A TECHNO-ECONOMIC APPROACH TO THE COMPARISON OF UNDERWATER COATINGS FOR NEW SHIPS

The ship designer has to select an engine power to meet the specified trial speed, as well as the service speed requirements. The size of the service power margin should reflect not only the average weather conditions over a typical route, but also deterioration in hull surface condition increasing resistance. The choice of underwater coating, particularly anti-fouling, is important in terms of minimising speed loss, being affected by drydocking intervals and cost. A spreadsheet model has been developed to permit a techno-economic comparison of alternative underwater coatings. Unscheduled ships like VLCCs with 'better' coatings have the benefit of higher speed at constant fuel consumption. An example shows a smaller power margin needed for a self-polishing type anti-fouling compared with a 'conventional' one.

  • Supplemental Notes:
    • PRADS 95, 6th Intl Symposium on Practical Design of Ships and Mobile Units; 17-22 Sept 1995; Seoul, Korea. Procs. Publ by Soc Naval Architects of Korea, ISBN 89-950016-2-3. Vol 2, p 2.1214 [14 p, 16 ref, 5 fig]
  • Authors:
    • Buxton, I L
    • Raptakis, G
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00727758
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM