1. Wave Power Generation Team #7 “Plugging into the Power of the Waves”

2. Team Introduction Team #7 Mark Larade Keith Gillis Yves Sharp Eric Sharp Stephanie Beaton Supervisor Dr. Marek Kujath 2

3. Agenda 3 Problem Statement Requirements Generation of Alternatives Design Testing Plan Budget Conclusions Acknowledgements

4. Vast resource of unexploited energy No current design is the standard Power contained in a wave given by: Average Nova Scotian Wave : 1.5m, 5s ** Problem Statement 4 [W/m] * * Shaw, Robert ** Marine Environmental Data Services

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6. Objectives/Requirements 6 To use the motion of waves to produce 50 Watts of electricity Appropriate Scale Demonstrate practical concept Test in real world conditions

7. Generation of Alternatives 7

8. Design 8 Main power buoy rides waves. Cable attached to mooring is run around pulley in buoy. Cable returns to ocean floor. Attached to return buoy to provide tension for power pulley. Main buoy moves with wave Cable attached to mooring turns pulley Return mechanisms keeps line in tension Main Buoy Return Buoy Mooring

9. Design 9 Power System Generator Main Pulley

10. Design 10 Power System Shaft Main Pulley Rope

11. Design 11 38VDC permanent magnet servo motor as generator. Power cable runs through sealed hole in buoy. Cable comes aboard boat. Diode, fuse, switch, deep cell battery. 38V DC Generator Cables routed to testing boat Charges 12V battery Diode or rectifier employed

12. Testing Plan 12 Location: Blind Bay, NS Date: February – March 2008

13. Budget 13 Allocated $1300 from Department of Mechanical Engineering

14. Conclusions 14 Strengths Adaptable, Off the shelf parts, Portable Challenges Mooring Weight, Marine Growth, Sealing On Schedule, Meeting Requirements Preparing for Construction

15. Acknowledgements 15 Dr. Kjuath (Supervisor) Dr. Hubbard (Coordinator) Mechanical Technicians -Albert, Angus, Greg, Peter Neil Wolthers (Volunteer Consultant) Dr. Hughes, Dr. Wilki, Brian Leikens Dalhousie Mechanical Engineering Department Shell (Funding)

16. Questions

17. 17 Affect on Marine Life -Buoys have minimal affect on marine organism - Designed to handle seaweed - Power supply limited to 12 Volts

18. 18 Wave Power in Canada -Current wave power project in Canada – AquaBUOY - Ucluelet, BC (5MW) -http://www.finavera.com -http://peswiki.com/index.php/Directory:Ocean_Wave_Energy