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Art,<br>
<br>
<br>
<div class="moz-cite-prefix">On 8/15/2014 10:15 AM, Art Krenzel
wrote:<br>
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<div dir="ltr">The number of absorption refrigerators (ACR) number
in the tens of thousands in just the RV market alone today as
just one example. Virtually every RV you see on the road in the
US has some form of a small ammonia based cooler/refrigerator in
it. Sales are both in the new and the retrofit markets. ACR
refrigerators have a more finite life and are subject to early
failure from abuse and operations while not properly level.</div>
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<br>
Good to hear from you again. I hope all is well.<br>
<br>
Yes, I know about the availability of such ACR (absorption cycle
refrigeration) units for RVs. There is a place just north of me that
sells them, for example, and if you recall, you and I discussed this
previously, in October of last year, on the Digestion list. <br>
<br>
My point was poorly stated. When I said that "few ACR refrigerators
are still manufactured...," it was in the context of the
Einstein/Szilárd patents. I meant that, as far as I know, very few
types of completely passive ACR refrigerators (i.e. as classified by
the technology used) are presently manufactured, and those that are
presently manufactured do not use high efficiency passive ACR
technology. The nod, rather, is given to being [relatively] rugged,
cheap to manufacture, and so on. Sorry for not speaking with greater
clarity.<br>
<br>
Thus, in order to gain the benefit of related/different ACR
technologies, one needs a machine shop, knowledge, skill, et al....
or at least as far as I know.<br>
<br>
Obviously I don't have tech data on all units now available, but if
memory serves, a COP of rather less than 1 is fairly common for
these units. Do you know of any passive technology, actively
manufactured ACRs that do better?<br>
<br>
<br>
d.<br>
<div class="moz-signature">-- <br>
<div style="font:Georgia" ;=""><span style="font-size:110%;">David
William House<br>
</span>
<div style="padding-left:3em;font-size:80%;">"The Complete
Biogas Handbook" <code><a href="www.completebiogas.com">www.completebiogas.com</a></code><br>
<em>Vahid Biogas</em>, an alternative energy consultancy <code><a
href="www.vahidbiogas.com">www.vahidbiogas.com</a><br>
<br>
</code></div>
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<div style="padding-left:2em;">"Make no search for water.
But find thirst,<br>
And water from the very ground will burst."
<div style="padding-left:2em;font-size:80%;">(Rumi, a
Persian mystic poet, quoted in <em>Delight of Hearts</em>,
p. 77) <br>
<br>
<a class="moz-txt-link-freetext" href="http://bahai.us/">http://bahai.us/</a></div>
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