The Effect of Blade Separation and Windspeed on a Windmill

Savonius rotor wind power science fair projects 8th graders begins here...

Purpose

The purpose of this experiment was to determine the diameter and height of a Savonius Rotor Windmill so that it will produce the most power.

I became interested in this idea because I have always been fascinated by the air that can lift a plane and blow down trees even though you can’t see it. I wanted to know the best way to use catch it and make things spin, in this case, a Savonius Rotor Windmill.

The information gained from this experiment will help power companies or people with wells (Savonius Rotor Windmills are more often used with pumps that power generators) to build the most efficient windmill.

This also makes a great project for classrooms, science camps and groups. Check out the discount prices.

Hypothesis

My first hypothesis was that the largest separation would produce the most power.

My second hypothesis was that the highest wind speed would produce the most power with either height of blades.

Experiment Design

The constants in this experiment were Blade diameter and wind speed of fan.

The manipulated variables were Height, blade separation and distance of fan from rotor.

The responding variable was the power output of a motor connected to the windmill.

To measure the responding variable I connected a voltmeter to the generator.

Materials