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Rolls-Royce SMR
The Rolls-Royce SMR, also known as the UK SMR, is a small modular reactor (SMR) being developed by the Rolls-Royce (RR) company in the United Kingdom. The company has been given financial support by the UK Government to develop its design. It is estimated that the 470MWe units will cost around £1.8billion once in full production, compared with £22billion for a full-sized nuclear power station such as the planned 3,300MWe Sizewell C. Construction time and site size needed will also be lower. History RR began design work on the SMR with a team of about 150 people, with decisions made near the start of the project to use light water as both coolant and moderator. In 2016, it was reported that the UK Government was assessing Welsh SMR sites - including the former Trawsfynydd nuclear power station - and on the site of former nuclear or coal-fired power stations in Northern England. Existing nuclear sites including Bradwell, Hartlepool, Heysham, Oldbury, Sizewell, Sellafield ... [...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] |
Wylfa Nuclear Power Station
Wylfa nuclear power station ( cy, Atomfa'r Wylfa) is a Magnox nuclear power station undergoing decommissioning. Wylfa is situated west of Cemaes Bay on the island of Anglesey, off the northwestern coast of Wales. Construction of the two 490MW nuclear reactors, known as Reactor 1 and Reactor 2, began in 1963. They became operational in 1971. Wylfa was located on the coast because seawater was used as a coolant. In 2012, Reactor 2 was shut down. Reactor 1 was switched off on 30 December 2015, ending 44 years of operation at the site. Wylfa Newydd (literally New Wylfa) was a proposed new nuclear station on a site adjacent to the old plant. An application to build two advanced boiling water reactors was submitted by Horizon Nuclear Power to the Office of Nuclear Regulation on 4 April 2017. , parent company Hitachi has withdrawn from the project. In 2022, the UK parliament expressed interests about the construction of a possible set of two EPR reactors on the site. History Wylfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Sunday Telegraph
''The Sunday Telegraph'' is a British broadsheet newspaper, founded in February 1961 and published by the Telegraph Media Group, a division of Press Holdings. It is the sister paper of ''The Daily Telegraph ''The Daily Telegraph'', known online and elsewhere as ''The Telegraph'', is a national British daily broadsheet newspaper published in London by Telegraph Media Group and distributed across the United Kingdom and internationally. It was fo ...'', also published by the Telegraph Media Group. ''The Sunday Telegraph'' was originally a separate operation with a different editorial staff, but since 2013 the ''Telegraph'' has been a seven-day operation. Digital edition A digital only Christmas edition will be free on Christmas Day in 2022 like in 2005, 2011 and 2016. See also * References External links * 1961 establishments in England Publications established in 1961 Sunday newspapers published in the United Kingdom Telegraph Media Group {{UK-new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-Battery
U-battery is a micro–small modular reactor design of a nuclear reactor. History The design for U-Battery was created at Delft University of Technology in the Netherlands and Manchester University in the United Kingdom basing it on high temperature reactor (HTR) technology which was already available in Europe. A consortium was formed to develop the product, participants including consortium that includes Urenco, Kinectrics and Jacobs Solutions. Finance has been supported by grants from the UK government's Advanced Modular Reactor Feasibility and Development project, being selected for phase two in July 2020. Each reactor is targeted to cost £50m. The design is for a 10MWt / 4MWe micro-small modular reactor. The design is graphite-moderated, helium-cooled and based on high temperature reactor (HTR) concepts some of which were pioneered from the Dragon reactor, while the fuel block is based on the earlier Fort St. Vrain reactor. The target fuel is TRISO with 1720% enriched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Power In The United Kingdom
Nuclear power in the United Kingdom generated 16.1% of the country's electricity in 2020. , the UK has 9 operational nuclear reactors at five locations (8 advanced gas-cooled reactors (AGR) and one pressurised water reactor (PWR)), producing 5.9GWe. It also has nuclear reprocessing plants at Sellafield and the Tails Management Facility (TMF) operated by Urenco in Capenhurst. The United Kingdom established the world's first civil nuclear programme, opening a nuclear power station, Calder Hall at Windscale, England, in 1956. The British installed base of nuclear reactors used to be dominated by domestically developed Magnox and their successor AGR reactors with graphite moderator and coolant but the last of those are nearing the end of their useful life and will be replaced with "international" pressurised water reactors. At the peak in 1997, 26% of the nation's electricity was generated from nuclear power. Since then several reactors have closed and by 2012 the share had decl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Small Modular Reactor Designs
