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16 TRG-TRC011-EN
notes
period one
Absorption Refrigeration Cycle
A diagram of a typical absorption refrigeration cycle can be superimposed on
this equilibrium chart to demonstrate the function of each component in the
system.
Realize that the equilibrium chart can only be used for those portions of the
cycle where the lithium bromide solution is present. It cannot be used for the
condenser or evaporator sections. The properties of the refrigerant as it passes
through the condenser, expansion device, and evaporator can be analyzed
using a pressure–enthalpy chart for the refrigerant (water, in this case).
condenser
condenser
evaporator
evaporator
absorber
absorber
generator
generator
chilled
chilled
water
water
cooling
cooling
water
water
steam or
steam or
hot water
hot water
heat
heat
exchanger
exchanger
expansion
expansion
device
device
(
(
'
'
%
%
)
)
$
$
&
Figure 19