Refrigeration Cycle

Example:

A Refrigeration cycle utilizes propane as the working fluid is used in

the liquefaction of the NG. Propane is fed to an evaporator (Heater) the pressure drop-5 kPa, where it absorbed 1.50e+6 kJ/hr from the NG and leaves at the dew point (Vapor Fraction=1.0) at T= -15°C. The output of the evaporator is then compressed adiabatically with efficiency of 75%, and then it's condensed to reject heat. Inside the Condenser there is a pressure drop of 30 kPa, and leaves as saturated liquid at 45°C. Finally, the propane passes through a valve to return the pressure of the Evaporator.

Fluid Pkg: Peng Robinson