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Subject: Re: [world-cruising] Icy Choice
From: Rosalie B. (gmbeasley@XXX.XXX)
Date: Tue Jan 28 2003 - 19:36:54 EST
On Tue, 28 Jan 2003 19:42:21 -0000, you wrote:
>Hi folks! Just delurking for a moment to ask a question that I've
>wondered about, namely one about refrigeration.
>
>I'm not yet cruising, but things are headed that way and the plans
>have gotten to the point where I am thinking about making stuff cold.
>After a GREAT deal of research I've decided that I'd like to know what
>other people are doing :)
>
>It seems to me that a reverse cycle ammonia system would be the
>absolute best way to go, since I can power it with propane (or really
>anything that burns). Since I can get lots more stored energy in
>flammable gas/liquids than I can get via the sun/wind, and potentially
>more cheaply, and certainly more reliably (in a salt water
>environment) than an eletrically driven compression system I have
>currently thought to go with this sort of system. There is also the
>advantage that I can probably find a small industrial/commercial
>system like this for cheap money and 'Marinize' it. Essentially, this
>system would be making a block of freshwater ice for me in a well
>insulated box, which I would break out and use in my icebox for
>refrigeration. I will have no freezer, or if I do it will be very
>small. (like 1 cubic foot). Considering my thrifty ways, both units
>will be top loading.
Ammonia has the advantage of being extremely detectable well below
exposure limits in case of a leak. But I don't think I'd want it on
my boat.
>So, on to the question:
>
>What do you folks think is -the- way to go for refrigeration? There
>are many strategies and methods, but I was wondering what you folks
>out in the real world are using.
We have a dual engine driven/110 system. We can keep things cold, and
can keep things frozen, but can't keep ice cream or freeze anything.
We just don't have drinks with ice or ice cream unless ashore. It
makes a nice treat.
We also have way more refrigeration space than we actually need - 17
cubic feet. But that's what came with the boat.
grandma Rosalie
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