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List Of Small Nuclear Reactor Designs
Small modular reactors (SMR) are much smaller than the current nuclear reactors (300MWe or less) and have compact and scalable designs which propose to offer safety, construction and economic benefits, and offering potential for lower initial capital investment and scalability. Summary table The stated power refers to the capacity of one reactor unless specified otherwise. Reactor designs ACP100 In 2021, construction of the ACP100 was started at the Changjiang Nuclear Power Plant site in Hainan province. Previously, in July 2019 CNNC announced it would start building a demonstration ACP100 SMR by the end of the year. Design of the ACP100 started in 2010 and it became the first SMR project of its kind to be approved by the International Atomic Energy Agency in 2016. It is a fully integrated reactor module with an internal coolant system, with a two-year refuelling interval, producing 385MWt and about 125MWe. The 125MWe pressurised water reactor (PWR) is also ref ... [...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 ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Temperature Gas Cooled Reactor
A high-temperature gas-cooled reactor (HTGR), is a nuclear reactor that uses a graphite moderator with a once-through uranium fuel cycle. The HTGR is a type of high-temperature reactor (HTR) that can conceptually have an outlet temperature of . The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) or a " pebble-bed" core. The high temperatures enable applications such as process heat or hydrogen production via the thermochemical sulfur–iodine cycle. The HTR is the predecessor of the Very-high-temperature reactor (VHTR), one of the future Generation IV reactor-models, which initially would work with temperatures of 750 to 950 °C. Overview The HTGR is a type of high-temperature reactor that conceptually can reach high outlet temperatures (up to 750 °C). There are two main types of HTGRs: pebble bed reactors (PBR) and prismatic block reactors (PMR).The prismatic block reactor refers to a prismatic block core configuration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CAREM
Carem or Karem is a place mentioned in the Septuagint translation of the Hebrew Bible as being a town situated in the hill country of the tribe of Judah, while the Masoretic Text and Vulgate do not mention the name (see ). Identification According to the ''Catholic Encyclopedia'', Carem has been identified by some scholars with Beit HaKerem (Bethhaccerem), a town that is mentioned in the biblical Book of Jeremiah and Book of Nehemiah . It is most often associated with Ein Karem, a town currently included in the municipality of Jerusalem. From the twelfth century CE onward there are many Christian writers who claim that Carem/Ein Karem was the "city of Judah" in the "hill country" mentioned in , the home of Zechariah and Elizabeth, parents of John the Baptist, where Elizabeth received the visit of her cousin, the Virgin Mary. The tradition thus identifies Ein Karem as the birthplace of John the Baptist. Many Christians cite the existence of manuscripts as evidence in favour of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boiling Water Reactor
A boiling water reactor (BWR) is a type of light water nuclear reactor used for the generation of electrical power. It is a design different from a Soviet graphite-moderated RBMK. It is the second most common type of electricity-generating nuclear reactor after the pressurized water reactor (PWR), which is also a type of light water nuclear reactor. The main difference between a BWR and PWR is that in a BWR, the reactor core heats water, which turns to steam and then drives a steam turbine. In a PWR, the reactor core heats water, which does not boil. This hot water then exchanges heat with a lower pressure system, which turns water into steam that drives the turbine. The BWR was developed by the Argonne National Laboratory and General Electric (GE) in the mid-1950s. The main present manufacturer is GE Hitachi Nuclear Energy, which specializes in the design and construction of this type of reactor. Overview A boiling water reactor uses demineralized water as a coolant and neu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BWRX-300
The BWRX-300 is a design for a small modular nuclear reactor proposed by GE Hitachi Nuclear Energy (GEH). The BWRX-300 would feature 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 light water as a 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 simplicity and economics. Decay heat removal Immediately after a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomenergoprom
Atomenergoprom (Atomic Energy Power Corporation, AEP, russian: AO Атомэнергопром) is a 100% state-owned holding company that unifies the Russian civil nuclear industry. It is a part of the Rosatom State corporation. History Atomenergoprom was created by a Presidential Decree signed by Vladimir Putin on 27 April 2007, following the adoption of a new law by the Russian Parliament on 19 January 2007, creating one of the world's largest nuclear companies. On 7 July 2007, the corporate charter and board of directors were approved. Organization Atomenergoprom includes nuclear power plant operator Rosenergoatom, nuclear fuel producer and supplier TVEL, uranium trader Tekhsnabexport (Tenex), nuclear facilities constructor Atomenergomash, international nuclear construction and project management concern Atomstroyexport, and uranium mining company ARMZ Uranium Holding Co. (Atomredmetzoloto). Among the Unitary Enterprises corporatized in a transfer of shareholdings from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BREST (Reactor)
