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Background
Supervisor: Ole Gunnar Dahlhaug
By Linda Haugvaldstad
Erosion damage of guide vane
Components needed for PIV measurements
Sediment erosion in Francis turbines is a large problem for river power plants near the
Himalayas and the Andes Mountains. The turbines at Jhimruk Power Plant in Nepal need
to be maintained annually due to high erosion wear, resulting in reduced energy production
and high costs. It is therefore of interest to have deeper knowledge of relation between flow
behavior and sediment erosion in Francis turbines.
The aim is to carry out experimental tests to identify effects of sediment erosion on guide
vanes of Francis turbines.
PIV, pressure sensors and logging system are going to be installed for velocity and pressure
measurements.
A visit to the Turbine Testing Laboratory at Kathmandu University in Nepal, to make
arrangements for a similar test rig, is also a part of the thesis.
Master Thesis
Waterpower Laboratory
Study of Sediment Erosion
in Guide Vanes of Francis
Turbine