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S8G Reactor
The S8G reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships. The S8G designation stands for: * S = Submarine platform * 8 = Eighth generation core designed by the contractor * G = General Electric was the contracted designer History The S8G reactor was designed by General Electric for use on the s. The 220 MWth S8G reactor compartment for the Ohio submarines is in diameter, long and weighs 2,750 tons. Design This nuclear reactor utilizes natural circulation which is capable of operating at a significant fraction of full power without reactor coolant pumps. A land-based prototype of the reactor plant was built at Knolls Atomic Power Laboratory's Kesselring Site in West Milton, New York. The prototype was used for testing and crew training throughout the 1980s. In 1994, the core was replaced with an S6W reactor, designed for the new ''Seawolf''-class submarine. The prototype is equipped with an auto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Naval Reactor
United States naval reactors are nuclear reactors used by the United States Navy aboard certain ships to generate the steam used to produce Power (physics), power for Marine nuclear propulsion, propulsion, electric power, catapulting airplanes in aircraft carriers, and a few minor uses. Such naval nuclear reactors have a complete power plant associated with them. All commissioned U.S. Navy submarines and supercarriers built since 1975 are nuclear powered, with the last conventional carrier, , being decommissioned in May 2009. The U.S. Navy also had nine nuclear-powered cruisers with such reactors, but they have since been decommissioned also. Reactors are designed by a number of contractors, then developed and tested at one of several United States Department of Energy, Department of Energy-owned and prime contractor-operated facilities: Bettis Atomic Power Laboratory in West Mifflin, Pennsylvania and its associated Naval Reactors Facility in Idaho, and Knolls Atomic Power Labo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Circulation
Convection is single or multiphase fluid flow that occurs spontaneously through the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed. Convection may also take place in soft solids or mixtures where particles can flow. Convective flow may be transient (such as when a multiphase mixture of oil and water separates) or steady state (see convection cell). The convection may be due to gravitational, electromagnetic or fictitious body forces. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be identified by clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics. Convection is often categorised o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seawolf-class Submarine
The ''Seawolf'' class is a class of nuclear-powered, fast attack submarines (SSN) in service with the United States Navy. The class was the intended successor to the , and design work began in 1983. A fleet of 29 submarines was to be built over a ten-year period, but that was reduced to 12 submarines. The end of the Cold War and budget constraints led to the cancellation of any further additions to the fleet in 1995, leaving the ''Seawolf'' class limited to just three boats. This, in turn, led to the design of the smaller . The ''Seawolf'' class cost about $3 billion per unit ($3.5 billion for ), making it the most expensive United States Navy fast attack submarine and second most expensive submarine ever, after the French nuclear-powered ballistic missile submarines. Design The ''Seawolf'' design was intended to combat the threat of advanced Soviet ballistic missile submarines such as the , and attack submarines such as the in a deep-ocean environment. ''Seawolf' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S6W Reactor
The S6W reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships. The S6W designation stands for: * S, Submarine platform * 6, Sixth generation core designed by the contractor * W, Westinghouse was the contracted designer History This pressurized water reactor was prototyped in the land-based S8G plant at Knolls Atomic Power Laboratory Knolls Atomic Power Laboratory (KAPL) is an American research and development facility based in Niskayuna, New York and dedicated to the support of the U.S. Naval Nuclear Propulsion Program. KAPL was instituted in 1946 under a contract between ...'s Kesselring Site in West Milton, NY starting in March 1994. The three ships of the , , and submarines were built with S6W reactors. Design The S6W has a thermal power output of and a shaft power output of through 2 steam turbines. It is believed to be able to utilize natural circulation at a large fraction of its full powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milton (town), New York
Milton is a town in Saratoga County, New York, United States. The population was 18,800 at the 2020 census. Some believe that the town was named after the poet, John Milton, while other sources state that it is a shortening of "Mill-town" for the early mill activity. Milton is an interior town in the central part of the county. It is southwest of Saratoga Springs. History This region was part of the Kayaderossera patent of 1708. The town was first settled around 1772. The town of Milton was established in 1792 from part of the town of Ballston. In 1793, part of the town was taken to form part of the town of Greenfield. In 1807, part of Milton was lost when Ballston Spa became an incorporated village. In the mid-to-late-19th century, the Town of Milton was the site of numerous manufacturing concerns. The most famous was the paper mills of "Paper Bag King" George West, who invented a line of square-bottomed paper bags and sold them by the millions soon after the Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knolls Atomic Power Laboratory
