Re: <12volt fan was Re: 40 W thermoelectric power

[Peter Singfield <snkm@btl.net>]

At 08:22 AM 11/27/2002 +1300, Ian wrote:
>
>On Tuesday, November 26, 2002, at 04:30  pm, Paul S. Anderson wrote:
>
>> I have used several types of forced air.
>
>Anyone thought to use clockwork power for a fan?
>
>

Brilliant Ian -- simply brilliant!

Have appended a note I sent to Dean off-list along these same "interesting"
lines.

Peter -- Belize

**********appended****************

Dear Dean;

Really think this idea is "cute":

>1.) LED's powered by a gravity
>driven generator, a heavy weight hauled up a tree when lights are needed.

Easy to magnify this by using a hand winch.

Or even a simple steam cylinder??

Or how about a single stroke cylinder using butane.

During the day -- sun hits it -- weight is lifted. At night -- it cools --
retracting.

Further -- power out of both "strokes" -- up during the day -- down at night.

No valves -- crank -- etc.

Anyway -- beats a battery!

Prior Art??

Well it certainly worked for powering clocks for 100's of years! 

clock work inertial drive??

Love it!!

Peter

At 04:15 AM 11/18/2002 -0800, you wrote:
>Dear Peter, et al.,
>
>I used PV panels in Mexico for lighting but ended up looking for other
>appropriate technology alternatives, built on site and repairable there...
>Two possibilities that seem reasonable are: 1.) LED's powered by a gravity
>driven generator, a heavy weight hauled up a tree when lights are needed. Or
>2.) a twig burning lantern, using the downfeed Rocket pattern. Long twigs
>burn and the flames enter a vertical chimney that is peppered with holes, or
>vertical slits, showing light through a glass cover. I'll try to interest a
>student to pursue these ideas this winter.
>
>Best,
>
>Dean
>
>
>
>


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