5
HEATING OPERATION
Evaporator
(EVA)
Superheated
refrigerant
vapor
condenses on the outer surface of the
Evaporator tubing bundle. Heat equal to
the latent heat of the refrigerant is
transferred into the hot water circuit. The
liquid refrigerant that condensed on the
outer surface simply drips off into the
Absorber sump, diluting the solution back
to the same concentration level as when
it started the cycle.
Absorber
(ABS)
Liquid refrigerant that condensed on the
outer surface of the Evaporator tubing
bundle drips into the Absorber sump.
Concentrated solution from the HGE and
dilute solution cycled through the LGE
also ends up in the Absorber sump. The
joining of all the liquids results in diluting
the solution back to the state at which it
began the cycle. This diluted solution is
then pumped to the Generators to begin
the cycle anew.
Fig. 2
– DOUBLE-EFFECT ABSORPTION CYCLE
(HEATING)
