Transcript Presentation1

Gasiorowicz
Tyler Eller
Britt Elmore
Jonathan French
Austin Eldridge
Gasiorowicz
Overview
• Uses a fan from a tower fan to turn it’s
generator
• Generator is constructed from wood and has 8
coils around the magnets.
• Each coil has 800 windings of 34 gauge wire.
• Total length of wire is 7/10 of a mile
Mechanical
• The Gasiorowicz converts wind energy into
rotational energy.
• At the end of the shaft it turns 8 magnets that
are surrounded by 8 coils thus producing
electricity.
Electrical
• 34 gauge copper enamel coated wire in the
generator.
• On the shaft are 8 neodymium-iron-boron
magnets
– Four with the south pole on the convex face Four
with the north pole on the convex face.
• When the shaft turns it will produce AC
voltage.
Efficiency
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P = 0.5 x rho x A x Cp x V^3 x Ng x Nb
P = 0.5(1.225kg/m^3)(.2288m^2)(1.7m/s)^3
Theoretical P=.6879watts
P=Volts x Amps
P=(8V)(.01A)
Actual P = .08 watts
• Efficiency = (.08W)/(.6879W) x 100 = 11.62%
Summary of Design/Construction issues
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Bad Bearings
Magnets rubbing coils
Bad wiring connections between coils
Brittle magnets
Staying in budget
Orienting the airflow for our fan blades
Conclusions
• Generators are a simple idea but complicated
to build
• It is difficult to be efficient
• For under $40 you can build a windmill that
uses renewable energy to power a light bulb