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The interesting thing about absorption is that the refrigerant (typically water) is absorbed by the lithium bromide. The heat is the energy that makes the system run instead of electricity.
RV refrigerators are similar but a bit of a different process.
The evaporator in an absorber is the same, heat boils the refrigerant in the evaporator and the vapor travels to the absorber section. The absorbent absorbs (duh!) the water and is moved (pumped) to a concentrator where the refrigerant (H20) is split out of the absorbent by heating the dilute solution. The strong solution is returned to the absorber section, the refrigerant vapor is cooled in a condenser then the liquid refrigerant is re introduced to the evaporator.
This seems to be a different slant on things, but home absorption units (typically gas fired to provide the heat) do exist.
It would be neat (for me anyway!) to see a more detailed description of the refrigerant cycle.
__________________
Bill K.
"I started out with nothin and I still got most of it left...."
83 911 SC Guards Red (now gone)
And I sold a bunch of parts I hadn't installed yet.
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