This has be done before it's commonly referred to the 'ladder mill'. Or, maybe I should say it has not been done, but has been patented several times as far back as 1972. The reason it has not be done, is because it's not an efficient way to extract power from air flow.
If you were going to spend money to extract power from air flow, you would compare this to a rotating blade an see that the return on investment dictated a rotating blade. Then you might think about a vertical axis wind turbine and see that the return on investment dictated a horizontal axis wind turbine. You might think about putting a shroud, end plates, funnels, or whatever on your wind turbine and find that it would be much cheaper to simply extend the blades a little longer.
There is a reason all wind turbines look pretty much alike, the laws of physics and economics dictate how they look.
Rob, but windmills may not be suitable for all cities or places. I my place we had implemented wind farms at certain areas, where wind is available atleast for 200 days/year. Other areas EB (Electricity Board) has instated solar panels for power generation. In certain places, they had implemented hybrid model, consisting of both windmill and solar.
"You don't normally find a wind turbine in the middle of a large metropolitan area, .......... has developed a wind turbine that can be positioned between, or atop, skyscrapers and large buildings to harvest wind areas in urban areas."
Elizabeth, but in my country we can see small wind mills over most of the buildings as a part of hybrid power generator. They used to install small turbine type windmill (hybrid mode) along with solar panels to generate power.
Nice story, Elizabeth. Interesting that wind could deliver half the world's energy needs by 2030. I'm sure that would require advances in technology. This window-based energy collector may be a contribution to that.
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