THE WONDER WHEELTHE WONDER WHEELClaire Fage, Jared Smith, Brittani Perez,

Bryan Fly, Rusty Castleberry

Team MembersTeam Members

Left to right:Jared Smith, Claire Fage, Rusty Castleberry, Bryan Fly, Brittani Perez

Initial IdeasInitial IdeasFan blades out of Coke cans

The axel would turn a series of gears, which would turn the generator

Vertical standing windmill

Three bladed fan

PVC pipe generator

Supply ListSupply List

Scrap Wood----Free

Balsa Wood----$4.86

Copper Wiring----$11.99

Wood Glue----Free

Dowel Rods----Free

Magnets----$5.99

Styrofoam Circle----$1.89

Electric Tape----Free

Design / ConstructionDesign / ConstructionConstructed generator using particle

board, copper wire, and magnets

Placed a dowel rod through the center of the generator, and than placed the magnets on top of the rod with spacers

Constructed a wooden frame from scrap wood to hold the dowel rod in place

Constructed an axel with 5 balsa wooded fan blades, attached them to a circular Styrofoam centerpiece, and attached to the wooden frame

CalculationsCalculations Velocity = (16π) / .2sec

= 251.327 in/sec Acceleration = 251.327 / 1sec

= 251.327 in/sec² = 6.382 m/sec²

F = (.35kg)(6.382 m/sec²) = 2.2343 N P = (Fd)/t

= [(2.2343 N)(16π/39.37)] / (1sec) = 2.8526 W

Produces.5V = J/C

U = ½CV² = ½(3.6 C)(.5)² = .45 J actual

U = 2.8526 = ½(3.6)(V)² V possible = 1.259V

.5V x 100 = efficiency1.259

40% = EFFICIENCY

Mass of Fan = 35 gramsRadius = 8 inchesCircumference = 16π1 meter = 39.37 inches

Ferrite magnetCharge on the magnet: 3.6C

ProblemsProblems Generator:

◦ Initially used PVC pipe: too thick.◦ Magnet spinning wrong direction.◦ Dimension adjustments due to

friction within generator box.

Windmill:◦ Fan blades breaking.◦ Styrofoam unstable.◦ Issues with fan blades staying put.◦ Not producing enough voltage to light bulb

Solutions:◦ Consulted as a team when problems happened to figure

out solutions◦ Remade generator box◦ Double glued the fan blades on◦ Continually tested until we achieved the desired outcome

Final DesignFinal Design