Wind-assisted Propulsion
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Wind-assisted Propulsion
Wind assisted propulsion is the practice of decreasing the fuel consumption of a merchant vessel through the use of sails or some other wind capture device. Sails used to be the primary means of propelling ships, but with the advent of the steam engine and the diesel engine, sails came to be used for recreational sailing only. In recent years with increasing fuel costs and an increased focus on reducing emissions, there has been increased interest in harnessing the power of the wind to propel commercial ships. A key barrier for the implementation of any decarbonisation technology and in particular of wind-assisted ones, is frequently discussed in the academia and the industry is the availability of capital. On the one hand, shipping lenders have been reducing their commitments overall while on the other hand, low-carbon newbuilds as well as retrofit projects entail higher-than-usual capital expenditure (CapEx). Therefore, research effort is directed towards the development of ...
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Merchant Vessel
A merchant ship, merchant vessel, trading vessel, or merchantman is a watercraft that transports cargo or carries passengers for hire. This is in contrast to pleasure craft, which are used for personal recreation, and naval ships, which are used for military purposes. They come in myriad sizes and shapes, from inflatable dive boats in Hawaii, to 5,000-passenger casino vessels on the Mississippi River, to tugboats plying New York Harbor, to oil tankers and container ships at major ports, to passenger-carrying submarines in the Caribbean. Many merchant ships operate under a " flag of convenience" from a country other than the home of the vessel's owners, such as Liberia and Panama, which have more favorable maritime laws than other countries. The Greek merchant marine is the largest in the world. Today, the Greek fleet accounts for some 16 per cent of the world's tonnage; this makes it currently the largest single international merchant fleet in the world, albeit not t ...
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Integrated Electric Propulsion
Integrated electric propulsion (IEP) or full electric propulsion (FEP) or integrated full electric propulsion (IFEP) is an arrangement of marine propulsion systems such that gas turbines or diesel generators or both generate three-phase electricity which is then used to power electric motors
turning either propellers or waterjet impellors. It is a modification of the

Internal Drive Propulsion
Internal drive propulsion or water-jet propulsion is a form of marine propulsion used in recreational boating. Like other forms of motorized boating, internal drive propulsion employs a motor that turns a propeller to move the boat forward. The primary difference between internal drive boats and external drive boats is that the propeller is enclosed inside the hull of an internal drive boat whereas the propeller is exposed outside the hull of a stern drive, V-drive or straight shaft drive boat. A conventional screw propeller accelerates a large volume of water by a small amount, similar to the way an airplane propeller accelerates a large volume of air by a small amount. An aircraft's jet engine, by contrast, accelerates a smaller volume of air by a large amount. Both methods yield thrust due to Newton's third law — every force gives rise to an equal and opposite force. In an internal drive boat, pumping a small volume of water and accelerating it by a large amount deliver ...
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Nuclear Marine Propulsion
Nuclear marine propulsion is propulsion of a ship or submarine with heat provided by a nuclear reactor. The power plant heats water to produce steam for a turbine used to turn the ship's propeller through a gearbox or through an electric generator and motor. Nuclear propulsion is used primarily within naval warships such as nuclear submarines and supercarriers. A small number of experimental civil nuclear ships have been built. Compared to oil- or coal-fuelled ships, nuclear propulsion offers the advantages of very long intervals of operation before refueling. All the fuel is contained within the nuclear reactor, so no cargo or supplies space is taken up by fuel, nor is space taken up by exhaust stacks or combustion air intakes. However, the low fuel cost is offset by high operating costs and investment in infrastructure, so nearly all nuclear-powered vessels are military. Power plants Basic operation of naval ship or submarine Most naval nuclear reactors are of the pressuriz ...
