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For some reason I feel senile: Didn't I post this idea
Ground based sail or parachute for electricity generation
- along sides of tall buildings where it's always extremely
windy, on roof tops, and instead of the giant wind
turbines in Denmark and the Golan Heights.
could either be from some type of
pressure-to-electricity device (like a piezoelectric
microphone...), or from a slow moving arm with
transmission to a regular mechanical generator, (and
returning to zero position only when wind recedes once
in while) or, similar to a sail ship going against the wind,
is turned this way and that (a bit like a flapping wing)
now and then.
Prior art see links (Wingmill, wind sail)
[pashute, Mar 12 2010]
Windbelt - Wind flutter (oscilator) generator
The wind turbine alterntive [pashute, Mar 12 2010]
Shade-roof wind electric generator
Something like this... [pashute, Aug 23 2011]
Saphon read the halfbakery and made a product
[pashute, Dec 05 2012]
simple sail generator
Wind Sail Generator
[DarkEnergy]'s idea from 2003 [pashute, Dec 05 2012]
Wind sail-ship generator
[pashute, Dec 05 2012]
[FlyingToaster, Dec 05 2012]
Gyroscopic wind turbine
similar but more complex to create [pashute, Jul 18 2015]
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Description (displayed with the short name and URL.)
||A microphone converts pressure ~change~ into signal, not pressure into electricity.
||An aperture is a hole. How does this move slowly and connect to a "regular generator?
||There seem to be a number of holes in the how-it-works area of this invention. One is left wondering how it improves upon a regular wind turbine in the same location, or indeed if it functions at all. Further explication is welcomed.
||changed to 'arm'. Don't know what word I originally
had in mind. Is it clear now?
||A second attempt at explaining. Instead of a wind
turbine, just use a large shade roof.
When it billows up and down, a rope or arm from the
middle is pulled or pushed, turning an electric
||I made an image (posting it on links soon) see link.
||A company called Saphon seems to have read this
idea and have applied for a patent on it. They call it
Zero Blade Technology. [link]
||Seems [DarkEnergy] preceded me here in HB by 7
years. Don't know how I missed that. [link]
||Then [dameion] came up with a ship (and
underwater turbine generator producing hydrogen)
instead of land as the stabilizer and hydraulic power
or a ratchet system for stabilizing and storing the
power input. [link]
||//A microphone converts pressure ~change~ into
signal, not pressure into electricity.//
||That is true of condenser microphones, which
barely move, and therefore accurately record
||There exist microphones that record absolute
pressure. They have no low-frequency rolloff
whatsoever, which is cool. But they do not
generate power from static pressure; that is not
||There are also ribbon microphones, which (as
closely as possible) measure air movement rather
||Naturally, the two extremes - pure pressure
sensing without movement, and pure movement
sensing without pressure - are not capable of
generating power. But dynamic microphones do
generate power, from a combination of pressure
and movement. Of course, this results in the
precise measurement of neither, imparting
distortion which, in part, allows a sound
technician to make even the best musician sound