By Gustavo Olm, Jamiah Harris, Franklin Jirn, Gabriel Molina, Brian Madrid,

1
The Power of Windmills

• By Gustavo Olm, Jamiah Harris, Franklin Jirón,
  Gabriel Molina, Brian Madrid, Allyson Ford

2
Brief History

• No known inventor, but some scholars believe the
  Chinese were the inventors
• Original Dutch style windmills calculated to have
  created peak power of 30kW, an average of 10kW
• These could do the same amount of work as 200
  people
• Historic uses were grinding corn, pumping water,
  making paper, and sawing timber
• By the 1930s, there were over 6,000,000 in
  operation, mostly multiblades

3
Blast From the Past
Jumbo or horizontal Windmill
Wind Motor with Vertical Axle
4
Components

• All windmill machines have three main parts
• a) a wind rotor with blades
• b) the output device, e.g. water pump or
  electricity generator
• c) a tower, mast or pole

5
Generator
6
Our First Windmill
7
Power Available With Wind
Data for our windmill (2 ft radius blade) Source
www.picoturbine.com
8
Ways We Improved

• Use of lighter blades that spin faster and
  produce more electricity
• Use of a metal dowel
• Reduction of weight by using stronger tape
• Reduction of friction between magnets and wire
  coils

9
Artist Rendition of New Windmill
10
Potential Difference In Experiments
11
Power In Experiments
12
Wind Power Efficiency Cost

• 59.25? of the winds energy can be converted into
  usable wind power (in the most efficient
  windmill) according to German researcher Albert
  Betz
• Can supply 20 of the nations electricity (six
  billion kilowatt hours)
• The cost of a kW-hr has dropped by more than 80
  in the last 20 years
• Todays cheapest wind energy costs 4 cents per
  kilowatt-hour
• The price continues to fall with advancements in
  technology

13
Wind Power Potential

• Areas with high capacity for production of wind
  power
• U.S.
• North Dakota
• Texas
• Kansas
• South Dakota
• Montana
• Europe
• Coastal areas of Great Britain
• Coastal areas of France Germany

14
Competitive Technologies

• Solar cells are only 15-20 efficient
• They can only operate with little or no clouds
• The most efficient fuel cells convert 60 of the
  chemical energy into electrical energy (same as
  windmills except they pollute)
• Biomass byproducts include CO2, NOX,
  hydrocarbons
• Generating electric power through gas, oil, and
  coal costs less than a windmill per kW-hr, but
  there is a much greater toll on the environment

15
Winergy Business Plan

• Offer efficient windmills available for domestic,
  commercial, and large-scale industrial
  applications
• Offer a low-maintenance alternative energy
  product with long-term durability
• Offer reliable maintenance
• Offer a zero-emissions product
• Markets
• Domestic/Commercial/Recreational users
• Windmill Farms

16
Winergy Business Plan (cont.)
17
The Big One
Windmill on top of MSA office
18
Sources

• www.picoturbine.com
• www.awea.org
• Teachers Guide to Windmill Power Projects
• Piggott, Hugh. Windpower Workshop. Machynlleth,
  Powys, UK. 1997. The Centre for Alternative
  Technology.
• Powell, F.E. Windmills Wind Motors. New York,
  NY. 1985. Lindsay Publications, Inc.
• Solar Cell Group Presentation 7/18/2001
• Biomass Group Presentation 7/18/2001
• Fuel Cell Group Presentation 7/19/2001
• Gas Turbine Group Presentation 7/19/2001