Windmill

Michael Culley

Chris Hensel

Olivia Juneau

Logan Taylor

Team Picture

IntroductionGoal

To generate enough energy to light a 75-watt light bulb.

-To design a clean and safe operating windmill with the approximate dimensions of .5mx.5mx.8m

-Windmill must will be operated with out human interaction once started.

Materials

House hold items Cooper/ Tin wire (1500ft) Cardboard box Brass rods ( 12 inches ) Hot glue Styrofoam Canada Dry Cans ( bc Olivia is Canadian)

Picture of finished product

Mech. Intro The Fan:

The Gears, Shaft, and Washers: Generator:

How it works•In electromagnetic generator s they don’t pull electricity from nothing.

•It uses the mechanical energy from the moving magnets and then converts it to electrical energy.

•It does this by electromagnetic induction • Which is the reverse conversion of

electrical energy into mechanical energy is done by a motor. i.e. car motors

•A generator forces electrical charges to move through an external electrical circuit, The electricity is already in the wire the magnets just move it

http://en.wikipedia.org/wiki/Electrical_generator

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Electrical Intro:

Calculations Equations

KE = 1/2ρ(L*A)v2

P(calculated) = 1/2ρAv3

Actual P = IV

Efficiency = η

η =[(Actual)/(Calculated)] * 100

Symbols

V = Voltage

P = Power(watts)

I = Current(Amps)

Rho (ρ )= density of air

T = time

A = Area

L = Length

v = wind velocity

Summary As the project states we have build a windmill.

With a number of people moving to a green world wind power is becoming very big.

Windmills use wind to rotate a fan and that fan then produces electricity via electromagnetic generator.

The generator functions as described before.

http://www.flatrock.org.nz/topics/environment/assets/energy_windmills_copenhagen2.jpg

ConclusionConstruction Issues and Design Fails-Original wire was not long enough

-box was too small to house both gears and generator-gears required too much force to spin the propeller-Too much insulation for the magnets to transfer electrical current to the wire

Time Management-We started designing our windmill right off the bat.

-We met as a group about 3 times, and worked individually on some parts too. -We spent about $20 on the materials.- Logan and I went to buy the materials. We all contributed the the building, and PowerPoint.