On Sat, 08 Sep 2007 01:41:39 +0000, Larry wrote:

Vic Smith wrote in
:

That's probably cheaper than store-bought. Do your parrots talk?
What do they actually *say* about that water?
BTW, I passed through Gila Bend, Arizona once. The cold water there
is about 120 F, and thick with minerals. I was in a grocery eyeing
the bottled water, but hate buying water. I asked the cashier if the
city water was safe, and she said "I've been drinking it 50 years, and
I'm doing just fine."
I said, "You misunderstand. I need it for my van's radiator."
As ugly as she was, I went ahead and bought a couple gallons.

snip heat exhanger/distiller stuff.

You should try something on that, but I'm pretty sure space and
complexity issues will keep it from happening.
What about cleaning up the RO issues you've pointed out.
Got anything for that?



Parrots both talk, INCESSANTLY. I wish they'd never learned....OR HEARD
AN ELECTRONIC TONE! Once learned, any sound is repeated, AD NAUSEUM!
It's only funny the first 3 days. Then it drives me CRAZY!

Luckily, there is an on-off switch! Simply cover the cages and they
sleep, giving you a break in blessed SILENCE! Too quiet at home? Get a
parrot!

Space is not a problem for an engine distiller. We simply replace the
water-cooling exhaust system with a primary boiler to suck the heat out
of the exhaust gasses, cooling the exhaust like we're doing now, by
making STEAM, not heating seawater. The same indirect engine cooling
system in use today, is replaced by a transmission oil primary loop
running at 300F, hot enough to heat a boiler to steam, and replace the
seawater cooling system with a seawater feedwater-to-steam plant,
complete with a backflush to wash out the salt when you shut it down.
The seawater steam condensor is simply a stainless steel version of the
freon condensor in any seawater cooled marine air condition you already
have on the boat. Seawater condenses the steam into pure water in a
stainless, not copper, pipe for collection and use. The heat transferred
to the seawater is dumped overboard or can be used to heat fresh water in
the water tank. Because steam gives up its heat in condensation, there's
LOTS of heat coming out of it.....nearly, we hope, 100% of the heat you
put in if there's no leakage...which is impossible. There's plenty of
hot seawater to heat the hot water tank on the way overboard.

A genset exhaust is also an excellent source for a seawater distiller
heat source....

Larry

Larry,

Explain that again in one syllable words for me :-)

As I understand what you are saying you mean to remove the present
water cooled exhaust manifold from the cooling system and replace it
with a heat exchanger device to heat what? Water to make steam or oil
to heat water to make steam? Or did I miss something there?

The reason I ask is because many years ago I maintained a distillation
plant that used exhaust heat to make steam. If I remember correctly
the primary power was a Perkins 4-108 diesel and it didn't make enough
exhaust heat to boil water at sea level atmospheric pressure. The
distillation vessel was heated as hot as possible using the exhaust
and then an engine driven vacuum pump dropped the pressure in the
still to create steam at temperatures lower then 212F.

Whether this was done to increase thruput or because exhaust heat
alone was not sufficient I do not recollect.

In any event, given the cost of reverse osmosis systems using engine
heat would seem rather attractive.







Bruce in Bangkok
(brucepaigeATgmailDOTcom)