By : Matt Iannacone
Sammy Akato
Stephen Zimmerman
Design
 Our design consists of
a Kenex box structure,
a generator, and a fan.
 As the fan turns due to
wind power the
magnets will rotate
within the generator
producing the voltage
needed.
Fan Design
 Created out of balsa wood and tissue paper
 Water wheel style
 Supported by Kenex
 Three blades
 Extremely light
Generator Design
 Insulated wire wrapped
around a coke bottle
 Wrapped 700 times
 Placed and supported in a
box structure
 Earth magnets run within
the coils
 Connected to the fan
Mechanical and Electrical Aspects
 Wind energy captured by the fan
 The more wind the more rotations
 Magnets rotate
 Magnets create electrical current
 Energy loss due to friction, generator resistance, and fan
flaws.
Construction Issues
 The generator
 Difficult to create
 Problem with efficiency
 The fan
 Fragile
 Sensitive to moisture
 Overall
 Project was challenging
 Time consuming
Efficiency
 Equations
 Ptheoretical = ½(ρAV3) – density(air) * surface area(fan) * air velocity
 Ptested = VA – volts * amps = watts
 (Ptested / Ptheoretical) * 100 = efficiency
 Values
 Ptheoretical = ½ * 1.225 * .0383866) * 1.73 = .115513 watts
 Ptested = 1.4 * .0035 = .0049 watts
 E = (Ptested / Ptheoretical) * 100 = 42.42% efficiency
Conclusion
 Project was successful
 Learned basic concepts of




electricity and generators
Development of teamwork
Better materials could produce a
higher efficiency
Spent $21.29
This project is relevant because
at a large scale windmills are
used to produce green
electricity for everyday life.