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GE Hitachi Nuclear Energy
GE Hitachi Nuclear Energy (GEH) is a provider of advanced reactors and nuclear services. It is headquartered in Wilmington, North Carolina, United States. Established in June 2007, GEH is a nuclear alliance created by General Electric and Hitachi. In Japan, the alliance is Hitachi-GE Nuclear Energy. In November 2015, Jay Wileman was appointed CEO. History In 1955, the Atomic Power Equipment Department was established by GE. Two years later, in 1957: GE's first privately financed nuclear power reactor provides electricity for commercial use in Vallecitos, California. Additionally, in 1960, GE made and contributed to the Dresden Nuclear Power Station in Chicago. In the 1960s, it got involved in constructing and building the Boiling water reactor (BWR). The research into the project continued in the next 50 years resulting in production of 6 different BWR generations. In 1997, the GE-Hitachi U.S. Advanced boiling water reactor (ABWR) design was certified as a final design in fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economic Simplified Boiling Water Reactor
The Economic Simplified Boiling Water Reactor (ESBWR) is a passively safe generation III+ reactor design derived from its predecessor, the Simplified Boiling Water Reactor (SBWR) and from the Advanced Boiling Water Reactor (ABWR). All are designs by GE Hitachi Nuclear Energy (GEH), and are based on previous Boiling Water Reactor designs. Passive safety system The passive nuclear safety systems in an ESBWR operate without using any pumps, which creates increased design safety, integrity, and reliability, while simultaneously reducing overall reactor cost. It also uses natural circulation to drive coolant flow within the reactor pressure vessel (RPV); this results in fewer systems to maintain, and precludes significant BWR casualties such as recirculation line breaks. There are no circulation pumps or associated piping, power supplies, heat exchangers, instrumentation, or controls needed for these systems. ESBWR's passive safety systems include a combination of three system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morris Operation
The Morris Operation in Grundy County, Illinois, United States, is the location of the only permanent (the rest are temporary) ''de facto'' high-level radioactive waste storage site in the United States and holds 772 tons of spent nuclear fuel. It is owned by GE Hitachi Nuclear Energy and located near the city of Morris. The site is located immediately southwest of Dresden Generating Station. Spent nuclear fuel assemblies are stored at this away-from-reactor, Independent Spent Fuel Storage Installation (ISFSI) in a spent fuel storage pool.Congressional Research Service"Spent Nuclear Fuel Storage Locations and Inventory" ''Anthony Andrews'', December 21, 2004 The storage basins at the Morris Operation store spent high-level radioactive waste from Connecticut Yankee Nuclear Power Plant, Cooper Nuclear Station, Dresden Generating Station, Monticello Nuclear Generating Plant, and San Onofre Nuclear Generating Station The San Onofre Nuclear Generating Station (SONGS) is a permanently ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Modular Reactor
Small modular reactors (SMRs) are a proposed class of nuclear fission reactors, smaller than conventional nuclear reactors, which can be built in one location (such as a factory), then shipped, commissioned, and operated at a separate site. The term SMR refers to the size, capacity and modular construction only, not to the reactor type and the nuclear process which is applied. Designs range from scaled down versions of existing designs to generation IV designs. Both thermal-neutron reactors and fast-neutron reactors have been proposed, along with molten salt and gas cooled reactor models. SMRs are typically anticipated to have an electrical power output of less than 300 MWe (electric) or less than 1000 MWth (thermal). Many SMR proposals rely on a manufacturing-centric model, requiring many deployments to secure economies of unit production large enough to achieve economic viability. Some SMR designs, typically those using Generation IV technologies, aim to secure additional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressurized Water Reactor
A pressurized water reactor (PWR) is a type of light-water nuclear reactor. PWRs constitute the large majority of the world's nuclear power plants (with notable exceptions being the UK, Japan and Canada). In a PWR, the primary coolant (water) is pumped under high pressure to the reactor core where it is heated by the energy released by the fission of atoms. The heated, high pressure water then flows to a steam generator, where it transfers its thermal energy to lower pressure water of a secondary system where steam is generated. The steam then drives turbines, which spin an electric generator. In contrast to a boiling water reactor (BWR), pressure in the primary coolant loop prevents the water from boiling within the reactor. All light-water reactors use ordinary water as both coolant and neutron moderator. Most use anywhere from two to four vertically mounted steam generators; VVER reactors use horizontal steam generators. PWRs were originally designed to serve as nuclea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
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 after 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. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre 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 cir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holtec International
