The Turbinator! Hasta la windmill, baby. The Team Keshia Agazuma Corie Davis Alex James Jamison Trent Lee West The Device Fan Blades attached to pulley system Pulley connected to magnets of the generator Turning of the magnets induce an electric current in the coil Mechanical and Electrical Components The fan blades turning produces rotational kinetic energy which is transferred through the pulley system to turn the magnets. The magnets’ motion produces a magnetic field which then induces an electric current along the wire Efficiency P = 0.5 x ρ x A x Cp x V^3 x Ng x Nb P = power in watts (746 watts = 1 hp) (1,000 watts = 1 kilowatt) ρ = air density A = rotor swept area, exposed to the wind (m2) Cp = Coefficient of performance V = wind speed in meters/sec Ng = generator efficiency Nb = gearbox/bearings efficiency Efficiency P = 0.5*1.164*0.0248*0.35*1.7^3*Ng*0.80 Power was measured to be 0.00288 W Solving for Ng (generator efficiency) this gives a value of 0.15 or 15% Design and Construction Issues Negating friction that is caused by the pulley turning against the wood. Attaching the coil so that the magnets can spin freely. Bearing accidentally immobilized with super glue. Magnets too heavy Conclusions Wind from fan is not that powerful, design must be light. Stronger Magnets + More Coil = More Power Complicated design produces more problems than benefits.