On Sun, 10 Jul 2005 18:32:24 -0700, Jim Richardson
wrote:

On Sun, 10 Jul 2005 20:47:35 -0400,
Larry wrote:
Keith Hughes wrote in
:

to 600-650 psig, and they still have leakage problems.


I love my distillers....
I love my distillers....
I love my distillers....
I love my distillers....
I love my distillers....



How much power does it take to make a gallon of fresh water from
seawater with your distillers?


Hmmm...let's pencil in the numbers on back of an envelope.

A (US) gallon of water is 8 lb that's 8/2.2 kg = 3.636kg = 3636 gm

From 20 degC, it takes 80 cal to get to BP then 540 cal/gm to get to
steam. Totals....3636 X (80 + 540) = 2.254 Mcal = 9.5 MJ

So if you could be happy with one gal/hr, it would take
9.5 MJ.hr or 9.5MJ / 60X 60 = 2.63 kilowatts.

But some or all those heating watts could maybe get returned to the
feedwater from the distilled water, and that's the trick to cutting
the power consumption of a still. Or how about a low vacuum process,
so the water feed boils at low temp?

Brian Whatcott Altus, OK