Basically, a wind turbine's connected to a car alternator.
weight of turbine=72 kg
length of blade-30 cm.
What is required, is the amt of power this wind turbine will produce when the car (to which turbine is attached) is moving at:
a) constant speed
b) variable speed
Not sure whether to use Power=1/2 ρ*Cd*A*(v^2) for wind turbines, or Pressure=0.6*(v^2)for wind pressure on blades. Help please? (If I use the pressure one, we can calculate wind load and power for a set time)
The Attempt at a Solution
I tried solving it both ways because I'm not sure which one to use, and I'm getting totally different values!. A little help please?