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Aquarium Wave Generator

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  1. Aquarium Wave Generator Project # 589-04A Presented By: Aaron Goodwin Mike Pyrkosz Design Review April 15, 2004

  2. Water movement is one of the most important requirements for coral health 90 gallon tank shown

  3. Water movement is important • Corals are sessile animals (attached to rocks) • Moves food past them for capture • Removes waste and allows respiration to occur • Photosynthesis and calcification rates increase

  4. Selected DesignRotational Diverting Valve • Single inlet • Alternating outlets • Low geared motor drive • Single pump allowed to run continuously

  5. Design Revisions • Simplify machining • Reduce material cost • User friendly • O-ring seal • Disassembly for cleaning • Adjustable motor mounting plate

  6. Design Revisions • Variable speed controller • For prototype model only • Ease of installation

  7. Technical Analysis • O-ring selection EPDM selected for saltwater • Estimated flow to be 18 gpm (6 ft of head loss) • Fittings selected and sized for reduced losses • Removable submerged jet manifolds Area in = Area out

  8. Test Tank 120 gallon aquarium dimensions: 23”h x 18’d x 72”lg

  9. Test Tank Submerged jet manifold plumbing

  10. Pump Outlet (2 Places) Pump Intake Diverting Valve Magnetic Drive Pump Plumbing Schematic

  11. Test Tank Back of overflow box (above) Blueline HD 70 pump

  12. Test Plan • Visual flow indicators: streamers, neutrally buoyant dyes • Estimate in-tank flow velocity • Submerged jet manifold location • Check noise level

  13. Potential Problems • Possible o-ring failure • Gaps around cylinder at closed position • Verify theoretical concept • Valve body is bulky

  14. Progress to Date Actual 2/28/04 3/16/04 4/5/04 In progress Project Phase Prototype design Material acquisition Fabrication (revised) Testing (revised) Schedule 1/15/04 1/30/04 3/22/04 3/27/04

  15. Budget Original estimate: $1,315 Current expenditures: $1,484 Amount over: $ 169 Cost of production model: Materials $50 + 5 hours labor

  16. Questions?