On 11-02-2004 12:38 pm, you wrote:
Nov. 3, 04
Hello Forrest,
We developed the Watermotor specifically for your type of
situation.
Take a look at www.watermotor.net
The Watermotor is the only turbine with an instant on/off
power control switch allowing it to be used to directly drive machines.
Our model 150 has a bronze turgo wheel rated to 20 h.p. This is the
lowest cost per h.p. on the market.
The Watermotor web-site has a chart which allows you to
calculate power output and r.p.m.s with nozzles of several different
sizes. Please feel free to ask any questions you may have.
All the best,
Ron Davis
Campo Nuevo,
La Paz, Bolivia
>
>
> I have a unique piece of land that has a 100 year old cistern on top
of
> a waterfall. At some point I will re-establish the pipe and use the
> ~50' of head for power generation via a pelton wheel at the bottom. I
> am in no rush for power in the form of electricity since there is no
> dwelling on the property and I cann't justify replacing batteries
every
> couple years.
>
> However, we often camp on land and do heavy crafts (chain saw rustic
> furniture etc). It occurs to me that I can put a flow over wheel
> adjacent to the cistern and use it to drive an air compressor. I can
> bury some tanks in the ground for compressed air storage.
>
> From a control standpoint I suspect the wheel would stall once the
> stored pressure reaches a limit or I can put an pressure relief valve
> that dumps air into the water once it gets up to ~120psi. The fish
> wouldn't mind additional airation of the water!
>
> The compressed air would drive all sorts of air tools. It would
> probably be quite slow to recover a depleted tank, but that doesn't
> matter. I can always add tanks, or go fishing.
>
> I'm thinking I can find an old-fashioned (oil type) compressor that
> normally would have a 1-3 hp electric motor for a drive. My flow over
> water wheel will be about 5' diameter with ~50 gpm flow so the hp I
can
> deliver to the compressor will be a small fraction of what the
> compressor is capable of, however I will run it slower but with the
> same torque. The torque seems to be just a matter of pully
diameters.
>
> I question if air compressors are in-efficient if run slowly.
>
> If you have experience with this I'd love to get some feedback.
>
> Forrest Robinson
>
>
>
>
>
>
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