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Chapelcross
Chapelcross nuclear power station is a former Magnox nuclear power station undergoing decommissioning. It is located in Annan in Dumfries and Galloway in southwest Scotland, and was in operation from 1959 to 2004. It was the sister plant to the Calder Hall nuclear power station plant in Cumbria, England; both were commissioned and originally operated by the United Kingdom Atomic Energy Authority. The primary purpose of both plants was to produce weapons-grade plutonium for the UK's nuclear weapons programme, but they also generated electrical power for the National Grid. Later in the reactors' lifecycle, as the UK slowed the development of the nuclear deterrent as the cold war came to a close, power production became the primary goal of reactor operation. The site is being decommissioned by Nuclear Decommissioning Authority subsidiary Magnox Ltd. The station's four cooling towers were demolished in 2007. The reactors are spent-fuel free and are currently undergoing dismantleme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chapelcross May 2019
Chapelcross nuclear power station is a former Magnox nuclear power station undergoing decommissioning. It is located in Annan in Dumfries and Galloway in southwest Scotland, and was in operation from 1959 to 2004. It was the sister plant to the Calder Hall nuclear power station plant in Cumbria, England; both were commissioned and originally operated by the United Kingdom Atomic Energy Authority. The primary purpose of both plants was to produce weapons-grade plutonium for the UK's nuclear weapons programme, but they also generated electrical power for the National Grid. Later in the reactors' lifecycle, as the UK slowed the development of the nuclear deterrent as the cold war came to a close, power production became the primary goal of reactor operation. The site is being decommissioned by Nuclear Decommissioning Authority subsidiary Magnox Ltd. The station's four cooling towers were demolished in 2007. The reactors are spent-fuel free and are currently undergoing dism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnox
Magnox is a type of nuclear power/production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant. It belongs to the wider class of gas-cooled reactors. The name comes from the magnesium-aluminium alloy used to clad the fuel rods inside the reactor. Like most other " Generation I nuclear reactors", the Magnox was designed with the dual purpose of producing electrical power and plutonium-239 for the nascent nuclear weapons programme in Britain. The name refers specifically to the United Kingdom design but is sometimes used generically to refer to any similar reactor. As with other plutonium-producing reactors, conserving neutrons is a key element of the design. In magnox, the neutrons are moderated in large blocks of graphite. The efficiency of graphite as a moderator allows the Magnox to run using natural uranium fuel, in contrast with the more common commercial light-water reactor which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calder Hall Nuclear Power Station
Calder Hall Nuclear Power Station is a former Magnox nuclear power station at Sellafield in Cumbria in North West England. Calder Hall was the world's first full-scale commercial nuclear power station to enter operation, and was the sister plant to the Chapelcross plant in Scotland. Both were commissioned and originally operated by the United Kingdom Atomic Energy Authority. The primary purpose of both plants was to produce weapons-grade plutonium for the UK's nuclear weapons programme, but they also generated electrical power for the National Grid. The site is partially demolished and is being decommissioned by Sellafield Ltd. The station's four cooling towers were demolished in 2007. The reactors were fully defueled in 2019 and fuel was taken across the Sellafield site to be reprocessed within the Magnox Reprocessing Plant. History Calder Hall was an early development of the existing Windscale site, and due to its size required considerable extension of the site to the sout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Atomic Energy Authority
The United Kingdom Atomic Energy Authority is a UK government research organisation responsible for the development of fusion energy. It is an executive non-departmental public body of the Department for Business, Energy and Industrial Strategy (BEIS). The authority focuses on United Kingdom and European fusion energy research programmes at Culham in Oxfordshire, including the world's most powerful operating fusion device, the Joint European Torus (JET). The research aims to develop fusion power as a commercially viable, environmentally responsible energy source for the future. record59 megajoules of sustained fusion energy was demonstrated by scientists and engineers working on JET in December 2021. United Kingdom Atomic Energy Authority owns the Culham Science Centre and has a stake in the Harwell Campus, and is involved in the development of both sites as locations for science and innovation-based business. On its formation in 1954, the authority was responsible for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitchell Construction
Mitchell Construction was once a leading British civil engineering business based in Peterborough. History The business was founded by F.G. (Tiny) Mitchell in London in 1933 as an offshoot of Mitchell Engineering, his engineering business. In 1940 the Company moved to Peterborough because of the destruction created in London by The Blitz. David Morrell took over management of the business from Tiny Mitchell in 1954. During the 1950s the business expanded rapidly exploiting hydro-electric power opportunities in Scotland. In 1962 Mitchell Construction acquired Kinnear Moodie, a leading tunneling business. Major projects Major projects undertaken by the business included: * The Loch Cluanie Dam completed in 1957 * Chapelcross Power Station completed in 1959 * The advanced gas-cooled reactor at Sellafield completed in 1962 * Fawley Power Station at Southampton completed in 1962 * The Scotswood Bridge completed in 1967 * The Kariba Dam North Cavern completed in 1973 Dem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UKAEA
