Theoretical Consideration Choose the best design Study the efficiency of energy conversion at specific speed. Power Coefficient Tip Speed Ratio Conversion from Mechanical to Electrical Power
Theoretical Consideration Control Variables – Pitch & Twist Angle (determines C d & C l ) – Air-foil Design Input – Current (= Torque) – Ambient Flow (=Fan Speed) – Blade’s Angular Velocity(=Motor Speed) Output – Torque Constants – Air Temperature & density, – Atmospheric pressure (=Reynold’s Number)
Generator on CalTrain/Bart 80mph (130km/h) 10cars Rail Cost/passenger mile $0.323 Daily Ridership = Attach 10 AB rotors/car Aid the electricity amount