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EPR (nuclear Reactor)
The EPR is a third generation pressurised water reactor design. It has been designed and developed mainly by Framatome (part of Areva between 2001 and 2017) and Électricité de France (EDF) in France, and Siemens in Germany. In Europe this reactor design was called European Pressurised Reactor, and the internationalised name was Evolutionary Power Reactor, but it is now simply named EPR. The first operational EPR unit was China's Taishan 1, which started commercial operation in December 2018. Taishan 2 started commercial operation in September 2019. European units have been so far plagued with prolonged construction delays and substantial cost overruns. The first EPR unit to start construction, at Olkiluoto in Finland, achieved criticality in December 2021. It is expected to begin commercial operation after February 2023, a delay of thirteen years. The second EPR unit to start construction, at Flamanville in France, is also facing a decade-long delay (to 2024). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EPR OLK3 Lage
EPR may refer to: Science and technology * EPR (nuclear reactor), European Pressurised-Water Reactor * EPR paradox (Einstein–Podolsky–Rosen paradox), in physics * Earth potential rise, in electrical engineering * East Pacific Rise, a mid-oceanic ridge * Electron paramagnetic resonance * Engine pressure ratio,of a jet engine * Ethylene propylene rubber * Yevpatoria RT-70 radio telescope (Evpatoria planetary radar) * Bernays–Schönfinkel class or effectively propositional, in mathematical logic * WS-Addressing#Endpoint references, Endpoint references in Web addressing * Ethnic Power Relations, dataset of ethnic groups * ePrivacy Regulation (ePR), proposal for the regulation of various privacy-related topics, mostly in relation to electronic communications within the European Union Medicine * Enhanced permeability and retention effect, a controversial concept in cancer research * Emergency Preservation and Resuscitation, a medical procedure * Electronic patient record Environme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens AG
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flamanville 3
The Flamanville Nuclear Power Plant is located at Flamanville, Manche, France on the Cotentin Peninsula. The power plant houses two pressurized water reactors (PWRs) that produce 1.3 GWe each and came into service in 1986 and 1987, respectively. It produced 18.9 TWh in 2005, which amounted to 4% of the electricity production in France. In 2006 this figure was about 3.3%. At the time, there were 671 workers regularly working at the plant. A third reactor at the site, an EPR unit, began construction in 2007 with its commercial introduction scheduled for 2012. the project is more than five times over budget and years behind schedule. Various safety problems have been raised, including weakness in the steel used in the reactor. In July 2019, further delays were announced, pushing back the commercial introduction date to the end of 2022. In January 2022, more delays were announced, with fuel loading continuing until mid-2023, and again in December 2022, delaying fuel loading to ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Élisabeth Borne
Élisabeth Borne (; born 18 April 1961) is a French politician who has served as Prime Minister of France since May 2022. She is a member of President Emmanuel Macron's party Renaissance. A civil engineer, government official and manager of state enterprises in the transport and construction sectors, Borne previously served as minister of transport (2017–2019) and minister of ecology (2019–2020). She was then minister of labour, employment and integration in the Castex government from 2020 to 2022. On 16 May 2022, President Macron appointed her as the next prime minister after Castex's resignation, as it is the tradition following the presidential elections in France. Borne is the second woman to hold the position after Édith Cresson, who served from 1991 to 1992. Early life and education Borne was born in Paris on 18 April 1961. Her French mother, Marguerite Lecèsne, was a pharmacist. Her father, Joseph Bornstein, son of Zelig Bornstein from Łuków (formerly Congress P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autorité De Sûreté Nucléaire
The ''Autorité de sûreté nucléaire'' ( en, Nuclear Safety Authority, ASN) is an independent French administrative authority set up by law 2006-686 of 13 June 2006 concerning nuclear transparency and security. It has replaced the General Direction for Nuclear Safety and Radioprotection. Its task, on behalf of the State, is to regulate nuclear safety and radiation protection in order to protect workers, patients, the public and the environment from the risks involved in nuclear activities. It also contributes to informing the citizens. From 2006 to 2012, the president of the ASN was André-Claude Lacoste who was also a founding member and had been chairman of the International Nuclear Regulators' Association (INRA) and the Western European Nuclear Regulators' Association (WENRA). He was also the chairman of the Commission on Safety Standards (CSS) of the IAEA. Since November 2018, the president of the ASN is Bernard Doroszczuk. Early during the Fukushima Daiichi nuclear disas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicolas Hulot
Nicolas Jacques André Hulot (; born 30 April 1955) is a French journalist and environmental activist. He is the founder and honorary president of the Nicolas Hulot Foundation, an environmental group established in 1990. Hulot ran as a candidate in the primary for the Europe Ecology – The Greens (EELV) party in 2011, but lost to Eva Joly in the second round. He declined offers to be a government minister for Jacques Chirac, Nicolas Sarkozy and François Hollande, but in May 2017, he agreed to serve under Emmanuel Macron and was appointed Minister of Ecological and Solidary Transition in the first government of Prime Minister Édouard Philippe. In August 2018, he announced his resignation from the Second Philippe government, citing policy disagreements and leadership issues. Hulot is an officer in the Legion of Honour and a knight in the Ordre des Arts et des Lettres. Early life Hulot was born 30 April 1955 in Lille, France, to Monique Marguerite Marie Hulot (née Moulun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Bernard Lévy
