Electricity Windmill Blade Angles Science Fair Projects

Blades of a Windmill

There are several components of a windmill that you can alter in a science fair project. Blade design is one of those components. When experimenting with blade design you can address the blade's size, shape and angle.

PURPOSE

The purpose of this experiment was to determine which windmill blade sizes, shapes, and angles were most efficient at producing an electrical current from a generator.

The information gained from this experiment will help windmill designers and people in rugged areas where the power lines do not reach to determine the optimum size, shape, and angle of windmill blades used to produce electricity.

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

HYPOTHESIS

I believe that a trapezoid shaped blade at 75 degrees with the largest surface area will generate the greatest amount of electricity compared to the square, triangle, or rectangular shapes.

I base my hypothesis on internet research and literature that I have read.

EXPERIMENT DESIGN

The constants in this study were:
* Same DC amp meter
* Same windmill
* Same generator
* Same fan (wind generator)
* Same electricity generator
* Same wind speed
* Same fan distance (1 meter) from blades

The manipulated variables are the shape, size (blade area), angle, and length of the blades.

The responding variable was the electrical output of the generator attached to the windmill. It was measured as milliamps on an amp meter.

MATERIALS