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Published byJodie Heath Modified over 9 years ago
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Crazy Alice
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Our Group Members Tyler Barnes Alexandria Shirey Wes Charlton William Hanscel
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Meet Crazy Alice… Small Motor from Hair Dryer Blades of windmill Axis of rotation that the magnet spins about
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Construction Materials Small hair dryer motor Hollow metal rod Wood Small plastic fan (from old motor) Wood glue Nails 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).
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Mechanical 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.
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Efficiency Calculations Equations - Theoretical Power: P = 0.5 x rho x A x Cp x V 3 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%
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Conclusion Using 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)
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Design Improvements Larger Blade Radius Coil Wrapped Motor and Magnets Gear System Blade Design to Maximize Wind Capture
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