tower of power ef 152 final project november 30, 2009
TRANSCRIPT
Tower of Power
EF 152Final Project
November 30, 2009
Who are These People?
Austin Lee – Mechanical Corey Stancombe – Mechanical Lanier Loftin – Industrial Adam Bonomo – Industrial
Device Operation and DesignPermanent Magnate Generator
1. Fan turns blades2. Rotates gears at 4:1 ratio3. Spins duel rotors4. magnets on rotors induce current
in coils5. Electrical energy drives bulb
Mechanical Aspects
Carbon Fiber High-Speed Shaft Geared at 4 to 1 ratio Horizontal axis design Duel magnet rotors Single sandwich stator
Electrical Aspects
8 magnet sandwich design 2x as much magnetic flux transfer
through coils 4 coils
Estimated to be 300+ turns each Single phase stator
Alternating clockwise and counterclockwise winding Wired in series
Efficiency Calculations
power= V*I 1.2 watts = 12V*.1A
Issues
Coil Problems Winding on bobbins using power drill Alternating direction of coils Correct Coil wiring
Balancing Rotors Using properly sized wheel collars to
eliminate vibrations Close Tolerance
2mm (hard to achieve)
Summing Things Up
Kept under the $40 spending limit Very good voltage being produced Measurements were very
important in this project A lot of trial and error, and new
LEDs