Sedimente bei Wasserkraftanlagen - Schwebstoff-Monitoring und Verschleiss an Peltonturbinen
Prof. Dr. T. Staubli, Kompetenzzentrum Fluidmechanik und Hydromaschinen - Hochschule Luzern
Summary
Hydro-abrasive wear on turbines and steel hydraulics parts due to suspended mineral particles in the water can incur substantial operating costs and have a significant negative impact on revenue at hydroelectric plants, particularly at high- and medium head. As part of this project, new measuring technology will be used to continually record the concentration and size of suspended matter at an existing high-head hydroelectric plant in canton Valais (Fieschertal power plant) where severe hydro-abrasive wear has been observed. The damage to the Pelton turbines, i.e. the material loss on buckets and jet needles, is documented on the basis of several inspections and correlated with the major cause of the damages, i.e. the content of suspended matter in the turbine water, in order to verify and expand the calculation approaches for forecasting hydro-abrasive wear and the corresponding reduction of efficiency. Various measuring systems will be studied that allow monitoring of suspended load continually and in real-time.Project start
August 2011Partner
Gommerkraftwerke AG, BKW FMB Energie AG, Andritz Hydro AG, Rittmeyer AG, Swiss Federal Office of Energy SFOE
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