Here’s an idea. . . Build a giant fan with a 300-foot blade span. Raise it up about 300 feet off the ground and the prevailing winds will spin the fan and generate electricity. Nice idea! But what happens when you raise that much mass and torque so high off the ground? Maintenance happens. . . And you have to climb up 300 feet to fix it! Nobody talks about that! Or that these giant fans kill thousands of eagles each year. Not such a nice idea when you don’t even consider beauty and elegance in design as the ancient Hellenists did.
Look ma, no blades!
As the subtitle suggests, moving all the critical parts of a wind turbine up in the vicinity of the blades, resolves a number of difficult engineering problems. But now that these giant monolithic machines have grown so large with blades spanning the length of a football field, new problems replace the old ones in delivering electricity at a competitive cost.
Enter anemoi. . . a simpler and better idea. In fact, the only moving part located up where the prevailing winds are, is the scoop assembly you see over on the right. The assembly sits on a bearing that permits the air intake horn to spin. The oversized vertical blade forces the air intake to face into the prevailing wind, no matter what direction it’s coming from.
Einstein taught us that simpler is better. It doesn’t take a rocket scientist to figure out how it works. The air is going to be forced into air intake and then pushed down the inside cylinder, by the air behind it. The air is cool which means that the air isn’t fighting to turn around and try to go back up the inside cylinder.
When it reaches the bottom of the tower, a venturi compresses the air into a small area, making the air speed up. The venturi turbine spins because of the rushing wind which, connected through a gearbox, turns a generator and produces electricity. Generators get hot, but we pass the air exiting the venturi over the generator, bathing it and cooling it down. Then due to the rounded bottom, the air is ducted to the outside cylinder, which forces the air, now heated by the generator, up the outside cylinder. Solar energy heats the outside cylinder speeding up the air trying to rush out the top causing a vacuum behind it. This in turn compliments the pushing air behind it. The air exits back into the atmosphere and you’re able to watch Monday night football. Simple and better!
United States Patent #8207625