Wind Power – Alternative Energy

1. Wind Power –Alternative Energy Choluteca, Honduras Group Members: Brandon King, Killian Llewellyn, Nirupa Manohar, Lisa Reisenauer, Elizabeth Schweizer, Nial Tilson, Stephanie Tsavaris, Tom Zajdel 4/19/2012

2. Table of Contents • Overview • Pre-Trip Project Components • Block Diagram with Components • Mechanical Properties • Power Requirements • Implementation • Post-Trip Summary • Feasibility Analysis • Sustainability

3. Overview • Create energy source for Storage Unit • No current power in the container • Electricity is expensive

4. Overview • Designed to provide energy for 4 hours daily • A battery charger • Couple of work lights • Create a prototype/training tool for the Vocational School to learn about wind generation.

5. Pre-Trip Project Components

6. System Block Diagram

7. Mechanical Properties

8. Mechanical Properties

9. Mechanical Properties

10. Power Requirements • 400 W inverter • Battery bank • Two 12V 105Ah • This is a worst-case calculation, assuming everything is on for four hours!

11. Electrical Limitations • Start with the generator • 95 V @ 4000 RPM • 14 V @ 600 RPM • Need at least 14V to charge battery, motor puts out about 2A maximum at this voltage • Can charge battery 48 Ah in a 24-hour period • Would take 99 hours to fully charge, or 4.14 days!

12. Electrical Limitations • Generator is the limiting reagent of this system • Low output current at the required voltage leads to slow charging • Could revise battery bank to 105 Ah to save money • Can scale up project once a better generator is found

13. Implementations

14. First Work Day • Preparation for construction

15. Building the Structure • Built and modified the needed components

16. Assembling the Wind Turbine

17. Wiring

18. Electronics to do: • Charge controller • Expand diversion load • New motor connections • Install fuse

19. Electrical Complications • Original motor weak (replace w/ 2.5 hp motor) • Wrong charge controller! • Wiring can be completed when new motor/Q-controller are sent down That’s not a charge controller, Dave.

20. Design Complications • At high wind speeds, the system was producing 6V but 12V was needed

21. Design Modifications • Add gearing to the system

22. Trip Summary and Next Steps • The wind turbine is assembled but unable to rotate • The electrical wire are in place and ready for the additional components to be integrated • A new generator and turbine system will be built at The Ohio State University and sent down • Instructions regarding the installation will be provided

23. New Generator and Turbine System Design

24. Post Trip Summary

25. Final Costs • Prior to leaving, $200.54 were spent on supplies: • Blade Materials (PVC) • Pulley System and Mounting Parts • While in country, $305.84 was spent on supplies: • Grounding Rods • Wires and a battery • The total spent was $506.38.

26. Date Planned Actual 17-Mar Arrive in Choluteca Arrive in Choluteca 18-Mar Beach day Beach day Initial Assessment and Other Projects Assemble blades and rear hinge 19-Mar and stand/tower and mount 3/20: Finish assemble and Begin wiring Mounting Components Built and Installed Split 3/21: Finish wiring and begin testing Initial Electrical Wiring and Mounting Modifications Split Finish Other Projects 22-Mar Finished Electrical Wiring and Began Gearing System 23-Mar Troubleshooting/ Depart for Troubleshooting/ Depart for Tegucigalpa Tegucigalpa 24-Mar Return home Return home Final Schedule

27. Team Roles

28. Feasibility Analysis and Sustainable Solutions

29. Feasibility Analysis • Educate Vocational School staff on technical components of the systems in case of system failure/malfunction. • System Loads • Operation of Turbine • Procedure for Maintenance

30. Feasibility Analysis (cont.) • Safety Concerns: • Closed off, protected electrical components. • Electrical Components will be contained in the storage container and protected from users and environment • Fast spinning parts are to be placed out of reach • Turbine blades will be 6 feet above the roof of the shelter, leaving ample space between turbine and ground level • Total instability (height / how secured) • The turbine support tower will be anchored to the storage container, and firmly secured to the top of the shelter frame, allowing two anchoring points, increasing the system stability

31. Sustainable Solutions • Power from wind is converted to usable electricity. • Based on data collected March 2011 by Miriam Simon, winds in the area should be sufficient to supply power need for our given wind generator. • Materials should withstand environment and elements. • Capable of storing power even if no power-generating source is available.

32. Involvement of Locals • Fabrication of mechanical components • Obtain materials & tools • Specialty skills • i.e. welding • Installation • Running & connecting wires • Getting the turbine onto the shelter & securely attaching it

33. Documentation • User Instructions • Explanation of what each part is • Include schematics for electric and mechanical components • Translate into Spanish

34. Project Influences • Miriam Simon’s thesis defense presentation • YouTube • Video conferencing with Larry Overholt • Howard Greene’s presentation on the pre-design process • Defining the Problem→Brainstorming→SOW→Deliverables→Final Product • Roger Dzwonczyk’s presentation on management and documentation • Weekly group discussions

35. Questions?