seatec - Finnish marine technology review 1/2012 | Page 49

Yamal LNG Aker Arctic’s next challenge Advanced ice model testing facilities and decades of double-acting design. When double-acting vessels operate astern, experience give Aker Arctic Technology a very good the milling action of the propeller helps cut a path for the ship understanding of the problems involved in designing ships capable of navigating in ice and breaking through the ice, and the water flow automatically flushes the hull, easing the ship’s progress. This makes it possible to make “green” icebreaking with close to 50% less energy and fuel con- through it. Unique technologies developed by the sumption compared to traditional methods – and without ice- company, such as double-acting vessels, lead the field. breaker assistance. The company has over 40 years of experience in developing ships for efficient operation in ice, and has recently achieved remarkable new references in opening up new trades and solutions for Arctic operations. The latest fruits of AARC ’s intensive product development programme have been reflected in a number of contracts for the design of a new generation of multipurpose and ice management icebreakers. Today Aker Arctic is working in close co-operation with Novatek’s subsidiary OAO Yamal LNG in their FEED for a natural gas production project in Sabetta in the Northern P od drives were central to the development of the double- Yamal peninsula. Extensive development and model testing has acting principle that allows vessels to proceed ahead in thin- already proven that large 170.000 cu.m size gas carriers can be ner ice and astern in heavier ice. The first of such cargo vessels, used for regular transports in the challenging ice conditions with the Tempera and Mastera Aframax-class tankers, delivered from thicknesses regularly up to two metres. The ships are expected Japan to Neste Oil in 2002 and 2003, feature pod drives and a to enter service by 2016. seatec 1/2012 47