2. Problem

3. Global Water Crisis One billion people do not have access to clean drinking water. 3.6 million people die each year from water-related diseases. 98% of water-related deaths occur in the developing world. A person can only live for a few days without water.

4. Human Powered Modular System Create

5. Human Power Supply

6. For long duration / low intensity operations Human input = 0.1 hp Very sustainable for a healthy person Short duration / low intensity operations will not overly tire the operator For Short duration / high intensity operations Human input = 0.2 hp Sustainable for durations less than 3 hours Will leave the operator very tired after extended operation

7. Human Input Mechanism Goals Must comfortably seat a human for extended durations Highly efficient transfer of mechanical energy Design Criteria Portable Rigid Construction Multiple gear ratios

8. Modules Water Filtration Electricity Generator Irrigation Pump Millstone

9. Reverse Osmosis Purifies water Highly efficient Relatively low cost 4 stages of filtration Sediment filter Activated carbon filter RO membrane Activated carbon filter

10. Numerical Analysis Power requirement: P = Q*p (P: Power, Q: volumetric flow rate, p: pressure) p = 100 psi Q = 19 gal/hr P = 0.019 HP

11. UV Purification Disables reproduction of bacteria and viruses RO system filters out

12. UV Numerical Analysis

13. Electrical Generation Module Goal Charge various types of batteries up to 12V Provide a source of low current DC electricity for high efficiency light sources (LED based) Design Criteria Human input = 0.2 hp Expected efficiency = 30% Expected output = 4 Amps (for 12V)

14. Irrigation Module Goal Obtain unfiltered water from a remote source. Flow enough water to irrigate a small field Design Criteria Flow Rate, Q = 5 GPM Well Depth = 100 ft Human Input = 0.18 hp Reliable Long pump life Simple to maintain

15. Grist Mill Module Goal Use human input to grind grain Design Goals Must accept various types of grain Must be able to provide different levels of grind fineness Fine grinds to produce flower Coarse grinds to provide cornmeal