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Kashiwazaki-Kariwa Nuclear Power Plant
The is a large, modern (housing the world's first advanced boiling water reactor or ABWR) nuclear power plant on a site.TEPCO Official Press Release (Japanese)First in Japan – Use of the Full Area for Power Plant Buildings, Reinforced Concrete R&D, and Waste Incinerator Building. July 25, 2002. The campus spans the towns of Kashiwazaki and Kariwa in Niigata Prefecture, Japan, on the coast of the Sea of Japan, where it gets cooling water. The plant is owned and operated by Tokyo Electric Power Company (TEPCO), and it is the largest nuclear generating station in the world by net electrical power rating. On July 16, 2007, the Chūetsu offshore earthquake took place, with its epicenter located only from the plant. The earthquake registered Mw 6.6, ranking it among the strongest earthquakes to occur in immediate range of a nuclear power plant. This shook the plant beyond design basis and initiated an extended shutdown for inspection, which indicated that greater earthquake-pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breakwater (structure)
A breakwater is a permanent structure constructed at a coastal area to protect against tides, currents, waves, and storm surges. Part of a coastal management system, breakwaters are installed to minimize erosion, and to protect anchorages, helping isolate vessels within them from marine hazards such as prop washes and wind-driven waves. A breakwater, also known in some contexts as a jetty, may be connected to land or freestanding, and may contain a walkway or road for vehicle access. On beaches where longshore drift threatens the erosion of beach material, smaller structures on the beach, usually perpendicular to the water's edge, may be installed. Their action on waves and current is intended to slow the longshore drift and discourage mobilisation of beach material. In this usage they are more usually referred to as groynes. Purposes Breakwaters reduce the intensity of wave action in inshore waters and thereby provide safe harbourage. Breakwaters may also be small structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kashiwazaki Kariwa-April 2011
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Kashiwazaki may refer to: Places * Kashiwazaki, Niigata People * Katsuhiko Kashiwazaki Katsuhiko Kashiwazaki (; born September 16, 1951, Kuji, Iwate) - Japanese judoka, champion and medalist of championships Japan and the world, author of books and one of the leading judo specialists in the world. Biography Katsuhiko K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kashiwazaki Kariwa Fault Lines
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Kashiwazaki may refer to: Places * Kashiwazaki, Niigata People * Katsuhiko Kashiwazaki Katsuhiko Kashiwazaki (; born September 16, 1951, Kuji, Iwate) - Japanese judoka, champion and medalist of championships Japan and the world, author of books and one of the leading judo specialists in the world. Biography Katsuhiko K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Atomic Energy Commission
The was established in 1956 and serves as the regulatory body for nuclear power in Japan. The Atomic Energy Basic Law contained a provision for its creation, and shortly after the law was enacted, the organization started activities, which are stated to be: assure that research and use of nuclear power is conducted safely and with peaceful intentions, and construct plans for the use and development of nuclear power. It is now structured with 3 different committee members as commission of inquiry to the Cabinet Office (Japan), Cabinet Office. The AEC is located in Kasumigaseki, Chiyoda, Tokyo. See also *Agency for Natural Resources and Energy *International Nuclear Regulators' Association *Japanese Nuclear Safety Commission *Nuclear Power in Japan *Nuclear Safety On Japanese nuclear incidents and accidents: *2011 Japanese nuclear accidents *Fukushima Daiichi nuclear disaster *Japanese reaction to Fukushima Daiichi nuclear disaster *Japanese nuclear incidents *Radiation effects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MOX Fuel
Mixed oxide fuel, commonly referred to as MOX fuel, is nuclear fuel that contains more than one oxide of fissile material, usually consisting of plutonium blended with natural uranium, reprocessed uranium, or depleted uranium. MOX fuel is an alternative to the low-enriched uranium (LEU) fuel used in the light-water reactors that predominate nuclear power generation. For example, a mixture of 7% plutonium and 93% natural uranium reacts similarly, although not identically, to LEU fuel (3 to 5% uranium-235). MOX usually consists of two phases, UO2 and PuO2, and/or a single phase solid solution (U,Pu)O2. The content of PuO2 may vary from 1.5 wt.% to 25–30 wt.% depending on the type of nuclear reactor. One attraction of MOX fuel is that it is a way of utilizing surplus weapons-grade nuclear material, weapons-grade plutonium, an alternative to storage of surplus plutonium, which would need to be secured against the risk of theft for use in nuclear weapons. On the other hand, some st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TEPCO
