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Mequinenza Dam
Mequinenza Dam ( es, Presa de Mequinenza, links=no) is a concrete gravity dam in the province of Zaragoza, Spain. It impounds the Ebro creating a large reservoir, which is called ''Mar de Aragón''. About 35 km downstream of Mequinenza dam is Ribarroja dam. ''Empresa Nacional Hidroeléctrica del Ribagorzana S.A.'' ( ENHER) was mandated in 1955 by ''Instituto Nacional de Industria (INI)'' to build two dams on the Ebro near Mequinenza and Ribarroja. Work on Mequinenza dam started in 1957. The filling of the reservoir began in December 1965. The power plant was operational in 1964 (1966). ENHER was acquired by Endesa in 1999. Dam Mequinenza Dam is a 79 m tall (height above foundation) and 461 m long gravity dam with a crest altitude of 124 m. The volume of the dam is 1,100,000 m³. The dam features a spillway with 6 gates over the dam (maximum discharge 11,000 m³/s) and one bottom outlet (maximum discharge 160 m³/s). Reservoir At full reservoir level of 121 m.a.s.l. the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaragoza (province)
Zaragoza (), also called Saragossa in English,''Encyclopædia Britannica''Zaragoza (conventional Saragossa)/ref> is a province of northern Spain, in the central part of the autonomous community of Aragon. Its capital is Zaragoza, which is also the capital of the autonomous community. Other towns in Zaragoza include Calatayud, Borja, La Almunia de Doña Godina, Ejea de los Caballeros and Tarazona. Its area is 17,274 km2 and it is the fourth-largest Spanish province by land area. Its population was 954,811 in 2018, accounting for slightly over 72% of the entire population of Aragon; nearly 75% of those lived in the capital. Its population density was 51/km2. It contains 292 municipalities, of which more than half are villages with fewer than 300 people. The main language throughout the province is Spanish (with official status), although Catalan is spoken in the Bajo Aragón-Caspe comarca and in Mequinenza municipality. Geography The province of Zaragoza is bordered by the prov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metres Above Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called "feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1964
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) 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). Common 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, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1964
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 earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. 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. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dams
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power Stations In Spain
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of 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. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Spain
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 earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. 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. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El País
''El País'' (; ) is a Spanish-language daily newspaper in Spain. ''El País'' is based in the capital city of Madrid and it is owned by the Spanish media conglomerate PRISA. It is the second most circulated daily newspaper in Spain . ''El País'' is the most read newspaper in Spanish online and one of the Madrid dailies considered to be a national newspaper of record for Spain (along with '' El Mundo'' and ''ABC)''. In 2018, its number of daily sales were 138,000. Its headquarters and central editorial staff are located in Madrid, although there are regional offices in the principal Spanish cities (Barcelona, Seville, Valencia, Bilbao, and Santiago de Compostela) where regional editions were produced until 2015. ''El País'' also produces a world edition in Madrid that is available online in English and in Spanish (Latin America). History ''El País'' was founded in May 1976 by a team at PRISA which included Jesus de Polanco, José Ortega Spottorno and Carlos Mendo. The p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiMapia
Wikimapia is a geographic online encyclopedia project. The project implements an interactive "clickable" web map that utilizes Google Maps with a geographically-referenced wiki system, with the aim to mark and describe all geographical objects in the world. Wikimapia was created by Alexandre Koriakine and Evgeniy Saveliev in May 2006. The data, a crowdsourced collection of places marked by registered users and guests, has grown to just under 28,000,000 objects , and is released under the Creative Commons license, Creative Commons License Attribution-ShareAlike (CC BY-SA). Although the project's name is reminiscent of that of Wikipedia, and the creators share parts of the "wiki" philosophy, it is not a part of the non-profit Wikimedia Foundation family of wikis. Since 2018, following years of declining popularity, the site has gone nearly inactive with the site's owners having been unable to pay for the usage of Google Maps and the site's social media accounts having remained de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Dams And Reservoirs In Spain
This is a list of dams and reservoirs in Spain by administrative division. Andalusia Aragon Asturias Balearic Islands Basque Country Canary Islands Cantabria Castile-La Mancha * Alarcón Dam * Entrepeñas Reservoir Castile and León * Aldeadávila Dam *Almendra Dam * El Burguillo Reservoir * El Charco del Cura Reservoir * San Juan Reservoir *Saucelle Dam Catalonia Extremadura *Alcántara Dam * Arrocampo Reservoir *Cíjara Dam *García Sola Reservoir * La Serena Reservoir *Valdecañas reservoir * Zújar Reservoir Galicia * Lake As Pontes La Rioja Madrid *El Atazar Dam * Navacerrada Dam * San Juan Reservoir Region of Murcia Region of Navarre Valencian Community * Arenós Reservoir * Don Francisco Mira Cánovas Dam *Tibi Dam *Ulldecona Dam See also *List of dams and reservoirs * List of submerged places in Spain {{Dams and Reservoirs Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).sv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In Spain
This is a list of power stations in Spain. Hydroelectric Nuclear Solar Wind Fossil fuels See also * Energy policy of the European Union * List of power stations in Europe * List of largest power stations in the world * Electricity Network of the Balearic Islands References {{DEFAULTSORT:Power Stations In Spain Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ... List Lists of buildings and structures in Spain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 for d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
