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LNG Carrier
An LNG carrier is a tank ship designed for transporting liquefied natural gas (LNG). Overview The first oceangoing liquified natural gas tanker in the world was '' Methane Pioneer'', which entered service in 1959 with a carrying capacity of 5,500 cubic metres (190,000 cu ft). LNG carriers of increasing size have been built since then, leading to the fleet of today, where giant Q-Max LNG ships sail worldwide that can each carry up to . A boom in U.S. natural gas production was enabled by hydraulic fracturing ("fracking"), creating large growth in natural gas production from 2010. The first U.S. LNG export facility was completed in 2016, with more following. The increasing supply of natural gas in the U.S. and export facilities expanded the demand for LNG carriers, to transport LNG around the world. The 2022 Russian invasion of Ukraine dramatically increased the demand for LNG shipping worldwide. U.S. shipments to Europe more than doubled in 2022, to 2.7 trillion cubic fee ...
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LNG Carrier DSME
Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4, with some mixture of ethane, C2H6) that has been cooled to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state at standard temperature and pressure. LNG is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately ; maximum transport pressure is set at around (gauge pressure), which is about 0.25 times atmospheric pressure at sea level. The gas extracted from underground hydrocarbon deposits contains a varying mix of hydrocarbon components, which u ...
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Gaztransport & Technigaz
Gaztransport & Technigaz SA is a French multinational naval engineering company with headquarters in Saint-Rémy-lès-Chevreuse, France. Trading as the GTT Group, the company is an engineering organization specializing in membrane containment systems dedicated to the transport and storage of liquefied gas worldwide. GTT has developed and patented multiple solutions for the liquefied gas industry, in particular for Liquefied Natural Gas (LNG). The company is the sole supplier of maritime containment tanks for LNG. The current company was established through a merger between rival companies Gaztransport SA and Technigaz SA in 1994. On the 27 February 2014 the GTT Group was listed on the Euronext Paris stock exchange. History In the 1950s, European companies were looking for solutions to transport Algerian gas from the Sahara to Europe. The idea of a North African pipeline was scrapped due to regional instability at the time and this led to the first boom in the shipping of ga ...
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Flare Stack
A gas flare, alternatively known as a flare stack, flare boom, ground flare, or flare pit, is a gas combustion device used in places such as petroleum refineries, chemical plants and natural gas processing plants, oil or gas extraction sites having oil wells, gas wells, offshore oil and gas rigs and landfills. In industrial plants, flare stacks are primarily used for burning off flammable gas released by safety valves during unplanned overpressuring of plant equipment. (See Chapter 11, ''Flare Stack Plume Rise''). During plant or partial plant startups and shutdowns, they are also often used for the planned combustion of gases over relatively short periods. At oil and gas extraction sites, gas flares are similarly used for a variety of startup, maintenance, testing, safety, and emergency purposes. In a practice known as production flaring, they may also be used to dispose of large amounts of unwanted associated petroleum gas, possibly throughout the life of an oil well. ...
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Cofferdam
A cofferdam is an enclosure built within a body of water to allow the enclosed area to be pumped out or drained. This pumping creates a dry working environment so that the work can be carried out safely. Cofferdams are commonly used for construction or repair of permanent dams, oil platforms, bridge piers, etc., built within water. These cofferdams are usually welded steel structures, with components consisting of Larssen sheet piling, sheet piles, Wale (ship part), wales, and cross timber framing, braces. Such structures are usually dismantled after the construction work is completed. The origin of the word comes from ''coffer'' (originally from Latin meaning 'basket') and ''dam'' from Proto-Germanic meaning 'barrier across a stream of water to obstruct its flow and raise its level'). #Naval architecture, The term is also used in naval architecture, to refer to a space between two watertight bulkheads or decks within a ship. Uses For dam construction, two cofferdams ar ...
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Ballast Tank
A ballast tank is a Compartment (ship), compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct Trim (vessel), trim or Angle of list, list, to provide a more even load distribution along the hull to reduce structural Hogging and sagging, hogging or sagging stresses, or to increase Draft (hull), draft, as in a semi-submersible vessel or platform, or a SWATH, to improve seakeeping. Using water in a tank provides easier weight adjustment than the stone or iron ballast used in older vessels, and makes it easy for the crew to reduce a vessel's Draft (hull), draft when it enters shallower water, by temporarily pumping out ballast. Airships use ballast tanks mainly to control buoyancy and correct trim. History The concept of ballast tanks, inspired by nature, can be seen in aquatic life forms like blowfish and the argonaut octopus, ...
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STX Offshore & Shipbuilding
K Shipbuilding Co., Ltd. (), formerly STX Offshore & Shipbuilding, is a South Korean shipbuilding company. K Shipbuilding was once the world's fourth-largest shipbuilder but entered a creditor-led workout program in 2013. It was delisted in 2014 and went into court receivership in 2016 and 2017. In 2021, a consortium led by United Asset Management Company (UAMCO) and KH Investment (KHI), purchased STX Offshoring & Shipbuilding for KRW 250 billion (US$ 220 million) from the creditor, including Korea Development Bank Korea Development Bank (KDB Bank) is a South Korean state-owned development bank which aims to encourage the industrial development of South Korea. It was founded in 1954 in accordance with The Korea Development Bank Act to finance and manage .... STX O&S was rebranded as K Shipbuilding after the ownership change. See also * STX Corporation * STX Europe ** STX Finland ** STX France References External links * {{DEFAULTSORT:Stx Offshore and Shipbuildi ...
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Hanjin Heavy Industries And Construction
HJ Shipbuilding & Construction Company, Ltd. (), formerly Korea Shipbuilding & Engineering Corporation () and Hanjin Heavy Industries & Construction Co. Ltd. (), is a South Korean-based multinational shipbuilding company, founded in 1937 as Chosun Heavy Industries Co., Ltd. (). Scandals 7 July, Thousands of protesters clashed with the police in a demonstration against layoffs in Yeong-do, Busan, and Police fired water cannons with diluted tear-water solution on the crowds after warning the crowds to disperse on the streets. In late September, 2020, the Korea Development Bank (KDB), the main creditor and largest shareholder, announced it would sell all or part of its stake in HHIC. KDB owns 83.45 percent of shares in HHIC. On December 14, 2020, KDB announced that Dongbu Construction, Keithton Partners, and SM Merchant Marine are bidding to acquire HHIC. In July 2021, the company announced that it had completed the second ship of the Dokdo-class amphibious assault ship ...
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