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Nuclear Power In Japan
Nuclear power generated 5.55% of Japan's electricity in 2023. The country's nuclear power industry was heavily influenced by the Fukushima accident, caused by the 2011 Tōhoku earthquake and tsunami. Before 2011, Japan was generating up to 30% of its electrical power from nuclear reactors. After the Fukushima accident, all reactors were shut down temporarily. , of the 54 nuclear reactors present in Japan before 2011, there were 33 operable reactors but only 13 reactors in 6 power plants were actually operating. A total of 24 reactors are scheduled for decommissioning or are in the process of being decommissioned. Others are in the process of being reactivated, or are undergoing modifications aimed to improve resiliency against natural disasters; Japan's 2030 energy goals posit that at least 33 will be reactivated by a later date. The Fukushima accident hardened attitudes toward nuclear power. In June 2011, immediately after the accident, more than 80% of Japanese said they wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Pile-5
Chicago Pile-5 (CP-5) was the last of the line of Chicago Pile research reactors which started with CP-1 in 1942. The first reactor built on the Argonne National Laboratory campus in DuPage county, it operated from 1954-1979.Heavy Water and Graphite Reactors: CP-5 Argonne National Laboratory CP-5 was a using as fuel and as coolant and as a neutron moderator. It p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onagawa Nuclear Power Station In 2012
is a town located in Miyagi Prefecture, Japan. , the town had an estimated population of 6,319, and a population density of 97 persons per km2 in 3,110 households. The total area of the town is . Geography Onagawa is located on the rugged Sanriku Coast of north-central Miyagi Prefecture, with the Kitakami Mountains to the west and the city of Ishinomaki to the east, south and north. Much of the town is within the borders of the Sanriku Fukkō National Park. Onagawa is a natural deep water port, located at the intersection of two major ocean currents and noted for its commercial fishing industry. Located nearby on the southern side of Onagawa Bay is the Onagawa Nuclear Power Plant. Neighboring municipalities Miyagi Prefecture *Ishinomaki Climate Onagawa has a humid climate (Köppen climate classification ''Cfa'') characterized by mild summers and cold winters with heavy snowfall. The average annual temperature in Onagawa is 11.1 °C. The average annual rainfall is 1213& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IHI Corporation
, formerly known as is a Japanese engineering corporation headquartered in Tokyo, Japan that produces and offers ships, space launch vehicles, aircraft engines, marine diesel engines, gas turbines, gas engines, railway systems, turbochargers for automobiles, plant engineering, industrial machinery, power station boilers and other facilities, suspension bridges and other structures. IHI is listed on the Tokyo Stock Exchange Section 1. Following the reporting of a company whistleblower in February 2024, on April 24, 2024, the company announced that investigation was underway by the Ministry of Land, Infrastructure, Transport and Tourism of its subsidiary, IHI Power Systems Co., which had falsified its engine data since 2003, affecting over 4,000 engines worldwide. History * 1853 – establishment of Ishikawajima Shipyard by the Mito Domain under order from the Edo Shogunate, who faced the Perry Expedition and the subsequent pressure to compete with the Great Powers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsubishi Heavy Industries
is a Japanese Multinational corporation, multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Motors. MHI's products include aerospace and Automotive industry, automotive components, Air conditioning, air conditioners, elevators, Forklift, forklift trucks, Hydraulic machinery, hydraulic equipment, Printing, printing machines, missiles, tanks, Electric power system, power systems, ships, aircraft, Rail transport, railway systems, and space launch vehicles. Through its defense-related activities, it is the world's 23rd-largest defense contractor measured by 2011 defense revenues and the largest based in Japan. History In 1857, at the request of the Tokugawa Shogunate, a group of Dutch people, Dutch engineers were invited, including Dutch naval engineer Hendrik Hardes, and began work on the ''Nagasaki Yotetsu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RV Mirai
