{"title":"Design Challenges for Large Arctic Crude Oil Tanker","authors":"Aleksandr V. Iyerusalimskiy, P. Noble","doi":"10.5957/icetech-2008-128","DOIUrl":"https://doi.org/10.5957/icetech-2008-128","url":null,"abstract":"The largest icebreaking tanker built so far, Vasily Dinkov was delivered by Samsung Heavy Industries shipyard to Russian ship-owner SOVCOMFLOT. The vessel was designed and built for the transport of crude oil from the Varandey offshore terminal in east-southern part of the Barents Sea to a transshipment location near Murmansk. The vessel is under long-term charter for NARYANMARNEFTEGAS (NMNG), a joint venture of LUKOIL and ConocoPhillips. The new ship was constructed strictly to the requirements, specification, and concept design provided by the charterer as a basis for final design, building contract, and time-charter agreement. That approach was driven by time constrain, challenges of the project, and uncertainty about experienced icebreaker builder shipyard availability. The ConocoPhillips-LUKOIL marine technical group led the efforts for the feasibility design study at the early vessel design stage and contributed arctic design expertise and oversight of the final design and construction.","PeriodicalId":415232,"journal":{"name":"Day 1 Sun, July 20, 2008","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131378720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Arctic Patrol Hovercraft: An Initial Feasibility Study","authors":"D. Dickins, Malcolm E. Cox, J. Thorleifson","doi":"10.5957/icetech-2008-115","DOIUrl":"https://doi.org/10.5957/icetech-2008-115","url":null,"abstract":"This study evaluates the feasibility of using air cushion vehicles (ACV’s) as year-round patrol craft in the Canadian Arctic, focusing on key areas along the Northwest Passage from the Beaufort Sea to Lancaster Sound. The study concludes that there is no fundamental technical limitation or operating constraint preventing hovercraft from serving year-round in a Canadian Arctic environment, as long as the design and specification re drawn up with specific attention to the expected marine and ice operating environments.","PeriodicalId":415232,"journal":{"name":"Day 1 Sun, July 20, 2008","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114893013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Resistance and Propulsion Tests of CCGS TERRY FOX in Ice - From Model Tests to Full Scale Correlation","authors":"Jungyong Wang, S. J. Jones","doi":"10.5957/icetech-2008-125","DOIUrl":"https://doi.org/10.5957/icetech-2008-125","url":null,"abstract":"The first resistance and propulsion tests of a Terry Fox model were carried out in 1988 at the Institute for Ocean Technology, IOT (formerly Institute of Marine Dynamics, IMD). More recent resistance and propulsion model tests were again conducted in 2007. This paper describes not only the correlation with full scale but also the reproducibility and quality of the test data and test method over 20 years. The model has been tested with three different hull-ice friction coefficients, 0.11, 0.045, and 0.005 and several different ice conditions. The empirical formula to predict the full-scale resistance is given based on the IOT’s standard analysis method.\u0000 Towed propulsion tests were carried out in ice and in open water using an overload method. During the full-scale tests conducted in 1990 by Fleet Technology Limited, the flexural strength of the ice was 150 kPa and the thickness was 1.55 m. It was quite soft but thick ice. Due to the thick ice, significant propeller ice interaction was reported, but unfortunately model tests were not done with corresponding full-scale ice thickness. Some of the other full-scale measurements (in 1986 by Arctec Canada Limited) had a snow cover, hummocks, and melt-pools which could affect the resistance value. These effects were not taken into account in the model tests.\u0000 The present paper shows the usefulness of a non-dimensional method to predict resistance with four components (breaking term, clearing term, buoyancy term and open water term). Overall resistance prediction is good, but the power prediction shows some discrepancies possibly due to propeller ice interaction. The model results from the 1988 to 2007 tests were consistent over the twenty years between the tests, and the prediction method for full-scale power is appropriate with a friction coefficient of about 0.05, as has been found before at IOT.","PeriodicalId":415232,"journal":{"name":"Day 1 Sun, July 20, 2008","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114383589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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