, also known as or TEPCO, is a Japanese electric utility holding company servicing Japan's Kantō region, Yamanashi Prefecture, and the eastern portion of Shizuoka Prefecture. This area includes Tokyo. Its headquarters are located in Uchisaiwaicho, Chiyoda, Tokyo, and international branch offices exist in Washington, D.C., and London. It is a founding member of strategic consortiums related to energy innovation and research; such as JINED, INCJ and MAI. In 2007, TEPCO was forced to shut the Kashiwazaki-Kariwa Nuclear Power Plant after the Niigata-Chuetsu-Oki earthquake. That year it posted its first loss in 28 years. Corporate losses continued until the plant reopened in 2009. Following the 2011 Tōhoku earthquake and tsunami, one of its power plants was the site of one of the world's most serious ongoing nuclear disaster, the Fukushima Daiichi nuclear disaster. TEPCO could face ¥ ($) in special losses in the current business year to March 2012, and the Japanese government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...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] |
Refueling Outage
The nuclear fuel cycle, also called nuclear fuel chain, is the progression of nuclear fuel through a series of differing stages. It consists of steps in the ''front end'', which are the preparation of the fuel, steps in the ''service period'' in which the fuel is used during reactor operation, and steps in the ''back end'', which are necessary to safely manage, contain, and either reprocess or dispose of spent nuclear fuel. If spent fuel is not reprocessed, the fuel cycle is referred to as an ''open fuel cycle'' (or a ''once-through fuel cycle''); if the spent fuel is reprocessed, it is referred to as a ''closed fuel cycle''. Basic concepts Nuclear power relies on fissionable material that can sustain a chain reaction with neutrons. Examples of such materials include uranium and plutonium. Most nuclear reactors use a moderator to lower the kinetic energy of the neutrons and increase the probability that fission will occur. This allows reactors to use material with far lower con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KK NPP Preformance
KK, K.K., kK, k.k., or other sequences of two k's with or without punctuation may refer to: Arts and media *KK, the production code for the 1967 ''Doctor Who'' serial ''The Faceless Ones'' * "KK" (song), a 2014 song by Wiz Khalifa * Kk. or Kirkpatrick number, a designation system for Domenico Scarlatti's keyboard sonatas, devised by Ralph Kirkpatrick * ''Kobylańska Katalog'' or ''KK'', catalogue of the works of Frédéric Chopin, authored by Krystyna Kobylańska * ''Kvinner og Klær'' (''Women and Clothes'') or ''KK'', a Norwegian weekly magazine * ''Kritika Kultura'' or ''KK'', a Philippine journal of literary, language and cultural studies Language * Kazakh language (ISO 639-1 code kk), a Turkic language * Kenyon and Knott or KK Phonetic Transcription, a transcription system used in the 1944 ''Pronouncing Dictionary of American English'' * Kernewek Kemmyn (Common Cornish), a variety of the Cornish language * Kk (digraph), used to represent a consonant in various languages Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Boiling Water Reactor
The advanced boiling water reactor (ABWR) is a Generation III boiling water reactor. The ABWR is currently offered by GE Hitachi Nuclear Energy (GEH) and Toshiba. The ABWR generates electrical power by using steam to power a turbine connected to a generator; the steam is boiled from water using heat generated by fission reactions within nuclear fuel. Kashiwazaki-Kariwa unit 6 is considered the first Generation III reactor in the world. Boiling water reactors (BWRs) are the second most common form of light water reactor with a direct cycle design that uses fewer large steam supply components than the pressurized water reactor (PWR), which employs an indirect cycle. The ABWR is the present state of the art in boiling water reactors, and is the first Generation III reactor design to be fully built, with several reactors complete and operating. The first reactors were built on time and under budget in Japan, with others under construction there and in Taiwan. ABWRs were on order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energy, digital industry, additive manufacturing and venture capital and finance, but has since divested from several areas, now primarily consisting of the first four segments. In 2020, GE ranked among the Fortune 500 as the 33rd largest firm in the United States by gross revenue. In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE – Irving Langmuir (1932) and Ivar Giaever (1973) – have been awarded the Nobel Prize. On November 9, 2021, the company announced it would divide itself into three investment-grade public companies. On July 18, 2022, GE unveiled the brand names of the companies it will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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