arnyk wrote: > At the least wind turbines can extract energy from wind without slowing > it, as they can extract significant energy by just making the wind > turbulent, thus increasing its entropy.
The wind turbine can't extract any energy without slowing the wind down - as the wind passes the turbine disk there is a step change in wind speed, with the change in kinetic energy of the wind being where the power comes from. Producing turbulence - initially in the form of bound and tip vortices - is an essential part of generating lift and power, fundamentally limiting the efficiency of the energy conversion. ------------------------------------------------------------------------ utgg's Profile: http://forums.slimdevices.com/member.php?userid=40900 View this thread: http://forums.slimdevices.com/showthread.php?t=104207 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