RV ''Mirai'' is a Japanese oceanographic research vessel. She was originally built as the nuclear-powered general cargo ship ', but never carried commercial cargo.http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/27/029/27029493.pdf History Development and construction ''Mutsu'' (1972–1996) The reactor was completed on 25 August 1972, and fuel was loaded on 4 September. Good overview of the construction, leak, and lessons learnt. When officials announced that the first test run was to be run at the pier in Ōminato, local protests forced them to reconsider. Eventually it was decided to test the ship in the open ocean, east of Cape Shiriya. The ship departed Ōminato on 26 August 1974, and the reactor attained criticality on 28 August. Radiation accident As the crew brought the reactor up to 1.4% of capacity at 5pm on 1 September 1974, there was a minor shielding inadequacy that permitted the escape of neutrons and gamma rays from the reactor shielding e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Marine Propulsion
Nuclear marine propulsion is Marine propulsion, propulsion of a ship or submarine with heat provided by a nuclear reactor. The power plant heats water to produce steam for a turbine used to turn the ship's propeller through a Transmission (mechanics), gearbox or through an electric generator and motor. Nuclear propulsion is used primarily within naval warships such as nuclear submarines and supercarriers. A small number of experimental civil nuclear ships have been built. Compared to oil- or coal-fuelled ships, nuclear propulsion offers the advantage of very long intervals of operation before refueling. All the fuel is contained within the nuclear reactor, so no cargo or supplies space is taken up by fuel, nor is space taken up by exhaust stacks or combustion air intakes. The low fuel cost is offset by high operating costs and investment in infrastructure, however, so nearly all nuclear-powered vessels are military. Power plants Basic operation of naval ship or submarine Most na ... [...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 (called magnesium non-oxidising), 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 commerc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric Company
The General Electric Company (GEC) was a major British industrial conglomerate involved in consumer and Arms industry, defence electronics, communications, and engineering. It was originally founded in 1886 as G. Binswanger and Company as an electrical goods wholesaler based in London. It quickly adopted a then-unorthodox business model of supplying electrical components over the counter. In 1889, the business was incorporated as the General Electric Company Ltd, and became a public limited company 11 years later. During the 1890s and 1900s, the company heavily invested into electric lighting, a sector that proved to be immensely profitable in the long term. The GEC was heavily impacted by the outbreak of the First World War, supplying various goods to the military, and thus becoming a major player in the electrical industry. In 1921, a new purpose-built company headquarters (Magnet House) was opened in Kingsway, London; two years later, GEC's industrial research laboratories at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tōkai Nuclear Power Plant
The was Japan's first commercial nuclear power plant. The first unit was built in the early 1960s to the British Magnox design, and generated power from 1966 until it was decommissioned in 1998. A second unit, nominally a separate power station called , was built at the site in the 1970s, the first in Japan to produce over 1000 MW of electricity. The site is located in Tokai in the Naka District in Ibaraki Prefecture, Japan and is operated by the Japan Atomic Power Company. The total site area amounts to 0.76 km2 (188 acres) with 0.33 km2, or 43% of it, being green area that the company is working to preserve. The plant has been not operational since the reactor shut down automatically due to the 2011 Tōhoku earthquake and tsunami. Reactors on site Unit 1 This reactor was built based on the British-developed Magnox technology for dual-use. Unit 1 is the first full-size nuclear reactor to be decommissioned in Japan. The experience in decommissioning this p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matsutarō Shōriki
was a Japanese media proprietor and politician. He was the owner of the ''Yomiuri Shimbun'', founder of the Yomiuri Giants and the Nippon Television Network Corporation. After a career as a police officer, Shoriki acquired the bankrupt ''Yomiuri Shimbun'' in 1924. Under his management it would become one of the major newspapers in Japan. Shoriki also popularised professional baseball in Japan during this time and founded the Yomiuri Giants. After the war Shoriki was arrested as a war criminal, but the charges were dropped in 1947. He founded Japan's first commercial television station, Nippon Television Network Corporation in 1952. Shoriki also became a prominent supporter of nuclear power in Japan. In 1955 he was elected to the House of Representatives. Shoriki became the first chairman of the Atomic Energy Commission under Prime Minister Ichiro Hatoyama and Chairman of the National Public Safety Commission under Prime Minister Nobusuke Kishi. For his varied activities h ... [...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. 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 The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fuk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
