Operating principle of a Francis turbine

The Francis turbine is a type of reaction turbine which converts the pressure energy of the water into kinetic energy in the distributor and in the rotor. The water is fed in the distributor by means of a spiral housing. The flowing water is accelerated in the distributor by the adjustable guide vanes and directed onto the blades. Learn about Operating principle of a Francis turbine specifications for optimal educational outcomes.. The redirection and further acceleration of the water in the rotor generates an impulse which is transmitted to the rotor.

• function of a Francis turbine
• transparent front panel for observing the operating area
• loading the turbine by use of the band brake
• adjustable guide vanes for setting different angles of attack
• marking on brake drum for non-contact speed measurement
• instruments: spring balances for determining the torque, manometer shows pressure at turbine inlet
• flow determination by base module
• water supply using the base module or via lab supply
• flow visualisation using prepared CFD simulations
• digital multimedia teaching material online in the Media Center: E–Learning course, prepared CFD simulations, worksheets, videos