I like this idea.... Wind Hairs?
I like this idea.... Wind Hairs?
(OP)
http://atelierdna.com/?p=144
I'm not sure the technology exists for a long stack of piezoelectric elements that would have enough structural integrity for this, but it warrants some thought in my opinion.
I'm not sure the technology exists for a long stack of piezoelectric elements that would have enough structural integrity for this, but it warrants some thought in my opinion.
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RE: I like this idea.... Wind Hairs?
It would be nice if serious studies would show this (and other novel power production methods) to be truly practical.
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: I like this idea.... Wind Hairs?
Two energy extraction mechanism are described.
In one, the poles flex and apply stress to a piezo stack. In order for that to happen, the root of the pole must be fixed, or nearly so.
In the other, the poles wiggle around some indeterminate center in the base, where devices described as shock absorbers somehow generate not heat, but electricity, used to run a pump in each pole/base cell to provide cellular small scale pumped storage and hydro power generation.
Are the pole roots fixed, or pinned? Both, according to the writeup. Possibly both at once.
Back to the piezo stack, described as producing current. ... well, sort of. Piezo devices emit or absorb charge, depending on how they are stressed. There's only current when the stress is changing, and really not all that much current.
Wait, it gets more interesting. A piezo disk being compressed on a random edge, by bending the stack, would emit charge from that edge. ... and absorb charge on the diametrically opposite edge, and do neither at the quarter points where there's no net stress. So you can't, as postulated, just put large electrodes between the piezo discs, you'd need an array of electrodes, and more than the postulated two wires, or many diodes. Or circular arrays of piezo discs, not the single disc with a tension member through a hole in the center as postulated.
Again, the presentation is a thing of beauty. The right team of confi.., er, shyst..., er, croo.., er, managers, could turn that presentation into a career. All they need is an investor; there's one born every minute.
Mike Halloran
Pembroke Pines, FL, USA
RE: I like this idea.... Wind Hairs?
TTFN
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RE: I like this idea.... Wind Hairs?
Beautifully stated!
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: I like this idea.... Wind Hairs?
Fe
RE: I like this idea.... Wind Hairs?
I think I will build a small scale dididly waddle and see how she wags
Fe
RE: I like this idea.... Wind Hairs?
RE: I like this idea.... Wind Hairs?
Fe
RE: I like this idea.... Wind Hairs?
RE: I like this idea.... Wind Hairs?