The BREST reactor is a Russian concept of lead-cooled fast reactor aiming to the standards of a generation IV reactor. Two designs are planned, the BREST-300 (300 MWe) and the BREST-1200 (1200 MWe). Main characteristics of the BREST reactor are passive safety and a closed fuel cycle. The reactor uses nitride uranium-plutonium fuel, is a breeder reactor and can burn long-term radioactive waste. Lead is chosen as a coolant for being high-boiling, radiation-resistant, low-activated and at atmospheric pressure. BREST-300 The construction of the BREST-300-OD in Seversk (near Tomsk) was approved in August 2016. The preparatory construction work commenced in May 2020. Construction started at . The first BREST-300 will be a demonstration unit, as forerunner to the BREST-1200. The combination of a heat-conducting nitride fuel and the properties of the lead coolant allow for complete plutonium breeding inside the core. This results in a small operating reactivity margin and enables pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korea Electric Power Corporation
Korea Electric Power Corporation, better known as KEPCO (Hangul: 켑코) or Hanjeon (Hangul: 한전), is the largest electric utility in South Korea, responsible for the generation, transmission and distribution of electricity and the development of electric power projects including those in nuclear power, wind power and coal. KEPCO, through its subsidiaries, is responsible for 93% of Korea's electricity generation as of 2011. The South Korean government (directly and indirectly) owns a 51.11% share of KEPCO. Together with its affiliates and subsidiaries, KEPCO has an installed capacity of 65,383 MW. On the 2011 Fortune Global 500 ranking of the world's largest companies, KEPCO was ranked 271. KEPCO is a member of the World Energy Council, the World Nuclear Association and the World Association of Nuclear Operators. As of August 2011, KEPCO possesses an A+ credit rating with Fitch Ratings, while Moody's has assigned KEPCO an A1 stable rating. Originally located in Samseong- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babcock & Wilcox
Babcock & Wilcox is an American renewable, environmental and thermal energy technologies and service provider that is active and has operations in many international markets across the globe with its headquarters in Akron, Ohio, USA. Historically, the company is best known for their steam boilers. Background The company was founded in 1867 in Providence, Rhode Island, by partners Stephen Wilcox and George Babcock to manufacture and market Wilcox's patented water-tube boiler. B&W's list of innovations and firsts include the world's first installed utility boiler (1881); manufacture of boilers to power New York City's first subway (1902); first pulverized coal power plant (1918); design and manufacture of components for , the world's first nuclear-powered submarine (1953–55); the first supercritical pressure coal-fired boiler (1957); design and supply of reactors for the first U.S. built nuclear-powered surface ship, (1961).''Steam/its generation and use'', 41st Edition The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B&W MPower
The B&W mPower was a proposed small modular reactor designed by Babcock & Wilcox, and to be built by Generation mPower LLC, a joint venture of Babcock & Wilcox and Bechtel. It was a Generation III+ integral pressurized water reactor (light water reactor) concept. In March 2017, Bechtel withdrew from the joint venture and the project was terminated. History The reactor was unveiled by Babcock & Wilcox in June 2009. In July 2010, Babcock & Wilcox announced a formal alliance with Bechtel called Generation mPower LLC. At the same time, Babcock & Wilcox announced that it would build a test facility for the mPower reactor design at the Center for Advanced Engineering and Research in Bedford County, Virginia. In April 2011, Babcock & Wilcox received a $5 million grant from thVirginia Tobacco IndemnificationanCommunity Revitalisation Commissionfor this test facility. In June 2011 Generation mPower signed a letter of intent with the Tennessee Valley Authority for constructing up to six r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OKB Gidropress
OKB Gidropress (russian: ОКБ Гидропресс) is a Russian state construction office which works on the design, analysis, development, and production of nuclear power plant reactors, most notably the VVER range. OKB stands for experimental design bureau (опытно-конструкторское бюро, opytno-konstruktorskoe bjuro). History The company was established by the decree of Council of People's Commissars of the USSR on January 28, 1946 by the order of the People’s Commissar of the USSR heavy engineering on February 1, 1946. Reactors A list of some reactors under her flagship or participation: #VVER and its variants # VKT-12SVBR-10 # |
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