team 4 “flying wind turbine” jason landry bryan macdonald scott montgomerie daniel pollock...
TRANSCRIPT
Team 4“Flying Wind Turbine”
Jason LandryBryan MacDonaldScott Montgomerie
Daniel PollockRobert Ringrose
Dr. Dale Retallack
Team Members
Supervisor
3
Introduction
• Design a device that generates electricity using wind power at high elevations
• Capitalize on increased wind speed at higher elevation
4
Design
• Requirements– 100 Watt power output– No rigid structural support– Operate at elevations greater than 100ft– Transportable with a full-size pickup truck– Zero safety-related incidents– Total cost not to exceed $12000 CDN
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Wind Eagle
• Design advantages– Relative simplicity– High component efficiency
• Four major components– Kite– Turbine and frame– Tether & electrical line– Ground equipment
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Kite
• Component Requirements– At least 40 lb of lift– High flight stability– Low weight to reduce size
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Kite
• Flat Plate Analysis Performed– Laminar flow, no skin drag– Lift =
– Drag =
• 19 ft Delta Kite chosen– 15 km/h: 36 lb lift– 20 km/h: 64 lb lift
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2
1VACL
2
2
1VACD
Courtesy of www.awindofchange.com
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Turbine and Frame
• Component Requirements– 100W power output in 20 km/h winds– Low weight– Physical size– Turbine brake– Turbine blade guard– Self-adjusting to wind direction
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Turbine and Frame
• 24V AirX 403 Wind Turbine– 400 Watts in 45 km/h winds
• Electromechanical brake– Activated from ground via switch
• Aluminum frame– Built around turbine– Vane & flex legs– Estimated weight = 20 lbs
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Tether and Electrical Line
• Component Requirements– Low weight – Small diameter– High strength– Minimal power loss
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Tether and Electrical Line
• Synthetic Fiber Rope– 750 lb load limit– 0.13 lb/100 ft– 1.75 mm dia.
• Electrical Cable– 14 AWG 3-phase – 13% power loss
• 100 Watts• 300 ft of cable
Courtesy ofwww.thecortlandcompanies.com
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Ground Equipment
• Component Requirements– Easily transported– High speed retrieval– Load capacity with SF > 3– Power monitoring & energy storage – Radio controller
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Ground Equipment
• Manual winch– Steel construction– 1:1, 2:1, & 1:2 gear ratios– Band brake
• Electrical– Batteries– Multimeters– Switch
15
Ground Equipment
• Input torque– 1:1 ratio
• T = 125lb*1/3 ft = 42 ft-lb
– 2:1 ratio• T = 21 ft-lb
• Main shaft bending stress– 2 pillow block bearings
• σ = 63,800 psi
– 4 pillow block bearings• σ = 9,100 psi
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Conclusion
• Design a device that generates electricity using wind power at high elevations
• Wind Eagle design chosen
• Part procurement to begin shortly
• Full prototype testing March 2007