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Craik Solar Fair 2008

Craik Solar Fair 2008. Footprint Design. Vision Activities Past projects Current projects Future projects. Our Vision. Sustainability Energy Students Projects. Activities. Symposium Tours Movies Volunteer. Past Projects. Bicycle generator Biodiesel Vegetable oil Hydrogen.

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Craik Solar Fair 2008

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  1. Craik Solar Fair 2008

  2. Footprint Design Vision Activities Past projects Current projects Future projects

  3. Our Vision • Sustainability • Energy • Students • Projects

  4. Activities • Symposium • Tours • Movies • Volunteer

  5. Past Projects • Bicycle generator • Biodiesel • Vegetable oil • Hydrogen

  6. Current Projects • Wind turbine • Photovoltaic cells

  7. Project Goals • To completely hand build a wind turbine capable of producing 10 000 watts of electricity. • Show the world how cheap and easy it is to harness energy with zero emissions. • Make the U of S an example for sustainable technology • Take the knowledge we are learning in class and implementing it into all components of the wind turbine.

  8. Description • Produce about 8760 KWH annually enough to power one average house. • 70’ guyed tilt up tower. • Direct Drive Permanent Magnet Generator • Cost of materials $7000, installed with controllers and inverters ~20000$.

  9. Axial flux permanent magnet direct drive generators. They have 2 main components: A stator which contains wire coils and 2 rotors which contain the permanent magnets. Generator Type FOR MORE INFO... www.otherpower.com

  10. Generator • Each magnet produces 270 lb of force. • There are 32 magnets. • They will be held about 1” away • There will be 8640 lb of magnetic attracting force. • The coils have 220 wraps of 14 gauge wire. • There are 4 coils wired in series on each phase. • The 4/3 ratio magnets to coils gives a nice and easy 3 phase alternating current generator.

  11. Blade Types Laminated wood Plastic Fibreglasscomposite Sheet metal Bio-composite

  12. Blades • 10 feet long • 314 square foot sweep area • TSR (Tip Speed Ratio) of 5.5

  13. Power The generator will put out wild AC power. This limits what you can do with the electricity.

  14. Power Output

  15. Battery Packs Rectify to 12, 24, 48 volt dc. You need a dump source once the batteries are full. Can invert for use with household items. Need controllers and batteries. Sell to the Grid Need inverters, and meters. You buy electricity from SaskPowerfor 9 cents a kilowatt hour. You get 9 cents a kWh for the electricity you produce. Power Cont’d

  16. Economic Benefits If used properly this turbine can pay for itself in 10 years if running at 10% capacity. Turbines of this size cost $22000 to buy from a commercial dealer. We can build ours for under $7000 not including inverters. Income= 1 KW Hr/Hr X 24 Hr/Day X 364 Days/ Year= 8736 Kw Hr/ Year X 9 cents/ Kw Hr = $786 /Year

  17. Ecological Benefits Electricity Carbon Emission Factors 1.22 lbsCO2/kWh Annual CO2 sequestration per forested acre 7333 lbCO2/kWh Annual CO2 emissions for "average" passenger car 11560 lbsCO2/kWh Saved CO2= 8736 kWh/ Year X 1.22lbs CO2/kWh= 10657.9 lbs CO2/Year Life time CO2 Reduction is 106 tons Equivalent to taking 18 cars off the road for a year or Sequestration of 29 acres of forested land.

  18. Future Projects • Solar heating • Biodigester • Electric vehicles • VRB

  19. Electric Vehicles • Electricity • Efficient • Independent / Distributed • Motorcycle • Small car

  20. Thank You www.footprintdesign.usask.ca

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