Tagged Questions
9
votes
1answer
347 views
Energy from man-made tornadoes
Peter Thiel just paid $300,000 to Canadian inventor Louis Michaud who is working to construct useful "man-made tornadoes" or "atmospheric vortex engines" which could be components of future power ...
4
votes
1answer
158 views
Does water need to pumped up from deep ocean?
OTEC (Ocean Thermal Energy Conversion) utilizes the temperature gradient between cold deep ocean water, and warmer water to do work. I understand the pressure in the depths may be as high as a couple ...
3
votes
1answer
324 views
Wind Turbine Impact
OK, I'm not sure this is not a silly question, but here goes.
I've often wondered what the impact is of wind turbines on the weather. My question is, since wind turbines transform wind energy into ...
9
votes
3answers
153 views
What does the quantification of causes and effect look like, for clouds in offshore wind turbine wakes?
At Horns Rev windfarm off the coast of Denmark, sometimes in winter, clouds appears in the wake of the turbines. I've only seen photos of the phenomenon when the wind direction is exactly aligned with ...
6
votes
5answers
753 views
Why do blades of windturbine propellers as comp. to propellers of ships cover very different areas?
This is a thought I asked myself often, but never did real efforts
to get an answer. Barsmonsters question about number of fans of a
wind turbine made me think of it again
Why do blades of aircraft ...
22
votes
3answers
877 views
Wind generators - why so few blades?
Why commercial wind generators usually have just 2-3 blades?
Having more blades would allow to increase power OR decrease diameter.
Decreased diameter would also reduce stress due to different wind ...
0
votes
1answer
195 views
What is it that makes this structure cause turbulence?
I'm trying to design a quasi-simple vertical axis wind turbine, and a coworker came up with this design to focus the wind as it reaches the turbine in a wind tunnel. He says that there's going to be ...
