Which outcome occurs in a refrigeration cycle when expansion valve temperature exceeds design threshold?

A)Increased refrigerant superheat at compressor inlet✓

B)Decreased condenser subcooling approaches zero

C)Excessive liquid floodback to compressor occurs

D)Higher compression ratio lowers efficiency index

💡 Explanation

Excessive expansion valve warming allows increased refrigerant flash-off; *isenthalpic expansion* causes higher vapor fraction downstream because liquid refrigerant is not efficiently cooled, therefore superheat increases rather than liquid carryover, with reduced subcooling.

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Which outcome occurs in a refrigeration cycle when expansion valve temperature exceeds design threshold?

💡 Explanation

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