PREVENTION OF ATTACHMENT OF MARINE ORGANISMS ON PROPELLER BY ELECTROLYTIC CURRENT
Many marine organisms attach to the hull and propeller surface of anchored ships. This increases the frictional resistance of the propeller and lowers its rotational frequency. Anti-fouling hull coatings prevent the attachment of fouling organisms, however they contain poisonous compounds such as organic tin and cuprous oxides. Since marine organisms cannot attach themselves to a propeller during a voyage, a safe, easy and effective method to prevent attachment during anchorage is desirable. Some propeller coatings which do not contain poisonous compounds have been examined and developed. However, the coatings do not adhere perfectly. In a preliminary experiment, it was observed that marine organisms were attached everywhere on the test plate except the scratching part. The electrolytic current therefore is feasible to prevent the attachment of marine organisms to the propeller and the technique does not pollute the marine environment.
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Supplemental Notes:
- Marine Engng Soc Japan Bull, v 24 n 1, Feb 1996, p 39 [7 p, 9 ref, 5 tab, 4 fig]
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Authors:
- Tanaka, H
- Suzuki, H
- Publication Date: 1996
Language
- English
Subject/Index Terms
- TRT Terms: Antifouling coatings; Electric current; Propellers
- Old TRIS Terms: Antifouling systems
- Subject Areas: Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00727834
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Nov 4 1996 12:00AM