Andong dam
| Andong dam | ||
|---|---|---|
 |
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| location | ||
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| Coordinates | 36 ° 35 '5 " N , 128 ° 46' 26" E | |
| country |
 South Korea
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| place | Gyeongsangbuk-do Province | |
| Waters | Nakdong | |
| power plant | ||
| owner | K-Water | |
| operator | KHNP | |
| construction time | 1971 to 1976 | |
| Start of operation | 1976 | |
| technology | ||
| Bottleneck performance | 90 megawatts | |
| Average height of fall |
57 m | |
| Turbines | 2 × 45 MW | |
| Others | ||
The Andong Dam ( kor .: 안동댐 Andong-daem ) is a dam with a hydropower plant in Chungcheongbuk-do Province , South Korea . It dams the Nakdong to a reservoir. The associated pumped storage power plant has an installed capacity of 90 MW . Andong city is about 4 km downstream .
The dam was built from 1971 to 1976. In addition to generating electricity, it is also used for flood protection and drinking water supply. The power station is owned by Korea Water Resources Corporation (K-Water) (ENDE); however, it is operated by Korea Hydro and Nuclear Power (KHNP).
Barrier structure
The barrier structure is a stone embankment dam with a height of 83 m. The length of the dam crest is 612 m and its width 8 m. At the base of the foundation , the dam is 200 m wide. The volume of the structure is 4.014 million m³. The flood relief is on the left side of the dam.
Reservoir
With a normal storage target of 160 m above sea level , the reservoir extends over an area of around 60 km² and holds 1.248 billion m³ of water.
The Andong reservoir was connected to the neighboring reservoir of the Imha dam by a tunnel (length 1925 m; diameter 5.5 m). The tunnel is at a height of 141 m above sea level, so that the water can basically flow in both directions. The aim of the tunnel is to ensure that less water at the Imha dam, when there is a strong inflow into the reservoir, has to be diverted unused via the flood relief, by diverting it to the larger Andong reservoir in this case.
power plant
The power plant has an installed capacity of 90 MW . The two machines in the power plant each have a maximum output of 45 MW; they can also be operated as pump turbines . The machine house is at the foot of the dam.
About 3 km downstream of the dam is a weir with a height of 20 m and a length of 238 m. Its reservoir forms the lower basin for the pumping operation.
The Andritz AG was commissioned to renew the two turbines by mid-2019 the job. The new turbines have a maximum output of 46.3 MW each. Their nominal speed is 189.5 / min. The maximum height of fall is 57 m. The nominal voltage of the associated generators is 12 kV .
See also
Web links
Individual evidence
- ↑ Andong Dam (안동댐). Visit Korea, accessed October 27, 2018 .
- ^ A b c Andong PS Hydroelectric Power Plant South Korea. Global Energy Observatory, accessed October 27, 2018 .
- ^ A b Dam-Break Flood Risk Management: Nakdong River Case Studies. (PDF) www.icharm.pwri.go.jp, p. 9 , accessed on October 27, 2018 (English).
- ^ Water Circle. Korea Water Resources Corporation (K-water), accessed October 27, 2018 .
- ^ A b The Strategy for Securing Water Resources through Connection with the Tunnel of Dams in Korea. (PDF) conferences.iaia.org, pp. 1–2 , accessed on October 29, 2018 (English).
- ^ Andong, South Korea. Andritz AG , accessed October 27, 2018 .