Author(s): J. G. German; C. J. Klop
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Abstract: Ever larger and more powerful icebreakers are being designed and built by a number of nations around the world, and are involved in polar exploration and transport through ice-infested waters. This paper looks at the type of propulsion proposed for these vessels and discusses in detail the design process which devolved in the final selection of a 75,000 kW propulsion system for a triple screw Polar Icebreaker. Obviously, the type of propulsion system to be selected for a given vessel does not depend only upon vessel size and power requirements, but also very much on the operational and mission profiles. Prime examples of the operational requirements are the major design parameter are the icebreaking vessels at present being considered for use in the Canadian High Arctic and it is felt appropriate to discuss some power plants being considered for these vessels. Much has been said and written recently on the yet to come full scale commercial development of remote regions in the Canadian North and the necessity of preparing ourselves for the future by designing and building large, high powered icebreakers and icebreaking commercial vessels, be they tankers for oil or L. N. G., or bulkcarriers. In these studies and preliminary designs, major emphasis is placed upon the importance in any ship design of having a reliable and efficient propulsion plant. Reliable because these vessels must work alone in remote regions and efficient because fuel consumption and fuel carrying capacity of these high powered vessels must be closely watched.
Year: 1984