AQUAFLUX prevents running dry

	Dosing water measurement in the hydroelectric power station

Generating power from water power has also been achieved for more than one hundred years in small river hydroelectric power stations. The cost effectiveness of power production is determined by the flow rate of the water and the level difference between banked up water level and turbine shaft.
The power house therefore is frequently located several hundred metres underneath the retaining weir. So that the old river bed between retaining weir and turbine outlet does not run dry, the law governing the protection of the waters prescribes a certain residual water volume in this river section.
  At the weir the retained water flows through an intake channel into a sand removing chamber and then it is led into the pressure pipe. A further pipe supplies the river with the minimum water volume through an intake basin.
An AQUAFLUX 410F DN 350 magnetic-inductive flowmeter installed in this line measures the flow. The measured volume flow is transferred to the control system through the 4 - 20 mA analog signal. Thus proof of maintaining the residual water volume is documented by recordings.

Key Words:
Flow, Aquaflux, MID, mid, EMF, emf, EFM, efm, power station, power, water, hydroelectric power station, dosing water, dosing water measurement


AP0114