The Wind Energy Basic Unit, “MINI-EEE”, is a small-scale unit designed to study wind energy and the influence of some factors on its generation.
This unit consists of a transparent tunnel, a wind turbine with rotor to place up to six blades and a variable speed axial fan.
The air speed is varied by changing the rotational speed of the axial fan and a sensor allows for measuring that air velocity.
This fan generates the required air flow to make the rotor of the wind energy unit work. The generator converts the kinetic energy of the rotor into electric energy. The rotational speed of the wind turbine can be measured with a sensor.
The unit includes a DC load module with LEDs, a rheostat, a DC motor, a load selector and switches to select the type of load. Thus, the wind turbine may work in open circuit or connected to LEDS, to a rheostat or to a DC motor.
A voltage and current sensor measures the voltage and current provided by the wind turbine in order to determine the power.
SPECIFICATION
Air generator:
- Axial fan with variable speed.
- Maximum flow rate: 1473 m³/h.
- Finger guard included.
Wind turbine:
- The safety turbine is a simple injection model that joins the ends of up to six air blades.
- Set of six blades for the wind turbine.
- Power (at a rotor speed of 2000 rpm): 1 W.
- Outlet voltage (at a rotor speed of 1000 rpm): 5 V DC.
- Outlet current (at a rotor speed of 1000 rpm): 50 mA DC.
- Minimum speed of the wind required to generate electricity: 2 m/s.
- Rotational speed sensor for the wind turbine, range: 0 – 2000 rpm.
Air tunnel:
- Made of PMMA.
- Length of 500 mm and diameter of 300 mm approximately.
- Anemometer that allows to measure speeds below 20 m/s.
Voltage and current sensor.
- Electronic console:
- Metallic box.
- Connector for the DC current and voltage sensor.
- Digital display for the current (DC).
- Digital display for the voltage (DC).
- Connector for the turning speed sensor for the aerogenerator.
- Digital display for the turning speed. Switch for the axial fan.
- Regulator for the speed of axial fan