Francis Turbine

Francis Turbine .

Francis Turbine

The Francis Turbine is part of the reaction turbines which convert the pressure energy of water into kinetic energy in the distributor and in the rotor. Francis turbines are used at medium heads and large flow rates. The turbine power is controlled by adjusting the guide vanes. In practice, Francis turbines are used in run-of-the river power plants and in storage power plants.

Learning Objectives And Experiments

1. Determination of mechanical output
2. Determination of efficiency
3. Recording of characteristic curves
4. Investigation of the influence of the guide vane position on the power output
5. Velocity triangles

Specification

1. Recording the curves of a Francis turbine and investigating the influence of the guide vane position
2. Transparent front panel for observing the operating area
3. Loading the turbine by use of the band brake
4. Adjustable guide vanes for setting different angles of attack
5. Recording the torque via band brake and force sensor
6. Force sensor at the turbine inlet