scholarly journals Smart Cathodic Protection System for Real-Time Quantitative Assessment of Corrosion of Sacrificial Anode Based on Electro-Mechanical Impedance (EMI)

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 12230-12240
Author(s):  
Durgesh Tamhane ◽  
Jeslin Thalapil ◽  
Sauvik Banerjee ◽  
Siddharth Tallur
Keyword(s):  
Real Time ◽  
Cathodic Protection ◽  
Quantitative Assessment ◽  
Mechanical Impedance ◽  
Protection System ◽  
Sacrificial Anode ◽  
Cathodic Protection System

Optimization of Cathodic Protection System Design for Pipe-Lines Structure with Ribbon Sacrificial Anode Using BEM and GA

2011 ◽  
Vol 462-463 ◽  
pp. 1267-1272
Author(s):  
M. Safuadi ◽  
M. Ridha ◽  
Syifaul Huzni ◽  
Syarizal Fonna ◽  
Ahmad Kamal Ariffin ◽  
...  
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Cathodic Protection ◽  
Protection System ◽  
Sacrificial Anode ◽  
Laplace’S Equation ◽  
Laplace's Equation ◽  
Cathodic Protection System ◽  
Element Method ◽  
Pipe Lines

In this paper, combination of a boundary element formulation and genetic algorithm (GA) was developed and used for analyzing of cathodic protection systems of buried pipe-lines structures. It is very important to maintain the effectiveness of the cathodic protection system for pipeline structure, in order to lengthen the lifetime of the system. However, nowadays the evaluation of the effectiveness of the system only could be performed after the system applying in the field. This study was conducted to combine 2D boundary element method (BEM) and GA in order to evaluate the effectiveness of the cathodic protection system for pipe-lines structure using ribbon sacrificial anode. Two factors i.e. the soil conductivity and the distance between pipe-lines and anode, were analyzed by using the proposed method. In this method, the potential in the domain was modeled by Laplace’s equation. The anode and cathode areas were represented by polarization curves of different metals. Boundary element method was applied to solve the Laplace’s equation to obtain any potential and current density in the whole surface of the pipe. The pipe and anode were modeled into 2D model. The numerical analysis result shows that the optimum distance between pipe-lines and anode can be determined by combining BEM and GA.

The Experimental Measurement on the Throwing Power of Sacrificial Anode Cathodic Protection for Concrete Piles in Natural Sea Water

2015 ◽  
Vol 1125 ◽  
pp. 350-354 ◽  
Author(s):  
Jin A Jeong ◽  
Chung Kuk Jin
Keyword(s):  
Reinforced Concrete ◽  
Cathodic Protection ◽  
Sea Water ◽  
Protection System ◽  
High Resistivity ◽  
Sacrificial Anode ◽  
Throwing Power ◽  
Water Line ◽  
Concrete Piles ◽  
Cathodic Protection System

This paper represents the experimental studies on the throwing power of sacrificial anode cathodic protection system applied to reinforced concrete piles in salt water condition by means of zinc anodes. Many previous studies show the effectiveness of sacrificial anode cathodic protection system, however, the major problem of sacrificial anode cathodic protection system is limited a distance to the point reaching protection current from the anode in high resistivity environments such as concrete, etc. In case of concrete pile in sea water condition, it should be combined submerged zone, tidal zone, splash zone, and atmospheric zone. In this study, the cathodic protection current by zinc sacrificial anodes was limited to scores of centimeters above the water line with tidal, depending on the concrete resistivity. Experimental tests were carried out on pile type reinforced concrete specimens with the change of water level. The test factors were corrosion and protection potential, current, and 4 hour depolarization potential. As a result of tests, cathodic protection current by zinc sacrificial anode was influenced up to about 10cm above the water line, and high resistivity areas such as atmospheric zone could not be protected with this system.

The Evaluation of Cathodic Protection System Design by Using Boundary Element Method

2011 ◽  
Vol 339 ◽  
pp. 642-647 ◽  
Author(s):  
M. Ridha ◽  
M. Safuadi ◽  
Syifaul Huzni ◽  
Israr Israr ◽  
Ahmad Kamal Ariffin ◽  
...  
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Cathodic Protection ◽  
Storage Tank ◽  
Three Dimensional ◽  
Protection System ◽  
Sacrificial Anode ◽  
Protection Systems ◽  
Cathodic Protection System ◽  
Element Method

