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Orphey Hydroelectric Power Station
The Orphey Pumpted Storage Hydro Power Plant () is an active hydro power project near Krichim in the Rhodope Mountains, southern Bulgaria. It has 4 individual Francis turbines which deliver up to 164.8 MW of power. One of the turbines can be used as a pump as well (38 MW), making this power plant a type. The power plant uses water from the along the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgaria
Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey to the south, Serbia and North Macedonia to the west, and Romania to the north. It covers a territory of and is the tenth largest within the European Union and the List of European countries by area, sixteenth-largest country in Europe by area. Sofia is the nation's capital and List of cities and towns in Bulgaria, largest city; other major cities include Burgas, Plovdiv, and Varna, Bulgaria, Varna. One of the earliest societies in the lands of modern-day Bulgaria was the Karanovo culture (6,500 BC). In the 6th to 3rd century BC, the region was a battleground for ancient Thracians, Persians, Celts and Ancient Macedonians, Macedonians; stability came when the Roman Empire conquered the region in AD 45. After the Roman state splintered, trib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krichim
Krichim ( ) is a town in Bulgaria, located in the southwestern part of Plovdiv Province close to Perushtitsa. It lies at the foot of the Rhodopes' northern slopes in the plains of Thrace, 20 km southwest of Plovdiv. The river Vacha, an important tributary of the Maritsa, runs through the town. Krichim is the only place in Krichim Municipality. Inhabited since early Byzantine times as evidenced by the remains of two ancient fortresses on both banks of the river in the beginning of its gorge, Krichim was contested by the Byzantine Empire and the Bulgarian Empire during most of the Middle Ages. It was conquered by Tsar Ivan Asen II in 1230 and a stone inscription from this period is preserved, saying 'On this stone sat Tsar Asen, when he conquered Krichim'. During the early Bulgarian National Revival, the village was one of the few in the region to have a monastery school. Two monasteries, one of the Holy Theotokos and one of St Vrach, worked during the Ottoman rule and hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEK EAD
Natsionalna Elektricheska Kompania EAD (NEK) () is a single-owned joint-stock electric company headquartered in Sofia, Bulgaria. Bulgarian Energy Holding is the holder of the capital of NEK. The main company's activities are generation and trade of electrical energy. NEK is the owner of 31 hydro and pumped storage power plant 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 ...s with a total installed capacity of 2737 MW. Most of the hydropower is generated within four hydropower cascades: Belmeken-Sestrimo-Chaira; Batak, Vacha, and Dolna Arda. All are used to cover peak loads, and to regulate the grid system. NEK is a holder of hydro (HPP&PSHPP) generation license, electricity trading license and public power supply license, all issued by EWRC. NEK, through its branch Dams and Cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacha Reservoir
Vacha Reservoir ( Yazovir Vacha; before 1999: Antonivanovtsi Reservoir) is a body of water associated with a dam in Devin Municipality, south Bulgaria. It is part of the Dospat–Vacha Hydropower Cascade (500.2 MW) involving four more dams and seven power stations. The three other existing dams on the Vacha River are the Krichim Dam, the Tsankov Kamak Hydro Power Plant, Tsankov Kamak Dam and the Teshel Hydro Power Plant, Teshel Dam. Completed on 5 November 1975, the Vacha Dam is situated above mean sea level, above sea level. The dam was designed by Bulgarian hydroengineers, though their work was overseen by Russian, Japanese and Italy, Italian experts. It is a concrete gravity structure of height, making it the tallest dam in Bulgaria together with Krichim Dam. Its pumped storage power plant has a capacity of 160 MW. History The potential of hydroelectric projects on the Vacha River in southern Bulgaria was recognized by the Bulgarian government at least as early as the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
The watt (symbol: W) is the unit of Power (physics), 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 quantification (science), quantify the rate of Work (physics), energy transfer. The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish people, Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own Watt steam engine, steam engine in 1776, which became fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one meter per second against a constant opposing force of one Newton (unit), newton, the rate at which Work (physics), 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 vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodope Mountains
