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8 TRG-TRC011-EN
notes
period one
Absorption Refrigeration Cycle
These two fluids, the refrigerant and the absorbent, are mixed inside the chiller
in various concentrations. The term dilute solution refers to a mixture that
has a relatively high refrigerant content and low absorbent content. A
concentrated solution has a relatively low refrigerant content and high
absorbent content. An intermediate solution is a mixture of dilute and
concentrated solutions.
Components of the Absorption Cycle
The four basic components of the absorption refrigeration cycle are the
generator and condenser on the high-pressure side, and the evaporator and
absorber on the low-pressure side. The pressure on the high-pressure side of
the system is approximately ten times greater than that on the low-pressure
side.
dilute
dilute
solution
solution
concentrated
concentrated
solution
solution
intermediate
intermediate
solution
solution
Figure 9
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
Figure 10