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Redundancy of Vital Systems for Merchant Ships

[+] Author Affiliations
Mitja Kožuh, Stojan Petelin, Marko Perkovič

University of Ljubljana

Paper No. IMECE2004-59725, pp. 89-94; 6 pages
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Engineering/Technology Management: Safety Engineering and Risk Analysis, Technology and Society, Engineering Business Management
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Safety Engineering and Risk Analysis Division, Technology and Society Division, and Management Division
  • ISBN: 0-7918-4720-9 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME


When we talk about redundancy we have to compare risks of different options that compete for the same final result and for this result we have to decide what our goal is. Most of the time everything is fine but a ship can experience an event that surpasses its abilities. Either propulsion is lost and the ship cannot control its behavior during a storm, resulting in lost lives or even the loss of the ship, or a polluted environment causes a loss. Most ships are not equipped with a redundant parallel propulsion system. The most common reason is that any redundancy is a cost which burdens the operating company. Even safety costs are not really defined since the compensation for the lost lives is negotiable and also depends on the skills of lawyers. Therefore only the business costs can be defined with relative accuracy.

Copyright © 2004 by ASME



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