Hydroelectricity is electricity produced from hydropower and its cost is relatively low, making it a competitive source of renewable electricity. A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity. The available system designed by De Lorenzo is for the study and display of both the behavior and the characteristics of a Pelton turbine. The turbine’s housing is transparent to show how it uses the inertia produced by a water jet. A braking device, by means of an electric brake, allows showing the turbine working at different speeds. A hydraulic bench is suggested to pump water into the turbine. This equipment is recommended for high schools and first years of university.
The system is designed for the study and display of both the behavior and the characteristics of a Pelton turbine.
The turbine housing is transparent so as to show how the turbine uses the inertia produced by a water jet.
Through the different indicators of the system, it is possible to visualize all the variables related to the transformation of energy.
The braking device by means of an electric brake allows working at different speeds in a simple and effective way.
• characteristic curves of the turbine (torque speed, brake power-speed, performance speed, torque-voltage, brake power-voltage, efficiency-voltage)
• curves of iso-efficiency
• efficiency of the turbine-electric generator system
• Impulse piping Øexternal = 32 mm.
• Inlet piping Øinternal = 10 mm.
• Bourdon type with glycerine 0 to 25 m.w.c.
Characteristics of the electric brake:
• DC generator
• Rated speed: 3000 rpm
• Rated power: 1000 W
Characteristics of the turbine:
• Number of blades: 16.
• Diameter of the rotor: 124 mm.
• Depth of the buckets: 14 mm.
• Diameter of the jet flow: 10 mm.
• Diameter of the axis: 16 mm.
• Rated speed: 1000 rpm
• Speed sensor
• Load cell
• Electronic displays
DL DKL014 – Hydraulic bench
The basic hydraulic bench is a simple, mobile, self contained module that allows a supply of "hydraulic energy", i.e. an accurately controlled and measurable flow of water.
It includes two collecting tanks, a centrifugal pump, a flowmeter, a mobile frame work on wheels, a set of valves and piping.