Amerongen lock and weir system
The Amerongen lock and weir system is a hydraulic engineering system that was built as part of the Delta Plan near Amerongen on the Nederrijn . After seven years of construction, it was inaugurated in 1966. The system consists of a lock , the weirs and a hydroelectric power station . In the course of Nederrijn and Lek, three lock and weir systems were built.
Weir
task
The weir has the task of keeping the water level of the Nederrijn between Driel and Amerongen constant. When the flow of the Rhine is low, closing the weir ensures that the hinterland is supplied with sufficient fresh water for agriculture, and the water level in the Nederrijn is sufficient for shipping. If there is too much water from the Rhine, the weirs are opened, the water can then flow faster towards the lake. When the weirs are open, personnel can get to the other side through a tunnel under the weir.
The two weirs are semicircular visor weirs with a height of 9.50 meters, which guarantee a passage width of 38 meters and a height of 9.10 meters at HSW (Highest Shipping Water Level). The largest width is 48 meters. The weirs weigh 200 tons.
lock
A sluice has been set up next to the weir for shipping. The lock is 260 meters long and 18 meters wide. With a central gate, the lock can be divided into two chambers, 152 and 90 meters. There is also a hydroelectric power station.
Maurik hydroelectric power station
| Amerongen lock and weir system | ||
|---|---|---|
 |
||
| location | ||
|
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| Coordinates | 51 ° 58 '25 " N , 5 ° 24' 31" E | |
| country |
 Netherlands
|
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| place | Utrechtse Heuvelrug (Amerongen) | |
| Waters | Nederrijn | |
| power plant | ||
| owner | Nuon | |
| Start of operation | 1998 | |
| technology | ||
| Bottleneck performance | 10 megawatts | |
| Standard work capacity | 24-25 million kWh / year | |
| Turbines | 4th | |
| Generators | 4 at 2500 kW | |
| Others | ||
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The Maurik hydropower plant has four identical turbines, each installed in a flow channel with a variable diameter of four to ten meters. The water flows into the turbines at a speed of 12 m / s. The turbines rotate 78 times per minute. A gear increases this rotation to 750 min −1 for the four generators. Each generator has an output of 2500 kW, so the power plant has a total output of 10 MW. The generators generate electrical energy of 24 to 25 GWh annually.
Fish ladder
The fish ladder enables migratory fish to access the waters above. It consists of 24 pools with a height difference of 16 centimeters each.
Similar plants
Plant Driel
A second lock and weir system of the same type is located near Driel, it was completed in 1974. This weir system regulates the amount of water in the IJssel . If the flow rate at Lobith is below 2000 m³ / s , the weir is closed and the inflow to the Nederrijn is limited to 40 m³ / s. This guarantees a sufficient water level for the IJssel. A fish ladder also belongs to this system.
Hagestein plant
Another structurally identical system is located near Hagestein am Lek . Here the lock is only 220 meters long.
Individual evidence
- ↑ a b The weir is in the middle of the river, the power station on the Gelderland side and the lock on the Utrecht side. Source: Google Maps. Retrieved November 8, 2011 .
- ↑ a b c d e f g Waterkracht. Section "De Nederlandse waterkrachtcentrales". milieu centraal, accessed November 8, 2011 (Dutch).
- ↑ a b c d e f g h i Hydropower. Section "Hydropower stations at Maurik, Hagestein & Alphen aan de Maas". Nuon, accessed November 8, 2011 .