The United Kingdom Atomic Energy Authority is a UK government research organisation responsible for the development of fusion energy. It is an executive non-departmental public body of the Department for Business, Energy and Industrial Strategy (BEIS). The authority focuses on United Kingdom and European fusion energy research programmes at Culham in Oxfordshire, including the world's most powerful operating fusion device, the Joint European Torus (JET). The research aims to develop fusion power as a commercially viable, environmentally responsible energy source for the future. record59 megajoules of sustained fusion energy was demonstrated by scientists and engineers working on JET in December 2021. United Kingdom Atomic Energy Authority owns the Culham Science Centre and has a stake in the Harwell Campus, and is involved in the development of both sites as locations for science and innovation-based business. On its formation in 1954, the authority was responsible for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnox Ltd
Magnox Ltd is a nuclear decommissioning Site Licence Company (SLC) under the Nuclear Decommissioning Authority (NDA), a government body set up specifically to deal with the nuclear legacy under the Energy Act 2004. In September 2019, it became a direct subsidiary of the NDA. Magnox Ltd is responsible for the decommissioning of ten Magnox nuclear power stations and two former research facilities in the United Kingdom. The twelve sites are located at Berkeley, Bradwell, Chapelcross, Dungeness A, Hinkley Point A, Hunterston A, Oldbury, Sizewell A, Trawsfynydd, Wylfa, Harwell and Winfrith. All the sites have ceased production. In addition, as part of the Trawsfynydd unit, Magnox Ltd generates hydro-electric power at Maentwrog power station. The only Magnox power station in the United Kingdom not managed by Magnox Ltd is Calder Hall, which is part of the Sellafield site and is controlled by Sellafield Ltd. History Magnox Ltd is the successor company to Magnox Electric, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annan, Dumfries And Galloway
Annan ( ; gd, Inbhir Anainn) is a town and former royal burgh in Dumfries and Galloway, south-west Scotland. Historically part of Dumfriesshire, its public buildings include Annan Academy, of which the writer Thomas Carlyle was a pupil, and a Georgian building now known as "Bridge House". Annan also features a Historic Resources Centre. In Port Street, some of the windows remain blocked up to avoid paying the window tax. Each year on the first Saturday in July, Annan celebrates the Royal Charter and the boundaries of the Royal Burgh are confirmed when a mounted cavalcade undertakes the Riding of the Marches. Entertainment includes a procession, sports, field displays and massed pipe bands. Annan's in America first migrated to New York and Virginia. Annandale Virginia is an early settlement which celebrates The Scottish Games annually. Geography Annan stands on the River Annan—from which it is named—nearly from its mouth, accessible to vessels of 60 tons as f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Decommissioning
Nuclear decommissioning is the process whereby a nuclear facility is dismantled to the point that it no longer requires measures for radiation protection. The presence of radioactive material necessitates processes that are potentially occupationally hazardous, expensive, time-intensive, and present environmental risks that must be addressed to ensure radioactive materials are either transported elsewhere for storage or stored on-site in a safe manner.Benjamin K. Sovacool. "A Critical Evaluation of Nuclear Power and Renewable Electricity in Asia", ''Journal of Contemporary Asia'', Vol. 40, No. 3, August 2010, p. 373. The challenge in nuclear decommissioning is not just technical, but also economical and social. Decommissioning is an administrative and technical process. It includes clean-up of radioactive materials and progressive demolition of the facility. Once a facility is fully decommissioned, no radiological danger should persist. The costs of decommissioning are gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Annan
Royal Air Force Annan or more simply RAF Annan is a former Royal Air Force station located about north-east of the town of Annan, Dumfries and Galloway, Scotland, which was operational during the Second World War. Station history Initially serving as a sub-site of No. 18 Maintenance Unit in 1940–1941, RAF Annan was opened as an air station in April 1942 as the base for No. 55 Operational Training Unit RAF (OTU), to train fighter pilots. As part of No. 81 Group 55 OTU pilots flew at low level over the Solway Firth training to fly "Rhubarb" missions, crossing the English Channel to attack targets of opportunity in France and the Low Countries. Initially they flew Hawker Hurricanes; and later, Miles Master trainers and Hawker Typhoon fighter-bombers. In June 1943 55 OTU was transferred to No. 9 Group; and on 26 January 1944 was redesignated No. 4 Tactical Exercise Unit (TEU), then No. 3 TEU on 28 March 1944. No. 3 TEU moved to RAF Aston Down in July 1944, and Annan then serve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Decommissioning Authority
The Nuclear Decommissioning Authority (NDA) is a non-departmental public body of the Department for Business, Energy and Industrial Strategy, formed by the Energy Act 2004. It evolved from the Coal and Nuclear Liabilities Unit of the Department of Trade and Industry. It came into existence during late 2004, and took on its main functions on 1 April 2005. Its purpose is to deliver the decommissioning and clean-up of the UK's civil nuclear legacy in a safe and cost-effective manner, and where possible to accelerate programmes of work that reduce hazard. The NDA does not directly manage the UK's nuclear sites. It oversees the work through contracts with specially designed companies known as site licence companies. The NDA determines the overall strategy and priorities for managing decommissioning. Although the NDA itself employs about 250 staff, its subsidiaries employ about 15,000 staff across the NDA estate. Its annual budget is £3.2billion, the vast majority of which is spent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BNFL
British Nuclear Fuels Limited (BNFL) was a nuclear power, nuclear energy and nuclear fuel, fuels company owned by the UK Government. It was a manufacturer of nuclear fuel (notably MOX), ran reactors, generated and sold electricity, reprocessed and managed spent fuel (mainly at Sellafield), and decommissioned nuclear plants and other similar facilities. It was created in February 1971 from the de-merger of the production division of the UKAEA, UK Atomic Energy Authority (UKAEA). Until 2003, its headquarters were at Risley, Warrington, Risley, near Warrington, England. BNFL's headquarters were then moved to Daresbury Park industrial estate, also near Warrington. On 1 April 2005, BNFL formed a new holding company and started a rigorous restructuring process which would transfer or sell most of its entire domain, divisions. In 2005, it transferred all of its nuclear sites to the Nuclear Decommissioning Authority. It then sold its Westinghouse Electric Company subsidiary in February ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
