Turbines of high- and medium-head hydropower plants (HPPs) operating at sediment-laden rivers are subject to wear (hydro-abrasive erosion), which may lead to high maintenance costs and production losses. Data on suspended sediment load, turbine wear and efficiency reduction, obtained from measurements since 2012 at a case study at HPP Fieschertal, Switzerland, are evaluated to contribute to improving the efficiency and cost effectiveness of such HPPs.
Source of funding: Swiss National Science Foundation (SNSF)
Research partners: Laboratory of Hydraulics, Hydrology and Glaciology (VAW) at ETH Zurich, Lucerne University of Applied Sciences and Arts
Duration: July 2011 to December 2015