Francis Turbine

FRANCIS TURBINE

• Water turbines are turbomachines utilising water power. 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. The redirection and further acceleration of the water in the rotor generates an impulse which is transmitted to the rotor.
• The experimental unit consists of the rotor, the distributor with adjustable guide vanes, a band brake for loading the turbine and a housing with a transparent front panel. The transparent cover enables to observe the water flow, the rotor and the guide vanes during operation. The angle of attack and thus the power of the rotor are modified by adjusting the guide vanes. 
• The structure easily installed in the basic hydraulic bench,
• The unit composed of a small size Francis turbine,
• Made of stainless steel,
• Transparent plexiglass cover for flow visualization,
• Develop a power of about 3 W,
• A bourdon type manometer (range 0÷1 bar) measure the inlet pressure,
• A portable digital tachometer allow the speed measurement,
• Two dynamometers allow the torque measurement,

• Spring type dynamometer,
• Range 0÷10 N with 0.1 N division.