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Nuclear Power In The Czech Republic
The Czech Republic operates two nuclear power plants: Temelín and Dukovany. the government intends to increase the share of nuclear electricity production from 30 % to 58 %. To this end, a new reactor is to be constructed at the Dukovany site, which will replace older units by 2035. New capacities are also expected to be added at the Temelín site. History In 1956 a decision was made to build the first nuclear power station in Czechoslovakia, in Jaslovské Bohunice (western Slovakia). The KS 150 or A1 reactor (120 MWe) was selected because of its ability to use unenriched uranium mined in Czechoslovakia. The KS 150 was designed in the Soviet Union and built in Czechoslovakia. Construction was burdened by many problems and took an unexpectedly lengthy 16 years. In 1972 the plant was activated. In 1977 an accident stopped energy production and since 1979 the reactor has been partly dismantled, but not decommissioned. In 1970 an agreement with the Soviet Union ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czech Republic
The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The Czech Republic has a hilly landscape that covers an area of with a mostly temperate continental and oceanic climate. The capital and largest city is Prague; other major cities and urban areas include Brno, Ostrava, Plzeň and Liberec. The Duchy of Bohemia was founded in the late 9th century under Great Moravia. It was formally recognized as an Imperial State of the Holy Roman Empire in 1002 and became a kingdom in 1198. Following the Battle of Mohács in 1526, the whole Crown of Bohemia was gradually integrated into the Habsburg monarchy. The Protestant Bohemian Revolt led to the Thirty Years' War. After the Battle of White Mountain, the Habsburgs consolidated their rule. With the dissolution of the Holy Empire in 1806, the Cro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Used Nuclear Fuel
Spent nuclear fuel, occasionally called used nuclear fuel, is nuclear fuel that has been irradiated in a nuclear reactor (usually at a nuclear power plant). It is no longer useful in sustaining a nuclear reaction in an ordinary thermal reactor and depending on its point along the nuclear fuel cycle, it may have considerably different isotopic constituents. The term "fuel" is slightly confusing, as it implies a combustion of some type, which does not occur in a nuclear power plant. Nevertheless, this term is generally accepted. Nature of spent fuel Nanomaterial properties In the oxide fuel, intense temperature gradients exist that cause fission products to migrate. The zirconium tends to move to the centre of the fuel pellet where the temperature is highest, while the lower-boiling fission products move to the edge of the pellet. The pellet is likely to contain many small bubble-like pores that form during use; the fission product xenon migrates to these voids. Some of this xeno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czech Lands
The Czech lands or the Bohemian lands ( cs, České země ) are the three historical regions of Bohemia, Moravia, and Czech Silesia. Together the three have formed the Czech part of Czechoslovakia since 1918, the Czech Socialist Republic since 1 January 1969 and the Czech Republic since 1 January 1993. The Czech lands are also referred to as Czechia. In a historical context, Czech texts use the term to refer to any territory ruled by the Kings of Bohemia, i.e., the lands of the Bohemian Crown (') as established by Emperor Charles IV in the 14th century. This would include territories like the Lusatias (which in 1635 fell to Saxony) and the whole of Silesia, all ruled from Prague Castle at that time. After the conquest of Silesia by the Prussian king Frederick the Great in 1742, the remaining lands of the Bohemian Crown—Bohemia, Moravia and Austrian Silesia—have been more or less co-extensive with the territory of the modern-day Czech Republic. Alternative names The term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Nuclear News
World Nuclear Association is the international organization that promotes nuclear power and supports the companies that comprise the global nuclear industry. Its members come from all parts of the nuclear fuel cycle, including uranium mining, uranium conversion, uranium enrichment, nuclear fuel fabrication, plant manufacture, transport, and the disposition of used nuclear fuel as well as electricity generation itself. Together, World Nuclear Association members are responsible for 70% of the world's nuclear power as well as the vast majority of world uranium, conversion and enrichment production. The Association says it aims to fulfill a dual role for its members: Facilitating their interaction on technical, commercial and policy matters and promoting wider public understanding of nuclear technology. It has a secretariat of around 30 staff. The Association was founded in 2001 on the basis of the Uranium Institute, itself founded in 1975. Membership World Nuclear Association ... [...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] |
Velvet Revolution
The Velvet Revolution ( cs, Sametová revoluce) or Gentle Revolution ( sk, Nežná revolúcia) was a non-violent transition of power in what was then Czechoslovakia, occurring from 17 November to 28 November 1989. Popular demonstrations against the one-party government of the Communist Party of Czechoslovakia included students and older dissidents. The result was the end of 41 years of one-party rule in Czechoslovakia, and the subsequent dismantling of the command economy and conversion to a parliamentary republic. On 17 November 1989 (International Students' Day), riot police suppressed a student demonstration in Prague. The event marked the 50th anniversary of a violently suppressed demonstration against the Nazi storming of Prague University in 1939 where 1,200 students were arrested and 9 killed (see Origin of International Students' Day). The 1989 event sparked a series of demonstrations from 17 November to late December and turned into an anti-communist demonstration. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Václav Havel
