Menu
Search
Filters
Close
Menu

Improving Integrity Management Decision Making Using Automated Calibration Of Model Predictions Using CP Survey Data

Picture for Improving Integrity Management Decision Making Using Automated Calibration Of Model Predictions Using CP Survey Data
Available for download

In this paper, a case study is presented for a marine structure for which modelling has been used to predict the protection potentials over the life of the structure.

The aim of any digital transformation of integrity management and in particular corrosion control is the improvement of communication efficiency, planning efficiency and maintenance efficiency. Key issues are predictive maintenance and clarity of the information available so engineers can make informed decisions. Therefore it is not just a question of collecting more information but also the way that information is used and shared with the decision-makers.

Product Number: 51322-17557-SG
Author: Robert Adey, Madhu Sudan Sapkota, John Baynham, Edward Apeh, Cristina Peratta
Publication Date: 2022
Industries: Cathodic Protection , Corrosion Monitoring and Control , Coatings
$0.00
$20.00
$20.00

The actual protection provided to structures by Cathodic-Protection (CP) systems will often be different from that predicted by design calculations. This is for various reasons, including for example coating degradation at a rate different from the accepted standards and practices, assumed environmental conditions not being representative, etc. In addition, structural or CP system changes and retrofits may have been made. It is important, therefore, that models of the structure, used to predict the current and future protection provided by the CP system, are recalibrated as survey data become available during the life of the structure.

Because the models used to simulate CP systems are non-linear and time-dependent, manual calibration processes can be difficult and time-consuming. Additionally, with the development of new sensor technologies providing the opportunity for more real-time CP data, there is a need for an automated approach to calibration.

 

The actual protection provided to structures by Cathodic-Protection (CP) systems will often be different from that predicted by design calculations. This is for various reasons, including for example coating degradation at a rate different from the accepted standards and practices, assumed environmental conditions not being representative, etc. In addition, structural or CP system changes and retrofits may have been made. It is important, therefore, that models of the structure, used to predict the current and future protection provided by the CP system, are recalibrated as survey data become available during the life of the structure.

Because the models used to simulate CP systems are non-linear and time-dependent, manual calibration processes can be difficult and time-consuming. Additionally, with the development of new sensor technologies providing the opportunity for more real-time CP data, there is a need for an automated approach to calibration.

 

Product tags
Also Purchased
Picture for Improved Cathodic Protection Current Distribution for Above Ground Storage Tank Bottoms Due to Low Resistivity Vapor Corrosion Inhibitor Use
Available for download

Improved Cathodic Protection Current Distribution for Above Ground Storage Tank Bottoms Due to Low Resistivity Vapor Corrosion Inhibitor Use

Product Number: 51322-17666-SG
Author: Sujay Math
Publication Date: 2022
$20.00

In this paper, the CP current distribution with changing resistivities and the area of influence required to meet effective CP criteria, is studied. The results indicate that the tank pad electrolyte resistivity plays a significant role in achieving uniform CP current distribution. The paper also explores the use of Vapor Corrosion Inhibitor (VCI) and its effect on electrolyte resistivity and the resulting CP current distribution.
Picture for Inline Cathodic Protection Current Mapping - Applications
Available for download

Inline Cathodic Protection Current Mapping - Applications

Product Number: 51322-17629-SG
Author: Dennis Janda
Publication Date: 2022
$20.00

Inline cathodic protection current mapping is a unique method of assessing a pipeline’s cathodic protection. This is accomplished by measuring the actual current received by the pipeline continuously along the entire pipeline length. Unlike pipe to soil potentials, which can have a great deal of error in them due to forces often beyond our control, the CP mapping tool uses the physical properties of the pipe itself to measure the CP current. The pipe is a very stable part of the circuit, unlike the soil surrounding it.
Picture for Applying Machine Learning Techniques To Identify And Predict Behavior Of Rectifier And Groundbed State Change
Available for download

Applying Machine Learning Techniques To Identify And Predict Behavior Of Rectifier And Groundbed State Change

Product Number: 51322-17833-SG
Author: Matt Barrett, Will Maize, Tony da Costa
Publication Date: 2022
$20.00

Impressed current rectifiers are the backbone of a pipeline operator’s cathodic protection (CP) systems. A rectifier’s ability to protect a large length of electrically continuous pipeline considerably improves efficiencies and reduces material costs as compared to galvanic systems. However, like galvanic anodes, impressed current anodes are a consumable asset, and require replacement at the end of their service life to ensure that the rectifier can continue to adequately protect the pipeline.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support