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Modelling and simulation of cathodic protection using magnesium sacrificial anode for steel Bent-Y-Pipe in seawater environment |
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| รหัสดีโอไอ | |
| Creator | 1. Syed A. R. Gardezi 2. Naveed Husnain |
| Title | Modelling and simulation of cathodic protection using magnesium sacrificial anode for steel Bent-Y-Pipe in seawater environment |
| Contributor | Syed M. A. Bukhari, Rauf Ahmad, Muhammad F. Zaman, Rashida Qurashi, Nosheen Baloch |
| Publisher | Asia-Pacific Journal of Science and Technology |
| Publication Year | 2568 |
| Journal Title | Asia-Pacific Journal of Science and Technology |
| Journal Vol. | 30 |
| Journal No. | 1 |
| Page no. | 10 (9 pages) |
| Keyword | Corrosion potential, Sacrificial anodes, Cathodic protection, COMSOL Multiphysics, CP modeling, Y pipes |
| URL Website | https://so01.tci-thaijo.org/index.php/APST/ |
| Website title | https://so01.tci-thaijo.org/index.php/APST/article/view/273754 |
| ISSN | 2539-6293 |
| Abstract | Pipelines under the sea are at great risk of corrosion due to highly conductive seawater acting as a strong electrolyte. Current study is aimed to resolve this issue of corrosion of pipes in seawater. This computational study exhibits the modeling and simulation of corrosion protection of a bent y-pipe using the sacrificial anode cathodic protection method. Steel is selected as pipe material and the pipe is studied under seawater conditions. A high-potential cylindrical Magnesium anode is selected to study its effect on corrosion prevention of the Y-pipe. The size of the anode is varied to study its effect on corrosion protection. COMSOL Multiphysics is used for the computational study of cathodic protection. The results indicated that cathodic protection can be a good choice for the protection of pipelines under the sea. However, a proper design and size of the anode must be incorporated for effective corrosion protection. Decreasing the radius of the cylindrical anode reduced the protection of the Y pipe as 0.2 mm radius anode exhibits -1.471 V pipe potential vs Ag/AgCl which is -1.498 V for anode size of 15 mm. Areas having bends tend to have more corrosion potential due to stress concentration and are at a greater risk of corrosion. Moreover, the model also indicated that apart from cathodic protection, corrosion inhibitors are also required inside the pipelines to prevent internal corrosion. |