Václav Havel (; 5 October 193618 December 2011) was a Czech statesman, author, poet, playwright, and former dissident. Havel served as the last president of Czechoslovakia from 1989 until the dissolution of Czechoslovakia in 1992 and then as the first president of the Czech Republic from 1993 to 2003 and was the first democratically elected president of either country after the fall of communism. As a writer of Czech literature, he is known for his plays, essays, and memoirs. His educational opportunities having been limited by his bourgeois background, when freedoms were limited by the Czechoslovak Socialist Republic, Havel first rose to prominence as a playwright. In works such as '' The Garden Party'' and ''The Memorandum'', Havel used an absurdist style to criticize the Communist system. After participating in the Prague Spring and being blacklisted after the Warsaw Pact invasion of Czechoslovakia, he became more politically active and helped found several dissident ini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RBMK
The RBMK (russian: реактор большой мощности канальный, РБМК; ''reaktor bolshoy moshchnosti kanalnyy'', "high-power channel-type reactor") is a class of graphite-moderated nuclear power reactor designed and built by the Soviet Union. The name refers to its design where, instead of a large steel pressure vessel surrounding the entire core, the core is surrounded by a cylindrical annular steel tank inside a concrete vault and each fuel assembly is enclosed in an individual 8 cm (inner) diameter pipe (called a "technological channel"). The channels also contain the coolant, and are surrounded by graphite. The RBMK is an early Generation II reactor and the oldest commercial reactor design still in wide operation. Certain aspects of the original RBMK reactor design, such as the large positive void coefficient, the 'positive scram effect' of the control rods and instability at low power levels, contributed to the 1986 Chernobyl disaster, in which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chernobyl
Chernobyl ( , ; russian: Чернобыль, ) or Chornobyl ( uk, Чорнобиль, ) is a partially abandoned city in the Chernobyl Exclusion Zone, situated in the Vyshhorod Raion of northern Kyiv Oblast, Ukraine. Chernobyl is about north of Kyiv, and southwest of the Belarusian city of Gomel. Before its evacuation, the city had about 14,000 residents, while around 1,000 people live in the city today. First mentioned as a ducal hunting lodge in 1193, the city has changed hands multiple times over the course of history. Jews moved into the city in the 16th century, and a now-defunct monastery was established in the area in 1626. By the end of the 18th century, Chernobyl was a major centre of Hasidic Judaism under the Twersky Dynasty, who left Chernobyl after the city was subject to pogroms in the early 20th century. The Jewish community was later murdered during the Holocaust. Chernobyl was chosen as the site of Ukraine's first nuclear power plant in 1972, locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radioactive Waste Repository Authority
The Czech Radioactive Waste Repository Authority (SÚRAO) was established on 1 June 1997 as a state organisation established by the Ministry of Industry and Trade. In 2001, SÚRAO assumed the status of a government agency. The Authority is headed by its managing director, Dr. Jiří Slovák (since 2014). The governing body of SÚRAO consists of its Board which is made up of representatives from the government, radioactive waste producers and the general public. The managing director and members of the Board of SÚRAO are directly appointed by the Minister of Industry and Trade. SÚRAO's activities The mission of the Radioactive Waste Repository Authority is to ensure the safe disposal of radioactive waste in the Czech Republic in accordance with requirements concerning the protection of the population and the environment from any harmful effects. SÚRAO's principal responsibilities include: * the safe operation of existing radioactive waste repositories; * preparation for the const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spent Fuel
Spent nuclear fuel, occasionally called used nuclear fuel, is nuclear fuel that has been irradiated in a nuclear reactor (usually at a nuclear power plant). It is no longer useful in sustaining a nuclear reaction in an ordinary thermal reactor and depending on its point along the nuclear fuel cycle, it may have considerably different isotopic constituents. The term "fuel" is slightly confusing, as it implies a combustion of some type, which does not occur in a nuclear power plant. Nevertheless, this term is generally accepted. Nature of spent fuel Nanomaterial properties In the oxide fuel, intense temperature gradients exist that cause fission products to migrate. The zirconium tends to move to the centre of the fuel pellet where the temperature is highest, while the lower-boiling fission products move to the edge of the pellet. The pellet is likely to contain many small bubble-like pores that form during use; the fission product xenon migrates to these voids. Some of this xenon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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