2. Overview  Concept & Design Approach  Background  Vertical Axis Wind Turbines  Application  Prototype  Cost Analysis  Return on Investment  Summery & Conclusion

3. Concept & Design Approach  Objective: Design an aesthetically appealing commercial building with integrated wind turbines to generate clean energy.  Design Approach: Integrated Vertical Axis Wind Turbines along the corners of the building Unified building-top turbine system in x shaped array

4. Background  How wind is generated Temperature differences Cold air in cities vs. warm air in surrounding area  Current Applications Horizontal Axis Wind Turbines

5. Vertical Axis Wind Turbines  Main concept of the building design based off of the usage of VAWT  VAWT allow for more integrated wind energy generation  Better integrated wind energy systems  More efficient in turbulent wind conditions Like around buildings

6. Application Corner InstallationCompleted Turbine Assembly

7. Application Cont. Complete BuildingTop Installation

8. Prototype

9. Cost Analysis (for one Assembly)

10. Return Investment  Researched/Assumed Facts: -Average wind speed of 10mph for 12 hours per day -Average cost of electricity: 12.73 cents per kWh -Life span of Turbine is 30 years -Air density = 1.23 kg/m^3 -Betz Limit = 59.26%

11. Calculations: Maximum Available Power from wind = (.5)*(air density)*(surface area of turbine)*(wind velocity)^3*(Betz Limit) Maximum Available Power from wind = 2185watts or 2.2kW

12. Power Generation Profit of Power Generated = (Maximum Available Power from wind)*(hours per day)*(days per year)*(current market price of electricity) Profit of Power Generated = $1226.66/yr

13. Breakeven Time Time to Breakeven = (cost of turbine)/(profit of power Generated) Time to Breakeven = 12.27 years

14. Return of Investment ROI = [(gain from investment) - (cost of investment)] / (cost of investment) *100 ROI = 144% over 30 years

15. Summary and Conclusion  Engineering Design class task Achieve Aesthetically pleasing look+ encourage clean energy turbine integration  Design process Customer assessment Turbine design Installation Power and energy

16. Any Questions?