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Originally Posted by jakobnev
No why would wind want go down that silly tube when it could go around it more easily?
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It appears to consist of 8 exponential horns, which couple well with the ambient air, in a cluster. Once the mass of air enters the orifice it is (IMHO) easier to change the direction than it's speed. Only two or three openings will be accepting incoming air. The others will be trying to revert it.
They drop the ball there though—the horns should spiral around each other so the mass of air is moving counter-clockwise (in the Northern hemisphere, clockwise in the Southern) as it falls. This would create a Gravity Vortex. They're leaving free energy on the table.
The elbow is just stupid. If they made the tower taller instead, it would improve the performance. The turbine should have a centrifugal exhaust, or at the very least a bellmouth.
This is all very easy to see from the comfort of my armchair.
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Originally Posted by ChazInMT
I question their passive collection system, it seems they could implement a larger "Wind Scoop" that rotates to face the wind which would make it more effective for a given amount of building materials.
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Ya know those ball-shaped rotating ventilators you see on the top of warehouses?
A big one of those, only mounted solid so it won't turn. An exhaust elbow on the top that weathervanes so it always points downwind. A vertical shaft in the middle with a bunch of paddle wheels on it.
Voila.