Richard Casady wrote in
:

On Sat, 18 Apr 2009 21:58:43 -0400, "Wilbur Hubbard"
wrote:

This is far more than proper distilled water using heat and condensation.

They used to make stills that ran off the exhaust heat from engine or
generator. They would give you several gallons of water for each
gallon of fuel burned. The evaporators on ships used to use the heat
from condensing water to boil more water at reduced pressure. They had
so called quadruple effect evaporators.

Casady


They also have vacuum evaporators. It takes lots less heat to make steam
in a vacuum. It's really too bad boats waste all that heat overboard
cooling the exhaust with seawater and just dumping it, instead of
converting it to steam and condensing drinking water.

I suspect they think the boaters too lazy to operate such a system that
requires constant flushing and manual maintenance, which it does.



--
================================================== ==========
Larry

I've decided to worship Thor. My god has a hammer and isn't
afraid to use it. Your god is a pacifist who got nailed to a
tree.

Any questions?