1. Senior Design Team 12: Chase Bryant Alexandra Callich Jonathan Meyer-Senior Elliot Popper Rayford Rahming Christian Scott 1

2. Brake Failure Resulting in Blade and Structure Destruction 2

3. Brake Failure Resulting in an Explosion Structural Failure Resulting in Collapse 3

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6. 1. Horizontal-Axis 2. Savonius Vertical-Axis 3. Darreus Vertical-Axis 6

7. Turbine Concepts Concept 1Concept 2Concept 3 Weight ScoreWeightedScoreWeightedScoreWeighted Efficiency 14% 5 0.720.2830.42 Endurance 35% 41.410.351 Cost 20% 20.4512.50.5 Weight 14% 2.50.3540.564 Ease of operation 7% 4.50.31510.0720.14 Size 10% 20.240.430.3 ∑ = 3.365 ∑ = 2.66 ∑ = 2.27 7

8.  Manual Tilt and Cable Method 8

9. 3. Hinged-Cable Assisted 1. Quadruped Foundation with Hinged Tower 2. Reinforced-Traditional 9

10. Tower and Foundation Concepts Concept 1Concept 2Concept 3 Weight ScoreWeightedScoreWeightedScoreWeighted Cost 15% 4.50.67520.371.05 Construction 15% 81.220.32 Failure Resistance 50% 8.54.258494.5 Service Life 15% 71.057 40.6 Environmental 5% 8.50.42530.1570.35 ∑ = 7.6 ∑ = 5.8 ∑ = 6.8 10

11. Horizontal-Axis Turbine Quadruped-Foundation Hinged Tower with Counterweight Wind Turbine Systems Induction Generator System Control System Braking System Hydraulic Drive System 11

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14.  During high winds, turbine not  active  exposed  Structure durable in high winds  Ease of Fabrication and Construction  Ease of Access for Maintenance and Repairs 14

15.  Debris present at lowered position  Transportation will take longer due to heavier components  Hinge fatigue  Dilemma  Height Restriction 15

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17. 1. Cylinder chosen 2. System designed around cylinder and lift. Cylinder Parameter Units Value Volume gal0.297 Stroke in14 Diameter(bore) in2.5 Diameter(rod) in1.5 Flow Rate (desired) gpm1.487 Forces and Pressures on Cylinder Parameters Units Value Lift Force lbf300 Lift Pressure psi61.115 Retract Force lbf300 Retract Pressure psi95.493 Compressed air pressure psi214.38 Total Pressures psi~400 17

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20. 20 Arduino V in UpDownV out Hydraulic Pump Auto Relay Switch V Battery + -

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22. 22 HingeUpper Assembly Tower Leg Bearing

23. Microcontroller New Turbine Blades Wind Turbine – Induction Generator Data-Logging Anemometer 23

24. Hydraulic Cylinder Hydraulic Power Unit with Solenoid Control Switch 24

25. Located in Thomasville, GA. Southern Division focuses primarily on the Southeast Greg Orff – General Manager 25

26. Welding on Gusset Plates Completed Legs Cutting pipes at 60° angles 26

27. Drilling holes in Gusset Plates Completed Upper Assembly Welding of Upper Assembly 27

28. 28 Upper Assembly and Legs

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30. Video 30

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32.  At night Turbines display flashing red lights Wildlife  Birds  Scientists found that birds simply fly around the farm, or between the turbines; less than 1% are in danger of colliding with the giant structures.  Bats  Attracted to Turbines  Research on an Ultrasonic Deterrent underway 32

33.  Delays in component procurement  Minor design adjustments for machine shop production  Assistance needed in implementing electrical components  Output of anemometer difficult to work with  Discovery of permanent placement for prototype 33

34.  Successful design of turbine system for hurricane-prone regions  Fabrication of a prototype  Structurally sound with little to no stresses that may cause failure or fatigue  Fail-safes implemented to account for any malfunctions 34

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