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Which mechanism limits peak compressor efficiency involving R-134a?

A)Internal turbulent fluid kinetic energy
B)Refrigerant two-phase flow throttling
C)Compressor bearing friction rate increase
D)Condenser tube wall heat resistance

💡 Explanation

Two-phase flow throttling degrades performance, because vapor bubbles create energy losses through the Joule-Thomson effect resulting in volumetric inefficiencies. Therefore two-phase flow limits compressor effectiveness rather than turbulent kinetic energy, which would impact efficiency differently.

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