1. Revolutionary Technologies Group C1 Nicholas Arch, Nicholas Fraser, Robert Huth, Patrick Noble, Michael Toomey Preliminary Design Review January 31, 2008

2. Last Week’s Action Items  Product Design Requirements Internal memo of design requirements, customers, and competitors  Individual Product Concept Memo Sketched concepts based on design requirements

3. Product Design Requirements  Extract energy from wind  Produce 20 Watts, 12 Volts DC for a constant 24 hours  Able to operate at fluctuating wind speed  Satisfy transportation requirements  Easily-deployable  Utilize a provided generator

4. Customers and Competitors  Customers Construction crews Military personnel Campers Film Crews Disaster Victims  Competitors Batteries Solar Energy Small internal combustion engine

5. Individual Concept Sketches

6. Individual Concept Sketches (continued)

9. Current Status of Concept  Status of Design Currently evaluating advantages and disadvantages of types of turbines Prototyping to decide between HAWT and VAWT

10. Prototype Video

11. Next Week’s Action Items  Decide between horizontal-axis and vertical-axis wind turbine Options: Lift-Based Vertical, Drag-Based Vertical, Traditional Horizontal Calculate power and torque  Use literature from Dr. Nelson  Complete torque calculations for available generators Analyze generator specifications Explore back-driven DC motor  Contact Mr. Brownell

12. Thank You Questions?