Daewoo shipyard applies new technologies to deliver environmentally friendly tank shuttles on time

[Courtesy of DSME]

SEOUL — Daewoo Shipbuilding & Marine Engineering has delivered two eco-friendly shuttle tankers to its Norwegian customer by applying new technologies that have helped the shipbuilder secure enough time to complete construction of expensive vessels on time. The vessels are equipped with a dual propulsion system capable of using liquefied natural gas (LNG) and liquefied petroleum gas (LPG) as fuel.

In February 2020, Daewoo Shipbuilding & Marine Engineering (DSME) secured an order from Knutsen NYK Offshore Tankers AS of Norway to build two 124,000 deadweight ton (DWT) shuttle tankers by August 2022. A Shuttle tanker is a vessel designed to transport oil from an offshore oilfield as an alternative to building pipelines. It is equipped with unloading equipment compatible with the oil field concerned.

DSME said it managed to refuel LNG by tank truck without traveling to an LNG storage base. Bunkering is the supply of fuel for use by ships and includes the onboard logistics of loading fuel and distributing it among available bunker tanks. “The on-time delivery of two difficult-to-build tanker shuttles proves the competitiveness of our production,” an unnamed DSME official said in a Sept. 5 statement.

Safety has been enhanced with a dynamic positioning system that can precisely control the center of the vessel within the desired range. Other new technologies include a bow loading system, which can prevent spill pollution accidents when loading and unloading crude oil at sea, and a volatile organic compound (VOC) recovery system. VOCs can be compressed, stored and used as fuel for ships, improving energy efficiency and meeting environmental regulations.

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