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Originally Posted by HydrogenBond
There is another low tech condenser design that would work in hot dry desert climites. This is based on the principle behind a cooling sack.
This is an ancient technique for making cool water in the desert. The sack is composed of an animal skin that seeps water causing the outer surface of the sack to stay damp feeling.
This seepage (sweat) will evaporate and absorb heat.
The temperature of the water in the sack can drop 20-30 degrees F below the ambient air depending on humidity-evaporation. The cooling sack could be designed with a salt water outer shell, that will cool an interior compartment so It can be used as condenser.
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This is a good idea that I have considered.
in Australia it is called a "Coolgardie safe"
SEE:
http://forums.permaculture.org.au/vi...=refrigeration
It could easily be used in conjuction with a solar still.
