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Human Powered

Modular System. Human Powered. Providing Basic Needs for Developing Countries. Dustin Drake, Alfonso Liguori , Jeremy Smith Florida Atlantic University Department of Ocean and Mechanical Engineering. Problem. Global Water Crisis.

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Human Powered

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  1. Modular System Human Powered Providing Basic Needs for Developing Countries Dustin Drake, Alfonso Liguori, Jeremy Smith Florida Atlantic University Department of Ocean and Mechanical Engineering

  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. Human Power Supply • 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

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