scholarly journals Cathodic Protection Simulation of Linear Anode Alongside Coated and Uncoated Pipe

CORROSION ◽  
10.5006/3377 ◽  
2020 ◽  
Vol 76 (4) ◽  
pp. 385-397 ◽  
Author(s):  
Mehdi Attarchi ◽  
Marco Ormellese ◽  
Andrea Brenna
Keyword(s):  
Numerical Simulation ◽  
Current Distribution ◽  
Cathodic Protection ◽  
Defect Size ◽  
Protection System ◽  
Effective Parameters ◽  
Soil Resistivity ◽  
Fundamental Parameters ◽  
Shift Criterion ◽  
Cathodic Protection System

Linear anode-pipe arrangement cathodic protection system with a complete nonlinear cathode boundary condition is analyzed by finite element method numerical simulation to extract the effective parameters for both coated and uncoated pipe. The results show that defect size ratio, linear anode-to-pipe distance, and pipe diameter are fundamental parameters to design an effective cathodic protection system able to guarantee a proper current distribution. Soil resistivity has a significant effect on the current distribution of both coated and uncoated pipe. The results show that the 100 mV potential shift criterion for a single linear anode-pipe arrangement can be ineffective and a two anode system may be required.

scholarly journals Modeling of Cathodic Protection for pipe lines

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Naseer A. Alhabobi ◽  
Anas Th. Albayati
Keyword(s):  
Mathematical Model ◽  
Cathodic Protection ◽  
Power Supply ◽  
Protection System ◽  
Soil Resistivity ◽  
Factors Affecting ◽  
Impressed Current ◽  
Cathodic Protection System ◽  
Parameter Values ◽  
Impressed Current Cathodic Protection

Corrosion is an international problem with more structures and materials buried in the soil. The most common and applicable technique to overcome this problem is cathodic protection. In this work a Carbone steel pipe of length 100 cm is buried in a wooden box submerged by soil and Impressed Current Cathodic Protection system was applied using power supply and close circuit, several important factors has been studied, like Anode position (distance and depth), soil resistivity (wet and dry), condition the pipe (coated and un-coated), distribution of potential and currents along the pipe (cathode), the amount of current required to achieve cathodic protection. A mathematical model was developed to simulate the ranges of parameters and factors affecting Impressed Current Cathodic Protection (ICCP). Regression of this model to data and results yielded parameter values vary depending on the effect of the same factor.  

scholarly journals Optimization for the cathodic protection system based on numerical simulation

2020 ◽  
Vol 185 ◽  
pp. 02038
Author(s):  
Weiguo Zeng ◽  
Dongxiao Xu ◽  
Hao Wang ◽  
Yong Yang ◽  
Hongmei Wang
Keyword(s):  
Numerical Simulation ◽  
Cathodic Protection ◽  
Protection System ◽  
Corrosion Prevention ◽  
Gas Field ◽  
Important Method ◽  
Safety Production ◽  
Protection Area ◽  
Cathodic Protection System

Cathodic protection was one of important method for the corrosion prevention. With the expand of pipeline at Jingbian gas field, the cathodic protection system had been not qualified for the corrosion prevention of pipeline at Jingbian gas field. The results of survey for pipeline in 2018 years suggested that there were less-protection or over-protection for the corrosion prevention of pipeline. In this study, it was simulated by the COMSOL software to clear the regulation of current for pipeline in different cathodic protection area, and learn the overall situation of cathodic protection station in Jingbian gas field. Finally, optimizing the cathodic protection system for improving the effect by cathodic protection and ensuring the safety production.

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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