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Posted by Morris Dovey on June 26, 2007, 7:29 am
 
gregvan wrote:

| Use an array of mirrors to focus sunlight on a tank containing
| seawater.  When the seawater boils,
| use the steam to drive a steam engine creating kinetic energy.

| Use the kinetic energy to drive a two water pumps. One
| would pump the pure water to farms
| and the other would fill the boiler tank with seawater.

Greg...

If you follow the link in my sig, you might find an approach for
dealing with those parts of your plan that involve producing kenetic
energy for pumping.

Raising water to the boiling point isn't actually necessary to the
production of kinetic energy, and neither are the inherent losses in a
turbine and pump system. In fact, for this work you might prefer a
flat-panel collector that will continue working (at reduced capacity)
when skies are overcast...

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/



Posted by Morris Dovey on June 26, 2007, 7:32 am
 
Morris Dovey wrote:
| If you follow the link in my sig

Doh! I guess the correct link would be more help...

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/StirlingProject.html



Posted by Morris Dovey on June 26, 2007, 9:23 am
 Morris Dovey wrote:

| http://www.iedu.com/DeSoto/StirlingProject.html

An update for anyone here who has been been following this slow-moving
project...

We've scaled the fluidyne up to use 4" schedule 40 PVC pipe and the
"behemoth" is working - not working as well as we want, but working.
Part of the problem is that we've only driven it with a 700W heat gun
and part of the problem is leaky joints due to builder inexperience.

There may be other problems waiting to be discovered, but we'll
eventually get 'em sorted out. We're hoping to be able to use this
version to demonstrate a (low-lift) pumping capacity in the
neighborhood of 50 gallons/minute - but even half of that would be
satisfying!

I'll post more photos when it's worth looking at.

Greg, better start getting your mirrors and boiler ready. :-)

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/StirlingProject.html



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