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Windmill

Windmill. Michael Culley Chris Hensel Olivia Juneau Logan Taylor. Introduction. Goal . Materials . House hold items Cooper/ Tin wire (1500ft) Cardboard box Brass rods ( 12 inches ) Hot glue Styrofoam Canada Dry Cans ( bc Olivia is Canadian).

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Windmill

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  1. Windmill Michael Culley Chris Hensel Olivia Juneau Logan Taylor

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

  3. Picture of finished product

  4. Mech. Intro The Fan: The Gears, Shaft, and Washers: Generator:

  5. 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 Electrical Intro: http://en.wikipedia.org/wiki/Electrical_generator http://www.physics.uiowa.edu/adventure/fall_2005/oct_15-05/light_bulb.jpg

  6. Calculations Equations Symbols V = Voltage P = Power(watts) I = Current(Amps) Rho (ρ )= density of air T = time A = Area L = Length v = wind velocity • KE =  1/2ρ(L*A)v2 • P(calculated) = 1/2ρAv3 • Actual P = IV • Efficiency = η η =[(Actual)/(Calculated)] * 100

  7. 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

  8. Conclusion Construction 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.

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