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Zhikong Dam
The Zhikong Hydro Power Station (), is a reservoir and power station on the Lhasa River in Maizhokunggar County to the east of Lhasa, Tibet, China. It came into operation in 2007, and has a capacity of 100 MW. Description The Zhikong Hydro Power Station lies between the middle and lower reaches of the Lhasa River, also called the Kyi River. It is about northeast of Lhasa, in Maizhokunggar County. It is at an elevation of above sea level, downstream from the 160 MW Pangduo Hydro Power Station at . The Zhikong Dam, a rock-fill dam, is tall. It impounds of water. The plant has four 25 MW Francis turbines supplied by Kunming, and is operated by the China Huaneng Group. Installed capacity is 100 MW and annual production is about 407 GWh. The reservoir is also used for flood control and irrigation. Construction The Lhasa River Zhi Kong hydroelectric power station was a key project of the tenth five-year plan. Construction began in May 2003, with the No 8 Hydroelectr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maizhokunggar County
Maizhokunggar County or Meldro Gungkar County is a county of Lhasa and east of the main center of Chengguan, Tibet Autonomous Region. It has an area of with an average elevation of over . Most of the people are ethnic Tibetan and are engaged in agriculture or herding. Mining is a major source of tax revenue, but has created environmental problems. The county has various tourist attractions including hot springs and the Drigung Monastery. Geography ''Meldro Gungkar'' means "The Place where Nagaraja Meldro lived" in Tibetan. "Mozhugongka" means a town at the end of the earth. It is a twin city of Nanjing. The county is located on the middle and upper sections of the Lhasa River (or Kyi River) and the west of Mila Mountain. The Gyama Zhungchu, which runs through Gyama Township, is a tributary of the Lhasa River. Mila (or Mira) Mountain, at , forms the watershed between the Lhasa River and the Nyang River. The tree line on the north-facing slope of Mt. Mila is at . Mozhugongka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Armed Police
) , abbreviation = PAP ("People's Armed Police") CAPF ("Chinese Armed Police Force"), formerly abbreviated''Wujing'' ( zh , s = 武警 , p = Wǔjǐng , l = Armed Police , labels = no ), or WJ as on vehicle license plates , patch = PAP Armband.svg , patchcaption = Armband of the People's Armed Police , logo = Emblem of PAP Helicopter.svg , logocaption = Emblem of People's Armed Police helicopters , badge = PAP Badge.png , badgecaption = (since 1 August 2021) , flag = People's Armed Police Flag.svg , flagcaption = Flag of the People's Armed Police Force , imagesize = , motto = , mottotranslated = (Serve the People) , formed = , preceding1 = , dissolved = , superseding = , employees = 1.5 million , budget = , legalpersonality = Paramilitary organisation, law enforcement organisation , country = Chin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2007 Establishments In China
7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube. As an early prime number in the series of positive integers, the number seven has greatly symbolic associations in religion, mythology, superstition and philosophy. The seven Classical planets resulted in seven being the number of days in a week. It is often considered lucky in Western culture and is often seen as highly symbolic. Unlike Western culture, in Vietnamese culture, the number seven is sometimes considered unlucky. It is the first natural number whose pronunciation contains more than one syllable. Evolution of the Arabic digit In the beginning, Indians wrote 7 more or less in one stroke as a curve that looks like an uppercase vertically inverted. The western Ghubar Arabs' main contribution was to make the longer line diagonal rather than straight, though they showed some tendencies to making the digit more rectilinear. The eastern Arabs developed the digit fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 2007
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 Tibet
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 China
Dams and reservoirs in China are numerous and have had a profound effect on the country's development and people. According to the World Commission on Dams in 2000, there were 22,104 dams over the height of operating in China. Of the world's total large dams, China accounts for the most – of them; of which are used for irrigation. Accordingly, the oldest in China still in use belongs to the Dujiangyan Irrigation System which dates back to 256 BC. In 2005, there were over 80,000 reservoirs in the country and over 4,800 dams completed or under construction that stands at or exceed in height. As of 2007, China is also the world's leader in the construction of large dams; followed by Turkey, and Japan in third. The tallest dam in China is the Jinping-I Dam at , an arch dam, which is also the tallest dam in the world. The largest reservoir is created by the Three Gorges Dam, which stores 39.3 billion m3 (31,900,000 acre feet) of water and has a surface area of . Three Gorges is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In The Brahmaputra River Basin
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] |
Reservoirs And Dams In Tibet
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley, and rely on the natural topography to provide most of the basin of the res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamdrok Hydropower Station
The Yamdrok Hydropower Station (), also known as the Yamdrok Yumtso or Yamzhog Yumcog hydropower station, is a hydroelectric power station just north of Yamdrok Lake, about southwest of Qüxü. The power station is in the Lhoka (Shannan) Prefecture of the Tibet Autonomous Region, China. Opposition to using the lake, considered holy, delayed construction at first. The project ran into difficulties and was two years late, completed in 1998. Water is taken from the natural lake through long tunnels, without the need for a dam, and the power station discharges it into the Yarlung Tsangpo River. The design is a pumped-storage system, where off-peak power from other generators on the grid is used to pump water back into the lake when power is not needed. However, the river water has high levels of sediment and nitrates compared to the lake, and lower levels of minerals. Pumping may upset the lake's ecosystem, while not pumping may drain it. Plans Yamdrok Tso is the largest freshwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Huaneng Group
China Huaneng Group Co., Ltd., abbreviated as CHNG or Huaneng Group, is one of the five largest state-owned enterprise, state-owned electricity generation enterprises in China, administrated by the State Council of the People's Republic of China, State Council. It engages in the investment, construction, Operations management, operation and management of power generation assets and the Electricity generation, production and Electricity market, sale of Electric power, electricity. In 2012, the company was ranked 246th on the Fortune 500, ''Fortune'' 500 list. History China Huaneng Group Corporation was founded in 1989 as the holding company for a series of companies of that under the supervision of of the State Council of China, including Shenhua Group, Huaneng Coal Corporation and Huaneng International Power Development Corporation, etc. The group was part of a project that replacing oil fired power plant to coal power plant (). In 1993, the corporation was under the dual supe ... [...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] |
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