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2009 Sayano–Shushenskaya Power Station Accident
On 17 August 2009, a Water turbine, turbine in the hydroelectric power station of the Sayano-Shushenskaya Dam near Sayanogorsk in Russia failed catastrophically, killing 75 people and severely damaging the plant. The turbine hall was flooded, and a section of its roof collapsed. All but one of the ten turbines in the hall were destroyed or damaged. The entire power output of the plant, totalling 6,400 megawatts, was lost, leading to widespread power outages in the area. An official report on the accident was released in October 2009. Background The Sayano-Shushenskaya Dam is located on the Yenisey River in south-central Siberia, Russia, about south of Sayanogorsk, Khakassia. Before the accident, it was the largest hydroelectricity, hydroelectric power station in Russia and the sixth-largest in the world by average power generation. On 2 July 2009, RusHydro, the power station's operator, announced the station's all-time highest electricity output over 24 hours. Turbine 2 T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krasnoyarsk Summer Time
Krasnoyarsk Time (KRAT) is the time zone seven hours ahead of UTC (UTC+07:00) and 4 hours ahead of Moscow Time (MSK+4). KRAT is the official time zone for central and east Siberian regions of Krasnoyarsk Krai, Kemerovo Oblast, Khakassia and Tuva. Novosibirsk Oblast used this time zone until 1993, when it was known as ''Novosibirsk Time'' (NOVT/NOVST). The Russian government renamed the time zone shortly after Novosibirsk opted for another time zone instead. Between 27 March 2011 and 25 October 2014, Krasnoyarsk Time was fixed at UTC+08:00. In 2016, the Altai Republic, Altai Krai, Novosibirsk Oblast, and Tomsk Oblast,{{Cite web , date=2016-04-20 , title=СФ одобрил перевод времени в Томской области на час вперед , url=https://aif.ru/society/sf_odobril_perevod_vremeni_v_tomskoy_oblasti_na_chas_vpered , access-date=2024-03-09 , website=AiF , language=ru switched to Krasnoyarsk Time from Omsk Time. IANA time zone database The IANA ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Izvestia
''Izvestia'' ( rus, Известия, r=Izvestiya, p=ɪzˈvʲesʲtʲɪjə, "The News") is a daily broadsheet newspaper in Russia. Founded in February 1917, ''Izvestia'', which covered foreign relations, was the organ of the Supreme Soviet of the Soviet Union, disseminating official state propaganda. It is now described as a "national newspaper" of Russia. The word ''wikt:известие#Russian, izvestiya'' in Russian means "bring news" or "tidings", "herald" (an official messenger bringing news), derived from the verb ''izveshchat'' ("to inform", "to notify"). History 1917–1991 During the Soviet period, while ''Pravda'' served as the official mouthpiece of the Communist Party of the Soviet Union, Communist Party, ''Izvestia'' expressed the official views of the Soviet government as published by the Presidium of the Supreme Soviet of the USSR. Its full name was ''Izvestija Sovjetov Narodnyh Djeputatov SSSR'' (in Russian, ''Известия Советов народных � ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bratsk Dam
The Bratsk Hydroelectric Power Station (also referred to as The ''50 years of Great October'' Dam) is a concrete gravity dam on the Angara River and adjacent hydroelectric power station. It is the second level of the Angara River hydroelectric station cascade in Irkutsk Oblast, Russia. From its commissioning in 1966, the station was the world's single biggest power producer until Krasnoyarsk Hydroelectric Power Station reached 5,000 MW (at 10 turbines) in 1971. Annually the station produces 22.6 TWh. Currently, the Bratsk Power Station operates 18 hydro-turbines, each with capacity of 250 MW, produced by the Leningrad Metal Works ("LMZ", , ) in the 1960s. Design and specifications Dam Components: * concrete wall 924 m long and 124.5 m high at its maximum (stationary part 515 m long, waterdrop part 242 m long, dumb part 167 m). * by-wall house 516 m long * riverbank concrete walls all 506 m long * right bank ground wall 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fatigue (material)
In materials science, fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing striations on some parts of the fracture surface. The crack will continue to grow until it reaches a critical size, which occurs when the stress intensity factor of the crack exceeds the fracture toughness of the material, producing rapid propagation and typically complete fracture of the structure. Fatigue has traditionally been associated with the failure of metal components which led to the term metal fatigue. In the nineteenth century, the sudden failing of metal railway axles was thought to be caused by the metal crystallising because of the brittle appearance of the fracture surface, but this has since been disproved. Most materials, such as composites, plastics and ceramics, seem to experience some sort of fatigue-related failure. To aid in predicting the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rostekhnadzor
The Federal Service for Environmental, Technological and Nuclear Supervision (Rostekhnadzor; ) is the supervisory body of the Government of Russia on ecological, technological, and nuclear issues. Its functions include the passage of regulatory legal acts, supervision and oversight in the field of environmental protection, limiting harmful technogenic impact (including the handling of industrial and consumer waste), safety when working with the subsoil (e.g., mining), protection of the subsoil, industrial safety, atomic energy safety (not including the development, preparation, testing, operation and use of nuclear weapons and military atomic facilities), the safety of electrical and thermal facilities and networks (except for household facilities and networks), the safety of hydraulic structures at industrial and energy sites; the safety of manufacturing, storage, and use of industrial explosives, and special state security functions in these areas. Russian Government Reso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kommersant
