The Ideal Vapor-Compression Refrigeration Cycle
Most compressors do not work well on two-phase mixtures.
Solution:

Completely vaporize the refrigerant in the evaporator.
Turbines are not designed to handle vapor liquid mixtures.
Solution:

Replace the turbine with an expansion valve.

Ideal Vapor-Compression Refrigeration Cycle
Evaporator:
Compressor:
Condenser:
Expansion
Valve:
Valve:
Heat absorbed at constant pressure. Effluent is a saturated vapor.
Isentropic compression.
Heat rejected at constant pressure.
Isenthalpic
expansion.
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