Most wind generators use blades that look kind of like a prop plane’s propeller working in reverse, but that’s changing based on new aerodynamic research from Siemens. The result is a trio of add-ons for an existing wind turbine’s blades, which increases efficiency without costly replacement.
Scoop-like blade extensions called DinoTails are the first of the three upgrades, and increase the lift of the blade while adding a serrated edge that reduces the noise generated by the blade cutting through the air. DinoShells, on the other hand, are snow shovel-shaped scoops that add drive down near where the blade attaches to the main body of the generator. Finally, Vortex Generators are small fins that keep the air in contact with the blade for longer, further increasing lift.
via DVICE
