Perry’s Windmill

-Alyssa Schroder- -Christina Fraser--Tiffany Blevins- -Zack Henley-

Materials

–Wood ($11.19) Total = $39.12–Wire ($6.59)–Magnets ($8.00)–Paint ($4.00)–Glue ($1.99)–Screws ($.40)–Metal bar ($2.97)–Epoxy ($3.98)

Design

• Generator

We connected two magnets to a rod which rested in a

wooden box. Approximately 600 feet of wire are wrapped around

the box to collect the magnetic field.

• Windmill

We connected five wooden propeller blades to the rod

connected to the magnets. Which spin the magnets creating the

magnetic field.

Windmill Design

Side View

Top view

Construction Issues

• How to spin the magnets?

• What size magnets?

• Which way to wrap the wire?

• What materials to use?

• Size of propeller blades?

Power & Effeciency

• Vfan = 20 mph, 8.9408 m/s

• A = .05067 m • V = 5.2987 Volts

• PPotential = ½ pAV3

• PPotential = ½ (1.204)(.05067)(8.94083) = 22.1813 Watts

• Effeciency = (Actual)/(Potential) x 100 = (.56/22.1813) x 100

= 2.525 %

• Pactual = I x V• Pactual = .56 Watts

Conclusion

• Generators are not as hard as they look

• Getting the right materials is key

• Using a magnetic field to generate electricity

is simple and fairly easy.