From their environment, students usually know of wind turbines
that have 3 blades. There are also models with only 2 blades or
with completely different structures. In contrast, water wheels
have more blades ("Blätter"), and they are suitable for driving
large machinery. In the past they were, for example, used for
Wind wheels are used for the production of electrical energy.
The optimal number of blades is a consequence of not only fthe
maximum useful energy produced by the wind but also from the
necessary material inventory and the stability of the wind wheel
while in operation.
- Experiment is part of a complete solution set with a total of 26 experiments for Renewable Energy solar cells, wind power, water power
- Safe experimentation: The fan in the blower is protected against touch
- The power supply used is versatile and is particularly suitable for pupil tests for all ages
Compare wind wheels that have different numbers of rotor
For the comparison the generator of the wind wheel is equipped
first with 3, and then with 6 rotor blades. The wind wheel will
then be loaded with a light bulb and secondly a LED, while the
output voltages of the wind wheel are measured in response to
different wind speeds.