Small modular reactors (SMR) are much smaller than the current nuclear reactors (300 MWe 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] |
Uranium Dioxide
Uranium dioxide or uranium(IV) oxide (), also known as urania or uranous oxide, is an oxide of uranium, and is a black, radioactive, crystalline powder that naturally occurs in the mineral uraninite. It is used in nuclear fuel rods in nuclear reactors. A mixture of uranium and plutonium dioxides is used as MOX fuel. Prior to 1960, it was used as yellow and black color in ceramic glazes and glass. Production Uranium dioxide is produced by reducing uranium trioxide with hydrogen. :UO3 + H2 → UO2 + H2O at 700 °C (973 K) This reaction plays an important part in the creation of nuclear fuel through nuclear reprocessing and uranium enrichment. Chemistry Structure The solid is isostructural with (has the same structure as) fluorite (calcium fluoride), where each U is surrounded by eight O nearest neighbors in a cubic arrangement. In addition, the dioxides of cerium, thorium, and the transuranic elements from neptunium through californium have the same structures. No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheffield
Sheffield is a city status in the United Kingdom, city in South Yorkshire, England, whose name derives from the River Sheaf which runs through it. The city serves as the administrative centre of the City of Sheffield. It is Historic counties of England, historically part of the West Riding of Yorkshire and some of its southern suburbs were transferred from Derbyshire to the city council. It is the largest settlement in South Yorkshire. The city is in the eastern foothills of the Pennines and the valleys of the River Don, Yorkshire, River Don with its four tributaries: the River Loxley, Loxley, the Porter Brook, the River Rivelin, Rivelin and the River Sheaf, Sheaf. Sixty-one per cent of Sheffield's entire area is green space and a third of the city lies within the Peak District national park. There are more than 250 parks, woodlands and gardens in the city, which is estimated to contain around 4.5 million trees. The city is south of Leeds, east of Manchester, and north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressurized Water Reactor
A pressurized water reactor (PWR) is a type of light-water reactor, 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 nuclear reactor coolant, coolant (water) is pumped under high pressure to the reactor core where it is heated by the energy released by the Nuclear fission, fission of atoms. The heated, high pressure water then flows to a Water-tube boiler, 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 horizo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Generic Design Assessment
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 |
FOAK
FOAK is an acronym for First of a Kind. It is used in engineering economics where the first item or generation of items using a new technology or design can cost significantly more than later items or generations, which are called ''NOAK'' an acronym for ''nth of a kind''. References See also * Learning curve A learning curve is a graphical representation of the relationship between how Skill, proficient people are at a task and the amount of experience they have. Proficiency (measured on the vertical axis) usually increases with increased experience ... Industrial design {{econ-term-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exelon
Exelon Corporation is an American Fortune 100 energy company headquartered in Chicago, Illinois and incorporated in Pennsylvania. It generates revenues of approximately $33.5 billion and employs approximately 33,400 people. Exelon is the largest electric parent company in the United States by revenue, the largest regulated electric utility in the United States with approximately 10 million customers, and was formerly the largest operator of nuclear power plants in the United States and the largest non-governmental operator of nuclear power plants in the world until the generation sources were spun off into an independent company, Constellation Energy, in 2022. Exelon was created in October 2000 by the merger of PECO Energy Company of Philadelphia and Unicom Corp of Chicago, which owned Commonwealth Edison. Exelon operates regulated utilities in Illinois, Pennsylvania, Maryland, Delaware, New Jersey, and Washington, DC. In October 2009, Exelon had full or majority ownership of 23 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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