Crazy Alice

Our Group Members

•Tyler Barnes•Alexandria Shirey•Wes Charlton•William Hanscel

Meet Crazy Alice…•Small Motor from Hair Dryer

•Blades of windmill

•Axis of rotation that the magnet spins about

ConstructionMaterialsSmall hair dryer

motorHollow metal rodWoodSmall plastic fan

(from old motor)Wood glueNails Plastic zip ties

To ensure that the motor would supply volts of electricity after being taken apart, we attached the axis of the motor to a power drill and connected the wires to a voltmeter (which successfully supplied about 3 volts).

MechanicalElectrical Electrical

Fan supplies air flow by means of electrical power

Air causes mechanical movement of blades

Rotating blades spin rod connected to axis of fan

Spinning rod spins axis on which the magnet spins inside of the motor creating electrical power.

Efficiency CalculationsEquations- Theoretical Power: P = 0.5 x rho x A x Cp x V3 x Ng x Nb- Actual Power: P = volts x amperes

• Efficiency = Actual Power/Theoretical Power• Calculations Cp= .35 Ng=.5 Nb= .90• Theoretical Power = 0.00865• Actual Power = 0.000512• Efficiency = 5.92%

ConclusionUsing a prefabricated motor saved time.If we had created a motor from scratch it

would have been easier to manipulate the amount of volts produced.

Even though a prefabricated motor was used, the same concept was applied in creating electricity (a spinning magnet encircled by coils of copper wire)

Design Improvements

• Larger Blade Radius• Coil Wrapped Motor and Magnets• Gear System• Blade Design to Maximize Wind Capture