The gas powered refrigeration is based on an "absorption cycle" (a
thermodynamic term). In an absorption cycle, a secondary fluid, the
absorbent, is used to absorb the primary fluid, the refrigerant, after
the refrigerant has left the evaporator. The vaporized refrigerant is
converted back to liquid phase in the absorber. The solution of
absorbent and refrigerant is then pumped to the generator. In the
generator, heat is added, and the more volatile refrigerant is
separated from the absorbent through distillation (this is where heat
is used for "cooling"). The refrigerant continues to the condenser,
expansion valve, and evaporator, while the absorbent returns to the
absorber.
Absorption machines represent only a small percentage of
refrigeration systems in operation (not very efficient). An
absorption machine is an excellent way to utilize waste heat (in
industrial applications).
______________________________ Reply Separator _________________________________
Subject: Gas powered Refrigeration?
Author: Nick Jacobs <jacobs@flex.net> at smtp
Date: 4/23/97 11:08 PM
I understand how conventional compressor driven air conditioning and
refrigeration units operate. However I can only speculate as to the
theory behind gas powered systems.
Can someone advise on this therory which I presume is still used in the
many "triple-powered" (120vac, 12vdc, & propane) refrigerators as
applied in travel trailers.
How does a heat power source get "twisted" such that it will act to
remove the heat rom inside the fridg?
--
If you do a Good Deed, Get a Receipt ...Just in case Heaven is like the
I.R.S. :-)
Corndog
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