(, , ''The Businessman'' or Commerce Man, often shortened to Ъ) is a nationally distributed daily newspaper published in Russia mostly devoted to politics and business. The TNS Media and NRS Russia certified July 2013 circulation of the daily was 120,000–130,000. It is widely considered to be one of Russia's three main business dailies (together with '' Vedomosti'' and '' RBK Daily''). History The original ''Kommersant'' newspaper was established in Moscow in 1909, but was shut down by the Bolsheviks following the October Revolution in 1917. In 1989, with the onset of press freedom in Russia, was relaunched under the ownership of businessman and publicist Vladimir Yakovlev. The first issue was released in January 1990. It was modeled after Western business journalism. The newspaper's title is spelled in Russian with a terminal hard sign (ъ) – a letter that is silent at the end of a word in modern Russian, and was thus largely abolished by the post-revolution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Telegraph Agency Of Russia
The Russian News Agency TASS, or simply TASS, is a Russian state-owned news agency founded in 1904. It is the largest Russian news agency and one of the largest news agencies worldwide. TASS is registered as a Federal State Unitary Enterprise, owned by the government of Russia. Headquartered in Moscow, it has 70 offices in Russia and in the Commonwealth of Independent States (CIS), "along with 56 global branches in 53 countries". In the Soviet period, it was named the Telegraph Agency of the Soviet Union () and was the central agency of the Soviet government for news collection and distribution for all Soviet newspapers, radio and television stations. After the dissolution of the Soviet Union, it was renamed Information Telegraph Agency of Russia (ITAR-TASS) () in 1992, but reverted to the simpler TASS name in 2014. Currently, on a daily basis TASS is "publishing nearly 3,000 news items in six languages and about 700 photographs and videos from correspondents in Russia and acr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not designed to convey water. Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later. Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an intake tower is a structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Generator
In electricity generation, a generator, also called an ''electric generator'', ''electrical generator'', and ''electromagnetic generator'' is an electromechanical device that converts mechanical energy to electrical energy for use in an external circuit. In most generators which are rotating machines, a source of kinetic power rotates the generator's shaft, and the generator produces an electric current at its output terminals which flows through an external circuit, powering electrical loads. Sources of mechanical energy used to drive generators include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. Generators produce nearly all of the electric power for worldwide electric power grids. The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Introduction Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation, "EGR"). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Jack
A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic machinery, hydraulic power. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. Jacks are usually rated for a maximum lifting capacity (for example, 1.5 tons or 3 tons). Industrial jacks can be rated for many tons of Mechanical load, load. Etymology The personal name ''Jack'', which came into English usage around the thirteenth century as a nickname form of ''John'', came in the sixteenth century to be used as a colloquial word for 'a man (of low status)' (much as in the modern usage 'jack of all trades, master of none'). From here, the word was 'applied to things which in some way take the place of a lad or man, or save human labour'. The first attestation in the ''Oxford English Dictionary'' of ''jack'' in the sense 'a mach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gate (hydraulic Engineering)
In hydraulic engineering, a gate is a rotating or sliding structure, supported by hinges or by a rotating horizontal or vertical axis, that can be located at an extreme of a large pipe or canal in order to control the flow of water or any fluid from one side to the other. It is usually placed at the mouth of irrigation channels to avoid water loss or at the end of drainage channels to elude water entrance. Gate Valve When using a gate, one thing that is used in certain applications such as manufacturing, mining, and others is the gate valve. Fluids will run through the valve to help lubricate the moving parts of a machine, transmit power, close off openings to moving parts, and to assist evaporating the amount of heat coming through. These fluids will flow throughout the gate valve with little resistance to flow and there is additionally small drops in pressure. Within the gate valve, there is a gatelike disk that moves up and down perpendicular to the path of flow and seats agai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
