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Régua Dam
Régua Dam ( pt, Barragem da Régua, links=no) is a concrete gravity dam on the Douro, where the river forms the border line between the districts of Vila Real and Viseu. It is located in the municipality Peso da Régua, in Vila Real District, Portugal. Construction of the dam began in 1965. The dam was completed in 1973. It is owned by ''Companhia Portuguesa de Produção de Electricidade'' (CPPE). Dam Régua Dam is a 41 m tall (height above foundation) and 350 m long gravity dam with a crest altitude of 81 m. The volume of the dam is 108,000 m³. The spillway with 5 radial gates is part of the dam body (maximum discharge 21,500 m³/s). There is also a bottom outlet. Reservoir At full reservoir level of 73.5 m the reservoir of the dam has a surface area of 8.5 km2 and a total capacity of 95 mio. m³. The active capacity is 12 (13) mio. m³. Power plant The run-of-the-river hydroelectric power plant was commissioned in 1973. It is operated by EDP. The plant has a namepl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, and its Iberian portion is bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal. Its two archipelagos form two autonomous regions with their own regional governments. Lisbon is the capital and largest city by population. Portugal is the oldest continuously existing nation state on the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times. It was inhabited by pre-Celtic and Celtic peoples who had contact with Phoenicians and Ancient Greek traders, it was ruled by the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volt-ampere
A volt-ampere ( SI symbol: V⋅A or V A, simplified as VA) is the unit for the apparent power in an electrical circuit. The apparent power equals the product of root mean square voltage (in volts) and root mean square current (in amperes). Volt-amperes are usually used for analyzing alternating current (AC) circuits. In direct current (DC) circuits, this product is equal to the real power, in watts. The volt-ampere is dimensionally equivalent to the watt: in SI units, 1 V⋅A = 1 W). VA rating is most used for generators and transformers (and other power handling equipment) where loads may be reactive (inductive or capacitive). Formulation For a simple electrical circuit running on direct current, the electrical current and voltage are constant. In that case, the real power (''P'', measured in watts) is the product of the electrical current (''I'', measured in amperes) and the voltage from one side of the circuit to the other (''V'', measured in volts): ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Vila Real District
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1973 Establishments In Portugal
Events January * January 1 - The United Kingdom, the Republic of Ireland and Denmark enter the European Economic Community, which later becomes the European Union. * January 15 – Vietnam War: Citing progress in peace negotiations, U.S. President Richard Nixon announces the suspension of offensive action in North Vietnam. * January 17 – Ferdinand Marcos becomes President for Life of the Philippines. * January 20 – Richard Nixon is sworn in for a second term as President of the United States. Nixon is the only person to have been sworn in twice as President (1969, 1973) and Vice President of the United States (1953, 1957). * January 22 ** George Foreman defeats Joe Frazier to win the heavyweight world boxing championship. ** A Royal Jordanian Boeing 707 flight from Jeddah crashes in Kano, Nigeria; 176 people are killed. * January 27 – U.S. involvement in the Vietnam War ends with the signing of the Paris Peace Accords. February * February 8 – A milit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1973
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 1973
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 Portugal
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 Portugal
This page is a list of dams and reservoirs in Portugal, arranged by NUTS Regions and Subregions: Norte Alto Tâmega * Alto Tâmega Dam * Daivões Dam * Gouvães Dam Cávado * Caniçada Dam, Parada do Bouro, Vieira do Minho * Salamonde Dam, Salamonde, Vieira do Minho * Vilarinho das Furnas Dam, Campo do Gerês, Terras de Bouro Douro * Cuerda del Pozo Dam * Los Rábanos Dam * San José Dam * Villalcampo Dam * Castro Dam * Miranda Dam * Picote Dam * Bemposta Dam * Aldeadávila Dam * Saucelle Dam * Pocinho Dam * Valeira Dam São João da Pesqueira, São João da Pesqueira * Régua Dam * Carrapatelo Dam, Santa Cristina, Mesão Frio * Crestuma–Lever Dam * Bagaúste Dam, Peso da Régua, Peso da Régua Grande Porto * Crestuma–Lever Dam, Foz do Sousa, Gondomar Minho-Lima * Alto Lindoso Dam, Lindoso, Ponte da Barca Centro Beiras e Serra da Estrela * Sabugal Dam, Sabugal, Sabugal * Barragem Marques da Silva, Seia Beira Baixa * Cabril Dam, Sertã * Fratel Dam, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Dams And Reservoirs In Portugal
This page is a list of dams and reservoirs in Portugal, arranged by NUTS Regions and Subregions: Norte Alto Tâmega * Alto Tâmega Dam * Daivões Dam * Gouvães Dam Cávado * Caniçada Dam, Parada do Bouro, Vieira do Minho * Salamonde Dam, Salamonde, Vieira do Minho * Vilarinho das Furnas Dam, Campo do Gerês, Terras de Bouro Douro * Cuerda del Pozo Dam * Los Rábanos Dam * San José Dam * Villalcampo Dam * Castro Dam * Miranda Dam * Picote Dam * Bemposta Dam * Aldeadávila Dam * Saucelle Dam * Pocinho Dam * Valeira Dam São João da Pesqueira, São João da Pesqueira * Régua Dam * Carrapatelo Dam, Santa Cristina, Mesão Frio * Crestuma–Lever Dam * Bagaúste Dam, Peso da Régua, Peso da Régua Grande Porto * Crestuma–Lever Dam, Foz do Sousa, Gondomar Minho-Lima * Alto Lindoso Dam, Lindoso, Ponte da Barca Centro Beiras e Serra da Estrela * Sabugal Dam, Sabugal, Sabugal * Barragem Marques da Silva, Seia Beira Baixa * Cabril Dam, Sertã * Fratel Dam, V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In Portugal ...
The following page lists some power stations in Portugal. Cogeneration Geothermal Hydroelectric Thermal See also * List of power stations in Europe * List of largest power stations in the world References {{commons category, Power plants in Portugal Portugal 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 generation of electric power. Power stations are generally connected to an electrical grid. Many po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock (water Transport)
A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself (usually then called a caisson) that rises and falls. Locks are used to make a river more easily navigable, or to allow a canal to cross land that is not level. Later canals used more and larger locks to allow a more direct route to be taken. Pound lock A ''pound lock'' is most commonly used on canals and rivers today. A pound lock has a chamber with gates at both ends that control the level of water in the pound. In contrast, an earlier design with a single gate was known as a flash lock. Pound locks were first used in China during the Song Dynasty (960–1279 AD), having been pioneered by the Song politician and naval en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
