Once delivered, the vessels will be used to transport LNG from the Yamal project in Northern Russia, breaking through ice up to two metres thick in arctic temperatures as low as -50 degrees, requiring dramatic variations in engine load.
The scope of supply includes 30 engines, including four 12-cylinder Wärtsilä 50DF engines and two 9-cylinder Wärtsilä 50DF engines per vessel, primarily running on gas. The engines are capable of producing 950/975 kW per cylinder.
"Altogether, Wärtsilä has been contracted within the past twelve months to supply 90 dual-fuel engines to fifteen of these Arc 7 ice-class LNG carriers for the Yamal project," said Lars Anderson, vp of Wärtsilä Ship Power. "This is a clear endorsement of the very high efficiency and reliability of the Wärtsilä machinery, which owners and shipyards around the world recognise. It is a pleasure to cooperate with DSME and the vessel owners in meeting the demands of arctic operations."
The Yamal LNG project, is expected to yield 16.5m tons of LNG per year by the end of 2017.
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