Product Details

The Francis turbine is a reaction turbine that converts the pressure energy of water into kinetic energy in the distributor. Water is supplied to the distributor through a spiral housing. Adjustable guide vanes within the distributor accelerate the flow and direct it onto the turbine blades. As the water passes through the rotor, it is redirected and further accelerated, generating an impulse that is transmitted to the rotor to produce mechanical work. This ESOLS product consists of a Francis turbine rotor, a distributor with adjustable guide vanes, a band brake for applying load, and a housing with a transparent front panel. The transparent cover enables observation of the water flow, rotor, and guide vanes during operation. The guide vanes allow adjustment of the angle of attack, thereby varying the rotor power. A simple mechanical brake and spring balance assembly is mounted on the turbine shaft to apply a variable mechanical load (torque). Students use this arrangement together with the turbine speed, measured by a tachometer, to determine the power absorbed by the turbine. A pressure gauge is provided to measure the inlet pressure. The experimental unit can be operated either by a laboratory water supply or in combination with any hydraulic bench.