Knolls Atomic Power Laboratory (KAPL) is an American research and development facility based in Niskayuna, New York and dedicated to the support of the U.S. Naval Nuclear Propulsion Program. KAPL was instituted in 1946 under a contract between General Electric and the United States government. In the 21st century, KAPL is a government-owned, contractor-operated laboratory for the U.S. Department of Energy. KAPL is responsible for the research, design, construction, operation, and maintenance of U.S. nuclear-powered warships. It also manages work on nuclear ships at numerous shipyards across the country. History On May 15, 1946, KAPL began with a contract between General Electric and the U.S. Government to conduct nuclear research and development, including the generation of electricity from nuclear energy. In 1950, the nuclear power plant project was converted to a Naval Nuclear Propulsion project. Several years later Knolls' work joined that of Bettis Atomic Power Laborato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pump
A pump is a device that moves fluids (liquids or gases), or sometimes Slurry, slurries, by mechanical action, typically converted from electrical energy into hydraulic or pneumatic energy. Mechanical pumps serve in a wide range of applications such as Water well pump, pumping water from wells, aquarium filtering, pond filtering and Water aeration, aeration, in the car industry for Water cooling, water-cooling and fuel injection, in the energy industry for Pumping (oil well), pumping oil and natural gas or for operating cooling towers and other components of heating, ventilation and air conditioning systems. In the medical industry, pumps are used for biochemical processes in developing and manufacturing medicine, and as artificial replacements for body parts, in particular the artificial heart and Penile implant, penile prosthesis. When a pump contains two or more pump mechanisms with fluid being directed to flow through them in series, it is called a ''multi-stage pump''. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coolant
A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator. While the term "coolant" is commonly used in automotive and HVAC applications, in industrial processing heat-transfer fluid is one technical term more often used in high temperature as well as low-temperature manufacturing applications. The term also covers cutting fluids. Industrial cutting fluid has broadly been classified as water-soluble coolant and neat cutting fluid. Water-soluble coolant is oil in water emulsion. It has varying oil content from nil oil (synthetic coolant). This coolant can either keep its phase and stay liquid or gaseous, or can undergo a phase transition, with the latent heat adding to the cooling efficiency. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Reactor
A nuclear reactor is a device used to initiate and control a Nuclear fission, fission nuclear chain reaction. They are used for Nuclear power, commercial electricity, nuclear marine propulsion, marine propulsion, Weapons-grade plutonium, weapons production and Research reactor, research. Fissile material, Fissile nuclei (primarily uranium-235 or plutonium-239) absorb single neutron, neutrons and split, releasing energy and multiple neutrons, which can induce further fission. Reactors stabilize this, regulating Neutron absorber, neutron absorbers and neutron moderator, moderators in the core. Fuel efficiency is exceptionally high; Enriched uranium#Low-enriched uranium (LEU), low-enriched uranium is 120,000 times more energy dense than coal. Heat from nuclear fission is passed to a working fluid Nuclear reactor#By coolant, coolant. In commercial reactors, this drives Turbine, turbines and electrical generator shafts. Some reactors are used for district heating, and isotopes, isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MWth
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776, which became fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one meter per second against a constant opposing force of one newton, the rate at which work is done is one watt. \mathrm. In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). \mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric
General Electric Company (GE) was an American Multinational corporation, multinational Conglomerate (company), conglomerate founded in 1892, incorporated in the New York (state), state of New York and headquartered in Boston. Over the years, the company had multiple divisions, including GE Aerospace, aerospace, GE Power, energy, GE HealthCare, healthcare, lighting, locomotives, appliances, and GE Capital, finance. In 2020, GE ranked among the Fortune 500, ''Fortune'' 500 as the 33rd largest firm in the United States by gross revenue. In 2023, the company was ranked 64th in the Forbes Global 2000, ''Forbes'' Global 2000. In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE—Irving Langmuir (1932) and Ivar Giaever (1973)—have been awarded the Nobel Prize. From 1986 until 2013, GE was the owner of the NBC television network through its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
