1. Progress Report #3

2. Jesse VanderWees Civil Engineering Hannah van der Vorst Civil Engineering Dalton Veurink Mechanical Engineering Seth Koetje Mechanical Engineering 1

3. Outline Project Recap Nicaragua Trip Highlights Design Decisions Current Status Design Norms 2

4. Project Recap Issue Rural communities in Nicaragua lack access to clean water Our solution Disinfect water using a UV radiation system powered by solar panels 3 www.freshwatersystems.com

5. Nicaragua Trip Highlights World Renew Acción Médica Cristiana 4 communities 9 water samples community leaders systems in place 4

6. http://amcenglish.org/images/amcnicaraguamaplogoslr.jpg 5

7. Design Decisions: Disinfection Filtration 2 screens: 304 and 80 micron DuPont 5 micron filter UV Disinfection 4 log removal (99.99%) of giardia, cryptosporidium 1 log removal (90%) of viruses Flow rate: 1-2 gal/min 6 San Carlos Well Waspam Well

8. Design Decisions: Energy Renogy 150 W monocrystalline solar panel MPPT Charge Controller 35 AH lead acid battery Pure sine wave inverter Power generation 3 hr sunlight: 3 days power Connected to the grid 7

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10. Current Status Continuing Water tests Parts ordered Beginning assembly 9 www.renogy-store.com www.homedepot.com

11. Design Norms Stewardship Renewable energy Cultural appropriateness Fit the needs Caring Reduce diseases caused by water Humility Solve problem at hand Listen to local input 10