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← ScienceWhich risk increases when a refrigeration compressor undergoes repeated on/off cycling at high frequency?
A)Reduced heat transfer efficiency slightly
B)Premature bearing wear due to lubrication intermittency✓
C)Increased refrigerant flow rate gradually.
D)Elevated superheat despite condenser saturation
💡 Explanation
Frequent starts cause lubrication pumps to lose pressure repeatedly limiting oil film, causing premature wear; this is the stiction mechanism. Bearing wear results therefore, rather than simple efficiency loss, because lubrication failures can have long term, mechanical consequences.
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