scholarly journals Impact of the soil resistivity on IR drop when applying a cathodic protection system with galvanic anodes on PCCP

2014 ◽  
Author(s):  
A. Mujezinović ◽  
A. Muharemović
Keyword(s):  
Cathodic Protection ◽  
Protection System ◽  
Soil Resistivity ◽  
Ir Drop ◽  
Cathodic Protection System

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 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

Operation and maintenance of Impressed Current Cathodic Protection systems on concrete civil structures

2018 ◽  
Author(s):  
Jacob Brink Jansson ◽  
Ruth Sørensen ◽  
Kirsten Riis
Keyword(s):  
Service Life ◽  
Cathodic Protection ◽  
Protection System ◽  
Civil Structures ◽  
Correct Operation ◽  
Operation And Maintenance ◽  
Number Of Factors ◽  
Protection Systems ◽  
Cathodic Protection System

Cathodic protection is a very well-known method of preventing or stopping reinforcement corrosion and thereby extending the service life of reinforced concrete civil structures. However, a number of factors, which among others are design, materials and components, installation methods, quality of workmanship, and operation and maintenance of the cathodic protection system, have influence on the functionality and effectivity of the cathodic protection system. The optimum design that fulfils the Client''s requirements to cost, traffic disruption, service life, etc. shall be determined in accordance with the structure layout and the ability of the Client''s organisation to conduct operation and maintenance. It is critical to ensure that all components are installed properly to achieve the expected service life of the system. Regular and correct operation and maintenance is also crucial to ensure the functionality and effectivity system.

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