Corrosion Potential Profile Simulation in a Tube under Cathodic Protection
| Autor: | Victor Martinez-Luaces, Mauricio Ohanian |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Engineering drawing
Engineering Article Subject business.industry Process Chemistry and Technology Boundary (topology) Mechanics Corrosion Cathodic protection Heat exchanger lcsh:TA401-492 General Materials Science lcsh:Materials of engineering and construction. Mechanics of materials Boundary value problem Polarization (electrochemistry) business Current density Voltage |
| Zdroj: | International Journal of Corrosion, Vol 2014 (2014) |
| ISSN: | 1687-9333 1687-9325 |
| Popis: | The potential distribution in tubes of a heat exchanger is simulated when applying cathodic polarization to its extremes. The comparison of two methods to achieve this goal is presented: a numeric solution based on boundary elements carried out with the commercial software Beasy-GID and a semianalytical method developed by the authors. The mathematical model, the simplifications considered, and the problem solving are shown. Since both approaches use polarization curves as a boundary condition, experimental polarization curves (voltage versus current density) were determined in the laboratory under flow conditions and cylindrical cell geometry. The results obtained suggest the impossibility of extending the protection along the whole tube length; therefore, other protection methods are considered. |
| Databáze: | OpenAIRE |
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