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Zaza Dam
The Zaza Dam is an embankment dam on the Zaza River about southwest of Sancti Spíritus in Sancti Spíritus Province, Cuba. The dam was completed in 1972 with the primary purpose of irrigation but it also supports a small hydroelectric power station. The dam's reservoir, Zaza Reservoir, has a storage capacity of , making it the largest in the country. Beginning in the 1990s, the Chinese government helped plan and install the hydroelectric power station. It contains two 1.35 MW Kaplan turbine The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to ach ...-generators. The first was commissioned in October 2008, the second in February 2009. References {{stack, {{Portal, Cuba, Water, Renewable energy Dams in Cuba Hydroelectric power stations in Cuba Dams completed in 1972 Energy infrastructu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sancti Spíritus
Sancti Spíritus () is a municipality and capital city of the province of Sancti Spíritus Province, Sancti Spíritus in central Cuba and one of the oldest Cuban European settlements. Sancti Spíritus is the genitive case of Latin language, Latin ''Sanctus Spiritus'' ("Holy Spirit"). History The city was founded by Diego Velázquez de Cuéllar in 1514. The city contributed men for Hernán Cortés' 1518 expedition to Mexico, including Alonso Hernandez Puertocarrero, Gonzalo de Sandoval, and Juan Velazquez de Leon.Diaz, B., 1963, The Conquest of New Spain, London: Penguin Books, Francisco Iznaga, a Basque people, Basque landowner in the western portion of Cuba during the first thirty years of the colonization of Cuba, was elected mayor of Bayamo in 1540. Iznaga was the originator of a powerful lineage which finally settled in Sancti Spíritus and Trinidad, where Torre Iznaga (Iznaga Tower) is. His descendants fought for the independence of Cuba and for annexation to the U.S., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sancti Spíritus Province
Sancti Spíritus () is one of the provinces of Cuba. Its capital is the identically named Sancti Spíritus. Another major city is Trinidad. Geography The southern coast of the province is flat, but the western portion of Sancti Spíritus province is mountainous. The southeast has numerous mangroves and swamps. The northern coast contains significant wetlands and protected areas such as the Bay of Buena Vista and the Caguanes National Park. The largest man made reservoir in Cuba, the Embalse Zaza, is in Sancti Spíritus province. History During the 17th century, both Dutch and British pirates attempted to take control of what is today Sancti Spíritus province, but with little success, as the Spanish garrison held them off. From 1660 to 1680, Trinidad was plagued by pirates from Jamaica and Tortuga, and on two occasions, pirates razed the city. The provinces of Cienfuegos, Sancti Spíritus, and Villa Clara were once all part of the now defunct province of Las Villas. Economy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaza Reservoir
Zaza Reservoir ( es, Embalse Zaza, La Presa Zaza) is the largest man-made reservoir in Cuba. It is located in the Sancti Spíritus Province in central Cuba, south-east of the city of Sancti-Spíritus and north-west of La Sierpe. It has a water mirror area of . and an average volume of 750,000,000 m³. Overview It was developed on the course of the Zaza River, which flows from Sierra del Escambray to the Tunas Channel in the Caribbean Sea and is Cuba's second longest river (after Rio Cauto). Other rivers that empty into the reservoir include the Yayabo, Taguasco and Tuinucú Rivers. The Zaza Dam was built over a 3-year period and was completed on December 7, 1971, at a cost of 27 million Cuban pesos. A hydroelectric plant was subsequently added in 1978. The water of the reservoir is used to irrigate the farmlands to the south all the way to the Caribbean coast. Fishing (both leisure and commercial) is also an important activity on the reservoir. One of the largest fresh wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaplan-type
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level. The Kaplan turbine was an evolution of the Francis turbine. Its invention allowed efficient power production in low-head applications which was not possible with Francis turbines. The head ranges from and the output ranges from 5 to 200 MW. Runner diameters are between . Turbines rotate at a constant rate, which varies from facility to facility. That rate ranges from as low as 54.5 rpm (Albeni Falls Dam) to 450 rpm. Kaplan turbines are now widely used throughout the world in high-flow, low-head power production. Development Viktor Kaplan, living in Brünn, Austria-Hungary (now Brno, Czechia), obtained his first patent for an adjustable blade propeller turbine in 1912. But t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embankment Dam
An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core. This makes the dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance. Types Embankment dams come in two types: the earth-filled dam (also called an earthen dam or terrain dam) made of compacted earth, and the rock-filled dam. A cross-section of an embankment dam shows a shape like a bank, or hill. Most have a central section or core composed of an impermeable material to stop water from seeping through the dam. The core can be of clay, concrete, or asphalt concrete. This type of dam is a good choice for sites wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaza River
Zaza may refer to: Ethnic group * Zazas, a group of people in eastern Anatolia (southeastern Turkey) * Zaza–Gorani languages, Indo-Iranian languages ** Zaza language, spoken by the Zazas People Given name * Zaza Sor. Aree (born 1993), Thai kickboxer * Zaza Burchuladze (born 1973), Georgian novelist and dramatist * Zaza Chelidze (born 1987), Georgian football player * Zaza Chkhaidze (born 1974), Georgian major general * Zaza Eloshvili (1964–2001), Georgian footballer * Zaza Enden (born 1976), Turkish professional wrestler * Zaza Gogava (born 1971), Georgian Major General * Zaza Gorozia (born 1975), Georgian politician * Zaza Harvey (1879–1954), American baseball player * Zaza Janashia (born 1976), Georgian footballer * Zaza Kedelashvili (born 1985), Georgian judoka * Zaza Kolelishvili (born 1957), Georgian actor, film director and artist * Zaza Korinteli (aka Zumba; born 1973), Georgian rock musician, folklorist and civic activist * ZaZa Maree (born 1997), American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuba
Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both the American state of Florida and the Bahamas, west of Hispaniola ( Haiti/Dominican Republic), and north of both Jamaica and the Cayman Islands. Havana is the largest city and capital; other major cities include Santiago de Cuba and Camagüey. The official area of the Republic of Cuba is (without the territorial waters) but a total of 350,730 km² (135,418 sq mi) including the exclusive economic zone. Cuba is the second-most populous country in the Caribbean after Haiti, with over 11 million inhabitants. The territory that is now Cuba was inhabited by the Ciboney people from the 4th millennium BC with the Gua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric
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] |
Kaplan Turbine
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level. The Kaplan turbine was an evolution of the Francis turbine. Its invention allowed efficient power production in low-head applications which was not possible with Francis turbines. The head ranges from and the output ranges from 5 to 200 MW. Runner diameters are between . Turbines rotate at a constant rate, which varies from facility to facility. That rate ranges from as low as 54.5 rpm (Albeni Falls Dam) to 450 rpm. Kaplan turbines are now widely used throughout the world in high-flow, low-head power production. Development Viktor Kaplan, living in Brünn, Austria-Hungary (now Brno, Czechia), obtained his first patent for an adjustable blade propeller turbine in 1912. But t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Cuba
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] |
Hydroelectric Power Stations In Cuba
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] |