Jean-Bernard Lévy (born 18 March 1955) is a French businessman, and the CEO and chairman of EDF. Early life Born on 18 March 1955, the son of a doctor, Lévy attended the Lycée Pasteur in Neuilly-sur-Seine. His parents sent him to England for a year to learn English, at St Martin's preparatory school in Northwood, Middlesex. He then studied at the École Polytechnique, and from 1973 the École nationale supérieure des télécommunications. Career Early career Lévy started his career as an engineer at France Telecom in 1979, in Angers. In 1982, he joined the Directorate General of Telecommunications within the PTT France, responsible for the management of senior staff and budgets, then promoted to deputy chief of staff. Career in the public sector In 1986, Lévy moved to Ministry of Posts, Telegraphs, and Telephones under secretary of state Gérard Longuet, acting as technical advisor and consultant for international affairs and industry. After a period at Matra Space a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fukushima Daiichi Nuclear Disaster
The was a nuclear accident in 2011 at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima, Japan. The proximate cause of the disaster was the 2011 Tōhoku earthquake and tsunami, which occurred on the afternoon of 11 March 2011 and remains the most powerful earthquake ever recorded in Japan. The earthquake triggered a powerful tsunami, with 13–14-meter-high waves damaging the nuclear power plant's emergency diesel generators, leading to a loss of electric power. The result was the most severe nuclear accident since the Chernobyl disaster in 1986, classified as level seven on the International Nuclear Event Scale (INES) after initially being classified as level five, and thus joining Chernobyl as the only other accident to receive such classification. While the 1957 explosion at the Mayak facility was the second worst by radioactivity released, the INES ranks incidents by impact on population, so Chernobyl (335,000 people evacuated) and Fukushima (154,000 evacuate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Core Damage Frequency
Core damage frequency (CDF) is a term used in probabilistic risk assessment (PRA) that indicates the likelihood of an accident that would cause severe damage to a nuclear fuel in a nuclear reactor core. Core damage accidents are considered extremely serious because severe damage to the fuel in the core prevents adequate heat removal or even safe shutdown, which can lead to a nuclear meltdown. Some sources on CDF consider core damage and core meltdown to be the same thing, and different methods of measurement are used between industries and nations, so the primary value of the CDF number is in managing the risk of core accidents within a system and not necessarily to provide large-scale statistics. An assessment of permanent or temporary changes in a nuclear power plant is performed to evaluate if such changes are within risk criteria. For example, the probability of core damage may increase while replacing a component, but the probability would be even ''higher'' if that component ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Containment Building
A containment building is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of . The containment is the fourth and final barrier to radioactive release (part of a nuclear reactor's defence in depth strategy), the first being the fuel ceramic itself, the second being the metal fuel cladding tubes, the third being the reactor vessel and coolant system. Each nuclear plant in the US is designed to withstand certain conditions which are spelled out as "Design Basis Accidents" in the Final Safety Analysis Report (FSAR). The FSAR is available for public viewing, usually at a public library near the nuclear plant. The containment building itself is typically an airtight steel structure enclosing the reactor normally sealed off from the outside atmosphere. The steel is either free-standing or attached to the concrete missile shield. In the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decay Heat
Decay heat is the heat released as a result of radioactive decay. This heat is produced as an effect of radiation on materials: the energy of the alpha, beta or gamma radiation is converted into the thermal movement of atoms. Decay heat occurs naturally from decay of long-lived radioisotopes that are primordially present from the Earth's formation. In nuclear reactor engineering, decay heat continues to be generated after the reactor has been shut down (see SCRAM and nuclear chain reactions) and power generation has been suspended. The decay of the short-lived radioisotopes such as iodine-131 created in fission continues at high power for a time after shut down. The major source of heat production in a newly shut down reactor is due to the beta decay of new radioactive elements recently produced from fission fragments in the fission process. Quantitatively, at the moment of reactor shutdown, decay heat from these radioactive sources is still 6.5% of the previous core power if th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Core Catcher
A core catcher is a device provided to catch the molten core material ( corium) of a nuclear reactor in case of a nuclear meltdown and prevent it from escaping the containment building. A core catcher is made from a special concrete ceramic to prevent material from trickling through; it also has a cooling mechanism to cool down the core material. The core catcher of the European Pressurized Reactor (EPR) has 170 m² expansion area and a mass of 500 t. Examples of reactor types with core catchers, besides the EPR, are: * SNR-300 (fast breeder)Areva Brochure: EPR - reference number:G-61-V1-07-GER * AES-91 / VVER-1000/428 * VVER-1200(PWR) * SWR1000 (BWR) * ESBWR ( BWR) * ABWR (BWR) * APWR ( PWR) * Atmea I (PWR) * ACPR-1000 (PWR) * EU-APR1400 (PWR) * IPWR-900 The AES-91, a project of Atomstroyexport based on the VVER-1000 design, was envisaged to be the first type of nuclear plant to have a core catcher directly underneath the reactor. Thus, in early 2011, the two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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