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← ScienceWhich outcome increases when a closed refrigeration cycle's isentropic expansion valve experiences restricted vapor flow?
A)Compressor motor winding overheating✓
B)Evaporator coil ice formation
C)System coefficient of performance upswing
D)Refrigerant subcooling within condenser
💡 Explanation
Compressor motor winding overheating increases because less vapor undergoes isentropic expansion; therefore the reduction in temperature reduces and less suction cooling occurs, rather than increased cooling because less two-phase pressure drop across heat input.
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