Tree Wind Generator
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From: Paul Hovnanian P.E. on 16 Apr 2010 20:03 Dirk Bruere at NeoPax wrote: > > An idea I've had for years, but never tried and never seen anyone else > do it either. > Simple idea - capture the energy of a tall tree swaying in the wind. > Rough numbers: 200kg force (2kN) through 0.3m every 2 seconds is > potentially around 330W. > > Tie a line to the top of the tree to ground via a spring. Use the > movement of the tether to drive a ratchet connected to a generator. > > Anyone know of anything similar? I've heard of a micro power generator based on a paddle that waves back and forth in eddies in a stream. The generator part is a magnet and coil, similar to one of those shake flashlights. No ratchet is needed. Just let the generator rotate back and forth, producing AC. Then rectify it. Less moving parts, more reliable. -- Paul Hovnanian mailto:Paul(a)Hovnanian.com ------------------------------------------------------------------ Only through suffering comes wisdom. -- Zeus
From: Dirk Bruere at NeoPax on 16 Apr 2010 22:16 On 17/04/2010 01:03, Paul Hovnanian P.E. wrote: > Dirk Bruere at NeoPax wrote: >> >> An idea I've had for years, but never tried and never seen anyone else >> do it either. >> Simple idea - capture the energy of a tall tree swaying in the wind. >> Rough numbers: 200kg force (2kN) through 0.3m every 2 seconds is >> potentially around 330W. >> >> Tie a line to the top of the tree to ground via a spring. Use the >> movement of the tether to drive a ratchet connected to a generator. >> >> Anyone know of anything similar? > > I've heard of a micro power generator based on a paddle that waves back > and forth in eddies in a stream. The generator part is a magnet and > coil, similar to one of those shake flashlights. > > No ratchet is needed. Just let the generator rotate back and forth, > producing AC. Then rectify it. Less moving parts, more reliable. > The question is how to turn massive force short stroke, low velocity movement into energy efficiently. A simple magnet and coil would not work well at all. -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: George Herold on 16 Apr 2010 22:25 On Apr 16, 5:34 pm, Dirk Bruere at NeoPax <dirk.bru...(a)gmail.com> wrote: > An idea I've had for years, but never tried and never seen anyone else > do it either. > Simple idea - capture the energy of a tall tree swaying in the wind. > Rough numbers: 200kg force (2kN) through 0.3m every 2 seconds is > potentially around 330W. > > Tie a line to the top of the tree to ground via a spring. Use the > movement of the tether to drive a ratchet connected to a generator. > > Anyone know of anything similar? > > -- > Dirk > > http://www.transcendence.me.uk/- Transcendence UKhttp://www.blogtalkradio..com/onetribe- Occult Talk Show Trees only shake a lot in high winds. A wind generator needs to work in light winds. There's a 'forest' of man made wind turbines that I see every day driving home. I think that 90-95% of the time they are spinning... I look at the tree's, sometimes I can't even see the if leaves are blowing. George H.
From: Dirk Bruere at NeoPax on 16 Apr 2010 23:12 On 17/04/2010 03:25, George Herold wrote: > On Apr 16, 5:34 pm, Dirk Bruere at NeoPax<dirk.bru...(a)gmail.com> > wrote: >> An idea I've had for years, but never tried and never seen anyone else >> do it either. >> Simple idea - capture the energy of a tall tree swaying in the wind. >> Rough numbers: 200kg force (2kN) through 0.3m every 2 seconds is >> potentially around 330W. >> >> Tie a line to the top of the tree to ground via a spring. Use the >> movement of the tether to drive a ratchet connected to a generator. >> >> Anyone know of anything similar? >> >> -- >> Dirk >> >> http://www.transcendence.me.uk/- Transcendence UKhttp://www.blogtalkradio.com/onetribe- Occult Talk Show > > Trees only shake a lot in high winds. A wind generator needs to work > in light winds. There's a 'forest' of man made wind turbines that I > see every day driving home. I think that 90-95% of the time they are > spinning... I look at the tree's, sometimes I can't even see the if > leaves are blowing. But a tree is a lot cheaper than a wind turbine on all counts. It would be quite easy to make a portable unit for camping, or recharging batteries off-grid. A cheap fill-in for PV. -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: mpm on 17 Apr 2010 00:45
On Apr 16, 4:34 pm, Dirk Bruere at NeoPax <dirk.bru...(a)gmail.com> wrote: > An idea I've had for years, but never tried and never seen anyone else > do it either. > Simple idea - capture the energy of a tall tree swaying in the wind. > Rough numbers: 200kg force (2kN) through 0.3m every 2 seconds is > potentially around 330W. > > Tie a line to the top of the tree to ground via a spring. Use the > movement of the tether to drive a ratchet connected to a generator. > > Anyone know of anything similar? > > -- > Dirk > > http://www.transcendence.me.uk/- Transcendence UKhttp://www.blogtalkradio..com/onetribe- Occult Talk Show Didn't E.T. do something like that in the woods to phone home? -mpm |