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The Unbong Dam, or Yunfeng Dam, is a concrete gravity dam on the Yalu River which borders China and North Korea. It is located 33 km (21 mi) northeast of Ji'an in Jilin Province, China and Chasŏng in Chagang Province, North Korea. The primary purpose of the dam is hydroelectric power generation and it supports a 400 MW power station. Construction of the dam had initially began in August 1942 but was halted in 1945 after the surrender of Japan ending World War II.[1] In October 1959, construction on the dam recommenced and in September 1965, the first of the four 100 MW Francis turbine-generators was operational. The last generator was operational on 4 April 1967. The 113.75 m (373 ft) tall dam creates a reservoir with a storage capacity of 3,895,000,000 m3 (3,157,728 acre⋅ft). The dam's spillway is an overflow type with 21 floodgates and has a maximum discharge of 21,900 m3/s (773,391 cu ft/s). The dam is located before a bend in the river and its power station is located on the other side of a ridge that meets the dam's right abutment. Water is delivered to the power station via two tunnels, 775 m (2,543 ft) and 759 m (2,490 ft) long. Generators 1 and 3 deliver power to China while 2 and 4 deliver to North Korea.[2][3]
| Unbong Dam/Yunfeng Dam | |
|---|---|
 View of the reservoir from the Chinese-side of the dam | |
  Location of Unbong Dam/Yunfeng Dam in China | |
| Official name | 운봉댐,云峰水电站 |
| Country | China/North Korea |
| Location | Ji'an/Chasŏng |
| Coordinates | 41°22′51″N 126°30′52″E |
| Status | Operational |
| Construction began | 1959 |
| Opening date | 1965 |
| Dam and spillways | |
| Type of dam | Concrete gravity |
| Impounds | Yalu River |
| Height | 113.75 m (373 ft) |
| Length | 828 m (2,717 ft) |
| Elevation at crest | 321.75 m (1,056 ft) |
| Spillway type | Overflow, 21 gates |
| Spillway capacity | 21,900 m3/s (773,391 cu ft/s) |
| Reservoir | |
| Total capacity | 3,895,000,000 m3 (3,157,728 acre⋅ft) |
| Active capacity | 2,662,000,000 m3 (2,158,119 acre⋅ft) |
| Catchment area | 17,572 km2 (6,785 sq mi) |
| Normal elevation | 318.75 m (1,046 ft) |
| Power Station | |
| Commission date | 1965-67 |
| Hydraulic head | 89 m (292 ft) (design) |
| Turbines | 4 x 100 MW Francis-type |
| Installed capacity | 400 MW |
See also
- List of dams and reservoirs in China
- List of major power stations in Jilin
References
- "Yunfeng Hydropower" (in Chinese). Neidri. Retrieved 5 September 2011.
- "Yunfeng Hydropower" (in Chinese). Zhejiang College of Water Conservancy and Hydropower. Retrieved 5 September 2011.
- "China's highest Concrete Gravity Dams". Chinese National Committee on Large Dams. Retrieved 5 September 2011.
Hydroelectric dams on the Yalu River | |
|---|---|
На других языках
- [en] Unbong Dam
[es] Presa Unbong
La presa Unbong , o presa de Yunfeng , es una presa de gravedad situada al río Yalu lal cual limita con China y Corea del Norte. Se encuentra a 33 km al nordeste de la ciudad de Ji'an, provincia de Jilin (provincia de Jilin), China y Chasŏng ( provincia de Chagang), Corea del Norte. El objetivo principal de la presa es la generación de energía hidroeléctrica y se encuentra conectada a una central de 400 MW. La construcción de la presa había empezado inicialmente en agosto de 1942, pero fue detenido el 1945 después de la rendición del Japón, poniendo fin a la Segunda Guerra Mundial.[1] En octubre de 1959, se volvió a empezar la construcción de la presa y, en septiembre de 1965, funcionó el primero de los cuatro generadores de turbina Francis de 100 MW . El último generador entró en funcionamiento el 4 de abril de 1967. La presa de 113,75 m de altura tiene una capacidad de almacenamiento de 3.895.000.000 m³ . La vertiente de la presa es de tipo desbordamiento con 21 puertas inundables y tiene una descarga máxima de 21.900 m³/ s . El agua se suministra a la central mediante dos túneles de 775 m de longitud y 759 m de longitud. La energía producida por los generadores 1 y 3 se suministran a China mientras que la producida por los generadores 2 y 4 se suministra a Corea del Norte.[2][3][fr] Barrage de Yunfeng
Le barrage de Yunfeng est un barrage-poids construit sur le Yalou à la frontière de la Chine et de la Corée du Nord. Il se trouve à 33 km au nord des villes de Ji'an et de Manpho. Son rôle principal est de fournir de l'électricité et il fait tourner une centrale électrique de 400 MW.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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