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← ScienceWhich outcome occurs when a heat pump using a refrigerant undergoes repeated rapid thermal cycling?
A)Decreased pump efficiency dominates increase
B)Cavitation risk within the compressor✓
C)Refrigerant viscosity rises unexpectedly
D)Higher heat transfer surface aging
💡 Explanation
Repeated rapid changes cause localized boiling and collapse, leading to cavitation; therefore, cavitation risk increases because of bubble formation, rather than thermal fatigue which happens on longer timescales or viscosity which is less sensitive to thermal cycling.
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