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Hydrogen-powered Ship
A hydrogen ship is a hydrogen fueled ship, power-assisted by an electric motor that gets its electricity from a fuel cell. Or uses hydrogen fuel in an internal combustion engine. History In 2000, the 22-person ''Hydra'' ship was demonstrated, and in 2003 the Duffy-Herreshoff watertaxi went into service. 2003 saw the debut of Yacht ''No. 1'', as well Hydroxy3000. The AUV DeepC and Yacht ''XV 1'' were shown in 2004. In 2005 the first example of the Type 212 submarine, which is powered underwater by fuel cells, went into service with the German navy. In 2006 the 12-person ''Xperiance'' was debuted, as well as the Zebotec. In 2007 both the 8-person Tuckerboot and the Canal boat ''Ross Barlow'' debuted, and in 2008 the 100-passenger Zemships project ''Alsterwasser'' went into service in Hamburg. Also, in 2009 the Nemo H2 and the Frauscher 600 Riviera HP went into service. In 2013 the Hydrogenesis Passenger Ferry project went into service. In February 2020 it was announc ...
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Wind Surf (ship)
MSY ''Wind Surf'' is a five-mast staysail schooner that is one of the largest sailing cruise ships in the world, with two electric propulsion motors powered by four diesel electric generating sets also. She can carry up to 342 passengers, in a total of 150 ocean-view staterooms, 18 ocean-view suites and 2 deluxe bridge suites, with a crew of 210. ''Wind Surf'' had been owned and operated by Club Med under the name ''Club '', and was later transferred to Windstar Cruises. In January 2022, during the COVID-19 pandemic that started in 2020, 48 crew members and 51 passengers of the 342-passenger ship tested positive for covid and were taken off the ship for quarantine in Barbados; later many other passengers tested positive and were unable to return home until they tested negative. History ''La Fayette'' was launched in 1989 at the , France, renamed ''Club Med 1'' on 14 January 1990. Her sister ship ''Club Med 2'' was launched in 1992 in the same shipyard. ''Club Med 1'' made her m ...
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MS Viking Grace
MS ''Viking Grace'' is a cruiseferry constructed at STX Europe Turku Shipyard, Finland for the Finland-based ferry company Viking Line. The ship was delivered to her owners on 10 January 2013, and entered service on 13 January 2013. She is the first large-scale passenger ferry to be powered by liquefied natural gas (LNG) as well as being fitted with a rotor sail. ''Viking Grace'' replaced ''MS Isabella'' (now known as ''MS Isabelle'') on the Turku-Långnäs-Stockholm route.Enkvist, Liisa: Ensimmäinen laiva korvaa Isabellan. '' Turun Sanomat'', 26 October 2010, 106th year, p. 12. Turku: TS-Yhtymä Oy. ''Viking Grace'' is planned to be twinned by ''MS Viking Glory'', which is currently under test runs. Viking Line and STX Finland made a contract of building the ship (shipyard project number NB 1376) on 25 October 2010, and the contract went into force on 22 December 2010. The contract price was about 240 million euro, and the ship was delivered in January 2013. The contract incl ...
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International Windship Association
International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The Three Degrees album), 1975 *''International'', 2018 album by L'Algérino Songs * The Internationale, the left-wing anthem * "International" (Chase & Status song), 2014 * "International", by Adventures in Stereo from ''Monomania'', 2000 * "International", by Brass Construction from ''Renegades'', 1984 * "International", by Thomas Leer from ''The Scale of Ten'', 1985 * "International", by Kevin Michael from ''International'' (Kevin Michael album), 2011 * "International", by McGuinness Flint from ''McGuinness Flint'', 1970 * "International", by Orchestral Manoeuvres in the Dark from '' Dazzle Ships'', 1983 * "International (Serious)", by Estelle from '' All of Me'', 2012 Politics * Political international, any transnational organization of ...
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Oceanbird
Oceanbird is a concept for wind-powered cargo vessels under development by Wallenius Marine. The concept aims to lower emissions by up to 90 percent and the design was developed in collaboration with KTH Royal Institute of Technology and Swedish maritime technology company SSPA. Financial backing for the development was provided by the Swedish Transport Agency. In 2021, Wallenius announced a partnership with Swedish heavy industry company Alfa Laval to further develop the concept's wingsail design. The concept features expandable wingsails that can rotate 360 degrees and tilt down if needed. The masts will measure for a total height above the waterline of . The rigging will be made from steel and composite materials and resemble airplane wings. An auxiliary engine will be used to navigate harbors and provide emergency power. While the design is meant to be usable for different types of ships and even retrofitted to existing vessels, the first vessel from the Oceanbird concept ...
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