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G'day All,<br>
<br>
Larger absorption chillers are available, but I don't have
performance figures. you can even get trigen, where you get
electricity, cold and heat from the one unit.<br>
<br>
Happy digesting,<br>
HOOROO<br>
<br>
<div class="moz-cite-prefix">On 9/10/2013 3:16 AM, David wrote:<br>
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<br>
Stephen,<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/8/2013 2:37 AM, Stephen
Etheridge wrote:<br>
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<p class="MsoNormal"><span
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not use a gas fridge?</span></p>
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<br>
One's mileage may vary, but gas refrigerators (here in the US,
such as the old Servels) have very poor efficiency (3%?), and
generally speaking, where enough biogas is available, it makes
better sense to make electricity, use the excess heat for the
digester, and use electric-powered cooling.<br>
<br>
I don't know if larger cooling systems would experience
significantly better efficiency: indeed, I don't know that I have
ever seen mention of a larger system, which may provide something
of an inferential answer. (By the way, Einstein held a patent on a
gas-powered refrigeration system.)<br>
<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 moz-do-not-send="true"
href="www.completebiogas.com">www.completebiogas.com</a></code><br>
<em>Vahid Biogas</em>, an alternative energy consultancy <code><a
moz-do-not-send="true" href="www.vahidbiogas.com">www.vahidbiogas.com</a><br>
<br>
</code></div>
<code>
<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 moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://bahai.us/">http://bahai.us/</a></div>
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<pre wrap="">_______________________________________________
Digestion mailing list
to Send a Message to the list, use the email address
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to UNSUBSCRIBE or Change your List Settings use the web page
<a class="moz-txt-link-freetext" href="http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org</a>
for more information about digestion, see
Beginner's Guide to Biogas
<a class="moz-txt-link-freetext" href="http://www.adelaide.edu.au/biogas/">http://www.adelaide.edu.au/biogas/</a>
and the Biogas Wiki <a class="moz-txt-link-freetext" href="http://biogas.wikispaces.com/">http://biogas.wikispaces.com/</a>
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