Team 4“Flying Wind Turbine”

Jason LandryBryan MacDonaldScott Montgomerie

Daniel PollockRobert Ringrose

Dr. Dale Retallack

Team Members

Supervisor

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Overview

• Introduction

• Design

• Budget

• Schedule

• Issues

• Conclusion

• Questions

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Introduction

• Design a device that generates electricity using wind power at high elevations

• Capitalize on increased wind speed at higher elevation

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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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Alternatives

Cups of WindAerofoil

VAWT

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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

2

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

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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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Budget

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Schedule

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Issues

• Device weight control

• Turbine blade guard

• Unknown kite dynamics

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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

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Thanks to our sponsors

Questions?