Tierras Blancas dam

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Tierras Blancas dam
Represa El Nihuil 06.jpg
location
Tierras Blancas dam (Argentina)
Tierras Blancas dam
Coordinates 34 ° 54 '14 "  S , 68 ° 37' 4"  W Coordinates: 34 ° 54 '14 "  S , 68 ° 37' 4"  W.
country ArgentinaArgentina Argentina
place Mendoza Province
Waters Río Atuel
Height upstream 887.75  m
power plant
owner Provincia de Mendoza
operator Hidroeléctrica Nihuiles SA
construction time 1968 to 1972
Start of operation 1972
technology
Bottleneck performance 52 megawatts
Average
height of fall 		75.75 m
Expansion flow 80 m³ / s
Standard work capacity 164 million kWh / year
Turbines Francis turbines : 2 × 26 MW
Others

The dam Tierras Blancas ( Spanish Represa Tierras Blancas or Dique Tierras Blancas ) is a dam with hydroelectric power station in the province of Mendoza , Argentina . It dams the Río Atuel into a small reservoir. The dam and the associated power station Nihuil III (span. Central hidroeléctrica Nihuil III ) are also referred to as the Nihuil III hydroelectric power plant complex (span. Complejo hidroeléctrico Nihuil III ).

The dam is used to generate electricity. Construction began in 1969. It was completed in 1971. The dam and the hydroelectric power station are state-owned ( Provincia de Mendoza ). The concession for the operation was transferred to Hidroeléctrica Nihuiles SA on June 1, 1994.

Barrier structure

The barrier structure is a concrete gravity dam with a height of 37 m above the river bed . The top of the wall lies at a height of 891 m above sea level . The length of the wall crown is 122 m, its width at the crown 5 m. The volume of the barrier structure is 30,000 (or 32,800) m³. The dam wall has both a flood relief and a bottom outlet . A maximum of 496 (or 600) m³ / s can be discharged via the flood discharge, and a maximum of 120 m³ / s via the bottom outlet.

Reservoir

The normal destination is between 883.75 and 887.75 m. With a reservoir target of 887.75 m, the reservoir extends over an area of ​​around 0.092 km² and holds 0.65 (or 0.8 or 0.89) million m³ of water. The maximum storage destination is 890 m, the minimum 881.75 m.

power plant

The Nihuil III power plant was built from 1968 to 1972. The power plant's machine house is located about 5 km downstream of the dam on the right bank of the river. The installed capacity is 52  MW . The average annual generation is given as 130 (or 150 or 164) million  kWh . Annual production fluctuates: in 2000 it was 128 million kWh and in 2006 it was 217 million kWh.

The two Francis turbines each have a maximum output of 26 MW and the generators each 32.5  MVA . The nominal speed of the turbines is 272 min −1 . The fall height is between 68.8 and 76.75 m. The flow rate is 40 m³ / s (maximum 78, minimum 29 m³ / s) per turbine.

Others

The operator Hidroeléctrica Nihuiles SA is 52.04% owned by Pampa Energía .

See also

Web links

Commons : Tierras Blancas dam  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d e f Inventario de Presas y Centrales Hidroeléctricas de la República Argentina 2. (PDF) Ministerio de Planificación Federal, Inversión Pública y Servicios, January 1, 2011, pp. 189–205 , accessed on June 5, 2019 ( Spanish).
  2. ↑ Hidroeléctrica Los Nihuiles ( "HINISA"). Pampa Energía , accessed June 5, 2019 (Spanish).
  3. ↑ a b c d e MATRIZ ENERGETICA INTEGRAL DE LA PROVINCIA DE MENDOZA. (PDF) web.archive.org, April 1, 2007, pp. 24-25 , accessed on June 13, 2019 (Spanish).
  4. ↑ a b c Nihuil III Hydroelectric Power Plant Argentina. Global Energy Observatory, accessed June 5, 2019 .
  5. ↑ a b Tierras Blancas. Organismo Regulador de Seguridad de Presas (ORSEP), accessed June 5, 2019 (Spanish).
  6. ↑ Ejercicio 1999 Informe anual. (PDF) ORSEP, p. 58 , accessed on June 5, 2019 (Spanish).
  7. ^ Estructura de la Compañía. Pampa Energía, accessed June 5, 2019 (Spanish).