Efectos de la distancia interanódica y la geometría del cátodo, en la efectividad de los sistemas de protección catódica por ánodos de sacrificio en embarcaciones

Authors

  • Darío H. Ruedas Pacheco
  • Reinaldo Villalba

Keywords:

cathodic protection, anodic distribution, olarization, cathode, anode

Abstract

The present article relates determined results derived from the lab study, whose principal objective lies on determining the incidence of the distance between the anodes and the cathode geometry in the life cycle of cathodic protection systems. These investigations are headed towards generating the basic knowledge of the performance of the galvanic cathodic protection systems for ships, with the objective of supporting a software that takes into consideration the influence of all the variables and the current considerations of design.
The results prove that the life cycle of the cathodic protection system by sacrifice anodes largely depends on the inter anodic distance adopted in the routine of design and that there is an optimum distance which objectively orients the decision making at the moment of anode assembly on the hull of the ship. Likewise, the geometry of the substrate affects on the life cycle of the system and is interpretable as an amplifying factor of the exposed area which will be protected.

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References

American Society for Test and Materials (1998), “ASTM D-1141 Standard Practice for the Preparation of Substitute Ocean Water”. ASTM, International Publication.

American Society for Test and Materials (2006), “ASTM B 418 Type II Alloy Standard: Standard Specification for Cast and Wrought GalFuente vanic Zinc Anodes”, ASTM, International Publication.

Corporación para la Investigación de la Corrosión y Corporación de Ciencia y Tecnología para el Desarrollo Naval, Marítimo y Fluvial (2006). Proyecto de investigación “Optimización del sistema de protección catódica por ánodos de sacrificio para embarcaciones de hasta 3.600 toneladas que operan en la bahía de Cartagena”,

Piedecuesta, CIC.

Corporación para la Investigación de la Corrosión y Corporación de Ciencia y Tecnología para el Desarrollo Naval, Marítimo y Fluvial (2006). Proyecto de cofinanciación Colciencias: “Desarrollo de una herramienta computacional que permita predecir y simular el nivel de protección contra la corrosión en embarcaciones marítimas de hasta 3.600 toneladas, las cuales usan sistemas de protección catódica por ánodos de sacrificio”, Piedecuesta, CIC.

Det Norske Veritas (1993), “DNV RP B401 Cathodic Protection Design”, DNV, Oslo.

Military Specification (Revision K) MIL-A-18001 “Anodes, Sacrificial Zinc Alloy”, MIL, International Publication.

Military Specification (1992), MIL-A-24779 (SH) “Detail Specification Anodes, Sacrificial Aluminum Alloy”. MIL, International Publication.

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How to Cite

Ruedas Pacheco, D. H., & Villalba, R. (2009). Efectos de la distancia interanódica y la geometría del cátodo, en la efectividad de los sistemas de protección catódica por ánodos de sacrificio en embarcaciones. Ciencia Y tecnología De Buques, 2(4), 5–14. Retrieved from https://shipjournal.co/index.php/sst/article/view/16

Issue

Vol. 2 No. 4

Section

Scientific and Technological Research Articles

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