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Solar Powered Water Pump
- 1. Solar Powered WaterPumping in Senegal Kristen Woznick Andrew Kriebel Ahmed Al Haddad College of Engineering Penn State University 3 December 2012 http://www.practica.org/services/r-d/thermal-solar-pumps/
- 2. This presentation coverstwo yields of the project that is used to provide solar powered water pumping to Senegal Interactive spreadsheet Prototype of a low cost alternative design 2
- 3. A project schedulelaid out the steps and timeline for project milestones Research & Background Concept Generation Concept Development Prototyping 3
- 4. The first taskwas to archive existing solar powered pumps in a searchable database Archive company, model no., lift, output, etc 4
- 5. Started with database which archives 64 submersible pumps from 9 manufacturers with important criteria Company Model # Input Elec. Max Lift Output @ Max Lift Max Output Lift @ Max Output Weight 5
- 6. What do theseinput values specify 6
- 7. Changes to thedatabase improved functionality with criteria input with the searching function Drop-down menus for the input criteria Macro-enabled “find My Pump” button Output of correct pump that matches the input criteria 7
- 8. Future Considerations We ask: If someone enters a set of requirements that are above one capability, but below another, would you be able to suggest the one that has more than the asked for requirements? 8
- 10. The second taskis to innovate and prototype a solar powered pump to meet the needs of a farm in Senegal SUN’S ENERGY ENGINE/P UMP 20 cubic ASSEMBLY meters 1.2 – 1.6 m per day CROPS 20 m 2m WATER 10
- 11. Based around agamma stirling engine, our design was to use the heat of the sun to create the work to drive a pump SOLAR GAMMA SUN IN HEAT TO STIRLING ENGINE ENGINE SOLAR DISH TO CROPS WATER COOLS HIGH SPEED ENGINE LOW TORQUE WORK PULLEY/GEAR LOWER SPEED HIGHER TORQUE WORK PUMP 11 WELL WATER
- 12. Using gamma enginemodels, a Solidworks model was constructed to study the motion Compression Ratios Critical Lengths 12
- 13. A non-walking beamgamma engine was settled upon and modeled as our engine DISPLACER POWER PISTON EXPANSION COMPRESION HEAT WORK OUT COLD 13
- 15. The gamma engineis incorporated into the assembly design with the solar dish, ‘gear’ system, and pump 15
- 16. The gamma engineis incorporated into the assembly design with the solar dish, ‘gear’ system, and pump Solar Collecting Dish Hot End of Engine Cool Side with Water Gamma Engine ‘Gear’ System Water Pipe Mechanical Pump 16
- 17. The gamma engineis incorporated into the assembly design with the solar dish, ‘gear’ system, and pump 17
- 19. The design iseasy to assemble, features available materials, and only requires basic machining 19
- 20. The design iseasy to assemble, features available materials, and only requires basic machining 20
- 21. The prototype isproof of engine function and pump design, but lacks the torque necessary to function as an assembly ✔ Gamma Engine Function – Heat to Work ✔ Pump Function – Movement of Water - Solar Collector X Connection Engine to Pump X Full Function 21
- 22. To improve performance,it is necessary to make several changes to the design Higher Heat Differential HOT COLD Multiple Cylinders 22
- 24. Ideal Carnot EngineEfficiency “A calculation using the Carnot cycle formula shows that an engine operating with a source temperature of 100 °C and a sink temperature of 35 °C gives a maximum thermal efficiency of about 17.42%.” Efficiency:
- 25. Real Engine Efficiencyand Power Output Factors to Consider: • Friction • Gas Leak • Temperature
- 26. Parabolic Dish Dimensions “Theaverage energy flux at this distance on a surface perpendicular to the sun's rays is about 1353 W/m2.” ENERGY = POWER x TIME
- 27. Calculations Pwhp =q h sg / 3960 = (7.34)(65.6)(1)/3960 = .122 HP = 90.7 W 90.7W/.17 = 533.53 W Solar Dish: 1353W/m²/533.53 = .4m² 1443.K
- 28. Goal: EngineEfficiency Range: 30-40% (1000-1500K) (2000-4000 RPM) Lift Power: 110 W Future Teams?
- 29. The solar waterpumping project is currently a rough proof of concept, but on track for further design iterations Interactive pump Database Developed a Concept and a Feasible Design Prototype and Test Concept Future Steps 29
- 30.