Four LNG newbuilds get Wartsila technology

  • Equipment

A series of four LNG carriers being built by the HudongZhongua Shipbuilding yard in China will feature Wärtsilä LNG reliquefaction plants and gas handling systems. 

The ships are owned by Bermuda-based Teekay Corporation, China LNG Shipping, CNOOC Energy Technology of China, and BW Gas of Norway. The contracts with Wärtsilä were issued by Hudong-Zhonghua Shipbuilding and were signed during the fourth quarter.

The reliquefaction plant will reliquefy 70% of the boil-off gas from the ships’ LNG cargo and return it to the cargo tanks, while the balance is fed by the gas handling system to the engines for propulsion purposes. The system is pre-fabricated in skid modules for easy onboard installation and hook-up. It can be stopped when the cargo pumps are in operation, thereby reducing the need for extra generator capacity, Wärtsilä said in a statement.

For both the LNG reliquefaction plant and gas handling system, Wärtsilä will provide engineering support, system responsibility and associated process guarantees.

The first of the 174,000 m3 LNG carriers is scheduled for delivery in September 2017, with two to follow in 2018 and the last ship in January 2019.

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Press Release; Image: Wärtsilä

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