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Posted by no spam on September 28, 2006, 11:43 am

Seeing as how ammonia coolers were being built in the mid 1900's building
them today in any modern home shop would be no problem.  At the bottom of
this msg are a couple of websites showing how to make 'intermittent cycle'
coolers to make ice.  The second requires nothing more than welding.  Which
you could have done in almost any town in the US for a few bucks.

One problem I'm having is finding a plan with enough details on a continuous
cycle cooler's set up.  Mainly how to regulate the flow of the liquid NH3
into the evaporator and how to make sure the flow in one way.

Posted by Joe Fischer on September 27, 2006, 7:39 pm

          It does have a distinctive smell, so if you smell it,
hold your breath and run like hell.

           It might even pay to practice to see how long
breathe can be held and how far one can run in that time.  :-)

Joe Fischer

Posted by daestrom on September 27, 2006, 9:43 pm

Since you work with a lot of it, I suspect you've had some safety training
on the subject.  Maybe have an eye-wash or emergency shower station nearby
in case you get some on you.  And the folks that service it are competent
about fittings/connections/etc... and proper leak testing.  The local water
treatment folks here have 'tons' of the stuff sitting outside the treatment
plant.  A FEMA drill a couple years back centered around an 'accident' with
one of the casks.  Many fire departments also 'drill' for such accidents
with railroad cars of the stuff in various forms.  Perparation and training
means the hazard can be contained and handled correctly.

It's 'scary' for those that don't know what their doing (or only *think*
they know what they're doing).  Kind of like 'rocket science' or 'nuclear
power'.  Scary in the wrong hands, relatively safe in the right hands.


Posted by Anthony Matonak on September 28, 2006, 12:35 am
 daestrom wrote:

You will note that few homes have either rocket or nuclear
fuel on the property. Nor would they be permitted by whatever
authorities regulate these things.


Posted by daestrom on September 28, 2006, 12:50 am

That is to say, 'John Q. Public' is the 'wrong hands'.  I would say the same
thing about ammonia.  John Q Public is not knowledgable enough about it to
be tinkering around with it.


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