (Georgia World Congress Center)
This paper presents a 3D software tool for the design and optimization of cathodic protection systems for offshore and marine environments. It provides the corrosion engineer an intelligent 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, offering a user-friendly interface for the CP design, including file import from numerous other CAD packages. The key model features include amongst others: parameterization of all geometrical dimensions, simulation of 3D CP-configurations with arbitrary complexity (including position and shape of ground beds, casings, ....), interference from 3rd party CP-systems, ohmic drop effects in the electrolyte, anodic and cathodic reaction polarization behavior, impressed current and sacrificial anodes, effect of cabling (ohmic resistance along cable, effect of cable breakdown, …), varying electrolyte resistivity, local metal dissolution based on Faraday’s law.
In this paper several examples will be presented including oil platform, ballast tank and a marine vessel for which the ICCP has been optimized in order to minimize the underwater electrical potential and corrosion related magnetic signature.
The software is entirely CAD integrated, offering a user-friendly interface for the CP design, including file import from numerous other CAD packages. The key model features include amongst others: parameterization of all geometrical dimensions, simulation of 3D CP-configurations with arbitrary complexity (including position and shape of ground beds, casings, ....), interference from 3rd party CP-systems, ohmic drop effects in the electrolyte, anodic and cathodic reaction polarization behavior, impressed current and sacrificial anodes, effect of cabling (ohmic resistance along cable, effect of cable breakdown, …), varying electrolyte resistivity, local metal dissolution based on Faraday’s law.
In this paper several examples will be presented including oil platform, ballast tank and a marine vessel for which the ICCP has been optimized in order to minimize the underwater electrical potential and corrosion related magnetic signature.