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Help: Need Simplest possible solar water heater - Page 5

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Posted by J. Clarke on February 22, 2008, 1:45 am
 
Rob Dekker wrote:

This is container http://www.flickr.com/photos/mannydiller/14734487/

This is an apartment block made out of them
http://www.flickr.com/photos/toddsheridan/120470208/



to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)



Posted by Morris Dovey on February 22, 2008, 12:12 pm
 
David Williams wrote:


Trying...

   http://www.iedu.com/DeSoto/Stirling/Dyne.html
   http://www.iedu.com/DeSoto/Stirling/Pump.html

AFAICT, it should be possible to build a smaller version using
tubing and tin cans (powered by some of the heat collected) as a
circulator pump...

:-)

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

Posted by KLS on February 22, 2008, 12:12 pm
 On Thu, 21 Feb 2008 22:10:38 -0600, david.williams@bayman.org (David
Williams) wrote:


Hear, hear.  Waiting with bated (baited?) breath to read some of
JClarke's ideas (or was the shipping container one the extent of
them?).

Posted by J. Clarke on February 22, 2008, 2:12 pm
 KLS wrote:

What "shipping container one"?  I didn't suggest anything involving a
shipping container, and in fact I don't recall anybody doing so.

I don't live in Africa and I've never been there.  I know enough to
have a fairly good idea what won't work (the income figures are
readily available for South Africa, and it must be remembered that by
African standards South Africans are _rich_) but I don't know enough
about what is and is not readily available there to be able to come up
with anything that is likely to be doable.

I do know that far too many Western "experts" have gone to Africa with
the intent of solving their problems only to find out that their
solutions just plain were not viable.  I'm not arrogant enough to try
to be one of those experts.

As for "thinking of difficulties", asking someone to give the costs
for what he is proposing is not "thinking of difficulties", it's
asking for a cost estimate.  If you think that that's an undue burden
then God help you if you ever get jobs with real companies that
involve product development.

--
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)



Posted by Blue Cat on February 22, 2008, 2:42 pm
 

How about a temporary "Quick and dirty" solution that is low-tech: About 30
meters of dark colored garden hose up on your roof, then connected to a
faucet or a tank. Not so elegant, but you can get a handle on what type of
heat the sun can provide.



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