Turkwel Hydro Power Plant
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Turkwel Hydro Power Plant
The Turkwel Hydroelectric Power Station, also Turkwel Dam, is an arch dam on the Turkwel River about north of Lorokon in West Pokot County, Kenya. The dam serves several purposes, including hydroelectric power production, irrigation, tourism and fisheries. It was constructed between 1986 and 1991. It supports the third largest hydroelectric power plant in the country, having an installed electric capacity of . The dam, Kenya's tallest, has a height of , a crest length of 150 m, a dam volume of and retains a water volume of . The power station is underground power station, located underground, downstream, and contains two 56 MW Francis turbine generators. The difference in elevation between the reservoir and power station affords a net hydraulic head of . See also * List of power stations in Kenya * List of hydropower stations in Africa References External links

*{{Structurae , id = 20009251 , title = Turkwel Dam , accessdate = Energy infrastructure completed in 1 ...
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Kenya
Kenya, officially the Republic of Kenya, is a country located in East Africa. With an estimated population of more than 52.4 million as of mid-2024, Kenya is the 27th-most-populous country in the world and the 7th most populous in Africa. Kenya's capital and largest city is Nairobi. Its second-largest and oldest city is Mombasa, a major port city located on Mombasa Island. Other major cities within the country include Kisumu, Nakuru & Eldoret. Going clockwise, Kenya is bordered by South Sudan to the northwest (though much of that border includes the disputed Ilemi Triangle), Ethiopia to the north, Somalia to the east, the Indian Ocean to the southeast, Tanzania to the southwest, and Lake Victoria and Uganda to the west. Kenya's geography, climate and population vary widely. In western, rift valley counties, the landscape includes cold, snow-capped mountaintops (such as Batian, Nelion and Point Lenana on Mount Kenya) with vast surrounding forests, wildlife and ...
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Francis Turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency. The process of arriving at the modern Francis runner design took from 1848 to approximately 1920. It became known as the Francis turbine around 1920, being named after British-American engineer James B. Francis who in 1848 created a new turbine design. Francis turbines are primarily used for producing electricity. The power output of the electric generators generally ranges from just a few kilowatts up to 1000 MW, though mini-hydro installations may be lower. The best performance is seen when the head height is between . Penstock diameters are between . The speeds of different turbine units range from 70 to 1000  rpm. A wicket gate around the outside of the turbine's rotating runner controls the rate of water flow through the turbine ...
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Underground Power Stations
Underground most commonly refers to: * Subterranea (geography), the regions beneath the surface of the Earth Underground may also refer to: Places * Buenos Aires Underground, a rapid transit system * London Underground, a rapid transit system * The Underground (Boston), a music club in the Allston neighborhood of Boston * The Underground (Stoke concert venue), a club/music venue based in Hanley, Stoke-on-Trent * Underground (Manhattan), a music club (1980—1989) in Manhattan * Underground Atlanta, a shopping and entertainment district in the Five Points neighborhood of downtown Atlanta, Georgia * Underground City, Montreal * Underground city, a series of linked subterranean spaces * Underground living, modes of living below the ground's surface Arts, entertainment, and media Films * ''Underground'' (1928 film), a drama by Anthony Asquith * ''Underground'' (1941 film), a war drama by Vincent Sherman * ''Underground'' (1970 film), a war drama starring Robert Goulet * ''Under ...
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Dams Completed In 1991
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. Ancient dams were built in Mesopotamia and the Middle East for water control. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. Egyptians also built dams, ...
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Arch Dams
An arch is a curved vertical structure spanning an open space underneath it. Arches may support the load above them, or they may perform a purely decorative role. As a decorative element, the arch dates back to the 4th millennium BC, but structural load-bearing arches became popular only after their adoption by the Ancient Romans in the 4th century BC. Arch-like structures can be horizontal, like an arch dam that withstands the horizontal hydrostatic pressure load. Arches are usually used as supports for many types of vaults, with the barrel vault in particular being a continuous arch. Extensive use of arches and vaults characterizes an arcuated construction, as opposed to the trabeated system, where, like in the architectures of ancient Greece, China, and Japan (as well as the modern steel-framed technique), posts and beams dominate. Arches had several advantages over the lintel, especially in the masonry construction: with the same amount of material it can have larger ...
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Hydroelectric Power Stations In Kenya
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants.
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Energy Infrastructure Completed In 1991
Energy () is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, the internal energy contained within a thermodynamic system, and rest energy associated with an object's rest mass. These are not mutually exclusive. All living organisms constantly take in and release energy. The Earth's climate and ecosystems processes are driven pri ...
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List Of Hydropower Stations In Africa
This is a list of articles listing power stations around the world by countries or regions. A power station (also referred to as a generating station, power plant, powerhouse or generating plant) is an industrial place for the generation of electric power. Africa * List of power stations in Algeria * List of power stations in Angola * List of power stations in Benin * List of power stations in Botswana * List of power stations in Burkina Faso * List of power stations in Burundi * List of power stations in Cameroon * List of power stations in Chad * List of power stations in the Democratic Republic of the Congo * List of power stations in Djibouti * List of power stations in Egypt * List of power stations in Equatorial Guinea * List of power stations in Eritrea * List of power stations in Eswatini * List of power stations in Ethiopia * List of power stations in Gabon * List of power stations in Ghana * List of power stations in Guinea * List of power stations in Ivory ...
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List Of Power Stations In Kenya
The following page lists power stations in Kenya. Geothermal Hydroelectric Fossil fuels: oil, coal, and gas Wind Solar See also *Energy in Kenya * List of largest power stations in the world * List of power stations in Africa References External links Kenya Electricity Hydro-Power Generation to Fall to 45% in 2014 {{Power stations Kenya Power stations A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electr ...
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Hydraulic Head
Hydraulic head or piezometric head is a measurement related to liquid pressure (normalized by specific weight) and the liquid elevation above a vertical datum., 410 pages. See pp. 43–44., 650 pages. See p. 22, eq.3.2a. It is usually measured as an equivalent liquid surface elevation, expressed in units of length, at the entrance (or bottom) of a piezometer. In an aquifer, it can be calculated from the depth to water in a piezometric well (a specialized water well), and given information of the piezometer's elevation and screen depth. Hydraulic head can similarly be measured in a column of water using a standpipe piezometer by measuring the height of the water surface in the tube relative to a common datum. The hydraulic head can be used to determine a ''hydraulic gradient'' between two or more points. Definition In fluid dynamics, the ''head'' at some point in an incompressible (constant density) flow is equal to the height of a static column of fluid whose pressure at ...
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Underground Power Station
An underground power station is a type of hydroelectric power station constructed by excavating the major components (e.g. machine hall, penstocks, and tailrace) from rock, rather than the more common surface-based construction methods. One or more conditions impact whether a power station is constructed underground. The terrain or geology around a dam is taken into consideration, as gorges or steep valleys may not accommodate a surface power station. A power station within bedrock may be less expensive to construct than a surface power station on loose soil. Avalanche-prone valleys often make a surface station unfeasible as well. After World War II, large hydroelectric power stations were placed underground more often in order to protect them from airstrikes. Often underground power stations form part of pumped storage hydroelectricity schemes, whose basic function is to level load: they use cheap or surplus off-peak power to pump water from a lower lake to an upper lake. During ...
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