Holtec International is a supplier of equipment and systems for the energy industry founded in Mount Laurel, New Jersey and based in Jupiter, Florida, United States. It specializes in the design and manufacture of parts for nuclear reactors. The company sells equipment to manage spent nuclear fuel from nuclear reactors. In July 2014, the New Jersey Economic Development Authority awarded Holtec International a $260 million tax incentive to expand operations at the Port of Camden. Those breaks have come under scrutiny. Holtec makes storage casks used for spent nuclear fuel. It intends to send spent fuel to a site in New Mexico, but has met with resistance. Holtec is scheduled to purchase Indian Point Energy Center from Entergy and decommission it starting in 2021. SMR-160 The Holtec Inherently Safe Modular Underground Reactor SMR-160 is a design of a 160 MWe pressurized water reactor (PWR) small modular reactor. In February 2018, GE Hitachi Nuclear Energy agreed to colla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TerraPower
TerraPower is an American nuclear reactor design and development engineering company headquartered in Bellevue, Washington. TerraPower is developing a class of nuclear fast reactors termed traveling wave reactors (TWR). TWR places a small core of enriched fuel in the center of a much larger mass of non-fissile material, in this case depleted uranium. Neutrons from fission in the core "breeds" new fissile material in the surrounding mass, producing Plutonium-239. Over time, enough fuel is bred in the area surrounding the core that it can undergo fission, sending neutrons further into the mass and continuing the process while the original core expires. Over a period of decades, the reaction moves from the core of the reactor to the outside, thus "travelling wave". In September 2015, TerraPower signed an agreement with state-owned China National Nuclear Corporation to build a prototype 600 MWe reactor unit at Xiapu in Fujian province, China, from 2018 to 2025. Commercial power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PRISM (reactor)
PRISM (Power Reactor Innovative Small Module, sometimes S-PRISM from SuperPRISM) is a nuclear power plant design by GE Hitachi Nuclear Energy (GEH). Design The S-PRISM represents GEH's Generation IV reactor solution to closing the nuclear fuel cycle and is also part of its Advanced Recycling Center (ARC) proposition to U.S. Congress to deal with nuclear waste. S-PRISM is a commercial implementation of the Integral Fast Reactor developed by Argonne National Laboratory between 1984 and 1994. It is a sodium-cooled fast breeder reactor, based on the Experimental Breeder Reactor II (EBR-II) design, scaled up by a factor of ten. The design utilizes reactor modules, each having a power output of 311 MWe, to enable factory fabrication at low cost. In an identical fashion to the EBR-II that it is based on, the reactor would transition to a much lower power level whenever temperatures rise significantly, moreover the reactor vessel modules are pool type, as opposed to loop typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABWR
The advanced boiling water reactor (ABWR) is a Generation III boiling water reactor. The ABWR is currently offered by GE Hitachi Nuclear Energy (GEH) and Toshiba. The ABWR generates electrical power by using steam to power a turbine connected to a generator; the steam is boiled from water using heat generated by fission reactions within nuclear fuel. Kashiwazaki-Kariwa unit 6 is considered the first Generation III reactor in the world. Boiling water reactors (BWRs) are the second most common form of light water reactor with a direct cycle design that uses fewer large steam supply components than the pressurized water reactor (PWR), which employs an indirect cycle. The ABWR is the present state of the art in boiling water reactors, and is the first Generation III reactor design to be fully built, with several reactors complete and operating. The first reactors were built on time and under budget in Japan, with others under construction there and in Taiwan. ABWRs were on ord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BWRX-300
The BWRX-300 is a design for a small modular reactor, small modular nuclear reactor proposed by GE Hitachi Nuclear Energy (GEH). The BWRX-300 would feature Passive nuclear safety, passive safety, in that neither external power nor operator action would be required to maintain a safe state, even in extreme circumstances. Technology The BWRX-300 is an evolution of an earlier GE Hitachi reactor design, the Economic Simplified Boiling Water Reactor, but individually smaller. Boiling water reactors are tried and tested nuclear technology that use ordinary Water, light water as a coolant, nuclear reactor coolant. Like most boiling water reactors, the BWRX-300 will use low pressure water to remove heat from the core. A distinct feature of this reactor design is that water is circulated within the core by natural circulation. This is in contrast to most nuclear reactors which require electrical pumps to provide active cooling of the fuel. This system has advantages in terms of both simpli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Office For Nuclear Regulation
The Office for Nuclear Regulation (ONR) is the regulator for the nuclear industry in the United Kingdom. HSE, accessed 3 April 2011 It is an independent whose costs are met by charging fees to the nuclear industry. The ONR reports to the , although it also worked closely with the now-defunct |
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