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← ScienceWhich consequence results when a refrigeration system's throttling valve malfunctions and induces rapid evaporant refrigerant flashing?
A)Reduced refrigeration system cooling capacity✓
B)Increased compressor motor energy efficiency
C)Higher refrigerant subcooling upon condensation
D)Stable refrigeration process energy equilibrium
💡 Explanation
Reduced cooling occurs because rapid refrigerant flashing reduces liquid reaching the evaporator, limiting available enthalpy of vaporization, rather than alternative effects like increased efficiency. This is due to isenthalpic expansion, therefore heat load rises only in the valve's local area and it fails to transfer more broadly since it occurs too early.
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