Cathodic protection system is one of corrosion protection systems that well acknowledged protecting infrastructure such as pipeline and storage tank. Early damage of the infrastructure can be caused by improper design of the protection system. Currently, many cathodic protection systems are designed only based on the previous experiences. It is urgently needed the tool that can be used to simulate the effectiveness of any design of cathodic protection system before the system is applied to any structure. In this study, the three-dimensional boundary element method was developed to simulate the effectiveness of sacrificial anode cathodic protection system. The potential in the domain was modeled using Laplace equation. The equation was solved by applying boundary element method, hence the potential and current density on the metal surface and at any location in the domain can be obtained. The boundary conditions on the protected structures and sacrificial anode were represented by their polarization curves. A cathodic protection system for liquid storage tank and submersible pump were evaluated in this study. The effect of placement of sacrificial anode were examined to optimize the protection system. The result shows that the proposed method can be used as a tool to simulate the effectiveness of the sacrificial anode cathodic protection system.

scholarly journals Analysis of an Educational Cathodic Protection System with a Single Drainage Point: Modeling and Experimental Validation in Aqueous Medium

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2099 ◽  
Author(s):  
Luís Matos ◽  
José Martins
Keyword(s):  
Aqueous Medium ◽  
Cathodic Protection ◽  
Chemical Engineering ◽  
Materials Science ◽  
Electrical Potential ◽  
Protection System ◽  
Sacrificial Anode ◽  
Anode Area ◽  
Modeling Data ◽  
Cathodic Protection System

Cathodic protection, often taught in curricular units, such as corrosion and materials science, is an important subject in the study of chemical engineering. The implementation of lab setups and experimental activities in this field, are core to promoting understanding of the underlying concepts and to developing “hands-on” skills fundamental to the success of future process engineers. This paper reports the influence of different variables on the electrical potential and current behaviors of an educational cathodic protection system operated with a single drainage point. The system comprised a steel bar cathode connected to a zinc sacrificial anode, both placed in aqueous medium. The study variables were the anode area, the cathode diameter, the NaCl electrolyte concentration and the anode placement. Each variable showed a specific influence on the attenuation curves, allowing us to conclude that: (1) increasing the sacrificial anode area, or decreasing the resistivity of the medium, promotes more electronegative potentials on the structure and higher currents; (2) increasing the cathode diameter decreases the protection capacity; (3) positioning the anode in the middle of the cathode lengthwise gives rise to a more balanced potential distribution; and (4), the attenuation curves, both for potential and current, can be successfully predicted using equations based on Morgan and Uhlig’s work. High correlations were obtained between the experimental and modeling data for all the studied variables.

scholarly journals Performance improvement of sacrificial anode cathodic protection system for above ground storage tank

2020 ◽  
Vol 2 (12) ◽  
Author(s):  
Muhammad N. Jawad ◽  
Ghafour Amouzad Mahdiraji ◽  
Mohammad Taghi Hajibeigy
Keyword(s):  
Energy Loss ◽  
Performance Improvement ◽  
Cathodic Protection ◽  
Storage Tank ◽  
Saline Water ◽  
Protection System ◽  
Sacrificial Anode ◽  
Storage Tanks ◽  
Conventional System ◽  
Cathodic Protection System

Abstract This study presents a controlled sacrificial anode (magnesium anodes) cathodic protection system for aboveground storage tanks. The proposed method is able to control the anode’s current, which leads to enhance the performance of anodes, therefore, increase the anode’s lifetime. The proposed system has been implemented in a laboratory-based tank contains saline water (5661 ppm). In this experiment, the overprotection and anode energy loss were eliminated, and the anodes lifetime has been extended 35.55 times higher compared to the conventional system. The proposed method reduced the protection current and stabilized the system overall.

scholarly journals Effect of soil resistivity on the design of sacrificial anode cathodic protection system

2013 ◽  
Vol 4 (3) ◽  
pp. 142-158
Author(s):  
Dheya N. Abdulamer
Keyword(s):  
Cathodic Protection ◽  
Pipeline Steel ◽  
Protection System ◽  
Sacrificial Anode ◽  
High Current ◽  
Soil Resistivity ◽  
Current Output ◽  
Different Types ◽  
Cathodic Protection System

In this research, the effect of soil resistivity on the sacrificial cathodicprotection of a pipeline steel of oil was studied. Sufficient sacrificial cathodicprotection could be obtained at various soil resistivty for different types ofanodes. High current output (2.98, 2.38 and 8.33 Amps) of Zn, Al and Mganodes respectively, are obtained at 25 ohms.cm soil resistivity. Simultaneous,for the same conditions, low numbers and large weights of anodes are requiredto satisfy protection

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