Hyundai Heavy Industries Co., Ltd. (HHI), the world’s biggest shipbuilder and a marine engine manufacturer, announced today that it independently developed HHI Gas Management System re-liquefying boil off gas (BOG) from a membrane LNG containment tank to use it as fuel for LNG carriers.

The newly developed gas treatment system, composed of an ME-GI engine, a BOG high-pressure compressor, a BOG re-liquefaction system, an LNG fuel gas supply system (FGSS) and Hyundai integrated gas supply system (Hi-GAS), can re-liquefy 100 percent of the BOG and re-store it in the LNG tank which can later be used as the ship’s fuel, whereas the conventional systems can only re-liquefy BOG partially.

With the alternative fuel consumption, the LNG carrier equipped with this system can save up to 50 percent of the fuel cost in comparison with the standard vessel using heavy fuel oil (HFO) or marine gas oil (MGO), and produce 92, 80 and 23 percent less emissions of SOx, NOx and CO2, respectively.

Equipped with this new gas treatment system, the two 176,000 m³ LNG carriers HHI is building for Knutsen, Norway are scheduled to be delivered in 2016.

About Hyundai Heavy Industries

Hyundai Heavy Industries (HHI), founded by the late Chung Ju-yung on March 23, 1972 wrote the first chapter of its shipbuilding history in June, 1974 by completing construction of the world's largest shipyard and two 260,000-DWT VLCCs all at the same time. A decade after its first delivery, the Hyundai Shipyard topped 10 million deadweight tons in aggregate ship production, and has maintained the leading position in the world shipbuilding market ever since. Hyundai Shipyard's drive has mirrored the growth of modern Korean heavy industry, and our success has allowed us to expand into other heavy industry areas, ultimately leading to the formation of Hyundai Heavy Industries, an integrated heavy industry company.