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Hull Forms for Icebreaking Tankers

[+] Author Affiliations
Hyun-Soo Kim, Mun-Keun Ha, Dang Ahn

Samsung Heavy Industries, Koje, Korea

David Molyneux

National Research Council Canada, Canada

Ho Hwan Chun

Pusan National University, Pusan, Korea

Paper No. OMAE2004-51081, pp. 895-901; 7 pages
doi:10.1115/OMAE2004-51081
From:
  • ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering
  • 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 3
  • Vancouver, British Columbia, Canada, June 20–25, 2004
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3745-9 | eISBN: 0-7918-3738-6
  • Copyright © 2004 by ASME

abstract

The optimum design for an icebreaking tanker will depend on the trade route and the cargo delivery requirements. For example, the hull shape of a ship that spends almost all of its time operating in heavy ice can be optimized for low speed icebreaking conditions. In contrast, a ship that spends a small portion of its time in light ice that has been previously broken and the rest of its time in open water can be optimized for different requirements. The challenge for the designer is complicated by the observation that many ship design features that enhance powering performance in ice are detrimental to open water performance. This paper presents predictions of ship resistance in pack ice, level ice and open water for four tanker designs, which include a conventional hull with no modification for ice at all and three designs proposed for operation in Arctic ice conditions. The predictions of ship performance are based on model experiments carried out in Canada and Korea. The resistance of the four hulls in open water, two concentrations of pack ice and two level ice thicknesses are compared and discussed. Information of this sort is essential for developing the optimum ship design for a particular shipping route, given known profiles of open water, pack ice and level ice.

Copyright © 2004 by ASME
Topics: Hull , Tankers

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