The Rhodopes (; , ; , ''Rodopi''; ) are a mountain range in Southeastern Europe, and the largest by area in Bulgaria, with over 83% of its area in the southern part of the country and the remainder in Greece. Golyam Perelik is its highest peak at . The mountain range gives its name to the terrestrial ecoregion Rodope montane mixed forests that belongs in the temperate broadleaf and mixed forests biome and the Palearctic realm. The region is particularly notable for its karst areas with their deep river gorges, large caves and specific sculptured forms, such as the Trigrad Gorge. A significant part of Bulgaria's hydropower resources are located in the western areas of the range. There are a number of hydro-cascades and dams used for electricity production, irrigation, and as tourist destinations. Name and mythology The name of the Rhodope Mountains is of Thracian origin. Rhod-ope (Род-oпа) is interpreted as the first name of a river, meaning "rusty/reddish river", wher ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumped Storage
Pumping may refer to: * The operation of a pump, for moving a liquid from one location to another **The use of a breast pump A breast pump is a mechanical device that Lactation, lactating women use to milking, extract milk from their breasts. They may be manual devices powered by hand or foot movements or automatic devices powered by electricity. Breast pumps come in sev ... for extraction of milk * Pumping (audio), a creative misuse of dynamic range compression * Pumping (computer systems), the number of times data is transmitted per clock cycle * Pumping (oil well), injecting chemicals into a wellbore * Pumping (noise reduction), an unwanted artifact of some noise reduction systems * Pumping lemma, in the theory of formal languages * Gastric lavage, cleaning the contents of the stomach * Optical pumping, in which light is used to raise electrons from a lower energy level to a higher one * Pump (skateboarding), accelerating without pushing off of the ground * "Pumping" (M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacha (river)
The Vacha () is a river in southern Bulgaria, a right tributary of the river Maritsa. The 112 km long Vacha is the 23rd longest river of Bulgaria and the second longest in the Rhodope Mountains, following the Arda (Maritsa tributary), Arda (272 km), another major Maritsa tributary. The Vacha drains significant area of the western Rhodope Mountains, including the ridges Batak Mountain, Veliyshko–Videnishki, Pereliksko–Prespanski and Chernatitsa. Geography The Buynovska reka is considered the main stem of the river and takes its source at an altitude of 1,558 m in the western Rhodope Mountains at 3.4 km southeast of the village of Kozhari, in the immediate vicinity of the border between Bulgaria and Greece. The main river is formed at the confluence of the Buynovska reka (left) and the Chairdere (right) at an altitude of 847 m in the village of Teshel. In its uppermost course it flows in a northwestern direction in a wide valley, covered with meadows, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dospat–Vacha Hydropower Cascade
The Dospat–Vacha Hydroelectric Cascade () is situated in the western Rhodope Mountains of southern Bulgaria, on the territory of the Smolyan Province, Smolyan, Pazardzhik Province, Pazardzhik and Plovdiv Provinces. It is owned by the NEK EAD, National Electricity Company. The cascade was constructed between 1963 and 2010 by "Hydrostroy". With catchment area of 2,083 km2 spanning from an altitude of 2,191 m at the summit of Golyam Perelik to 420 m at the Krichim Reservoir, it is among Bulgaria's most complex hydropower systems. The cascade receives water from several river drainages, mostly from the Nestos (river), Mesta, the Dospat (river), Dospat and the Vacha (river), Vacha. It includes five reservoirs and seven hydro power plants — Teshel Hydro Power Plant, Teshel, Devin Hydro Power Plant, Devin, Tsankov Kamak Hydro Power Plant, Tsankov Kamak, Orphey Hydroelectric Power Station, Orphey, Krichim Hydro Power Plant, Krichim and Vacha 1 and 2, with a combined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orpheus
In Greek mythology, Orpheus (; , classical pronunciation: ) was a Thracians, Thracian bard, legendary musician and prophet. He was also a renowned Ancient Greek poetry, poet and, according to legend, travelled with Jason and the Argonauts in search of the Golden Fleece, and descended into the Greek underworld, underworld to recover his lost wife, Eurydice. The major stories about him are centered on his ability to charm all living things and even stones with his music (the usual scene in Orpheus mosaics), his attempt to retrieve his wife Eurydice from the underworld, and his death at the hands of the maenads of Dionysus, who got tired of his mourning for his late wife Eurydice. As an archetype of the inspired singer, Orpheus is one of the most significant figures in the classical reception studies, reception of classical mythology in Western culture, portrayed or allusion, alluded to in countless forms of art and popular culture including poetry, film, opera, music, and painting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power Stations In Bulgaria
Hydroelectricity, or hydroelectric power, is 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 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] |
