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← TechnologyWhich outcome occurs when refrigerant R-134a leaks into a refrigeration system using alkylbenzene lubricating oil?
A)Oil viscosity decreases excessively causing wear✓
B)Compressor motor windings short from acid formation
C)Condenser pressure increases due to non-condensables
D)Evaporator temperature rises due to reduced capacity
💡 Explanation
When R-134a leaks into alkylbenzene oil, refrigerant dilution occurs because R-134a is miscible, causing a significant reduction of the oil viscosity. Therefore excessive wear results due to compromised lubrication, rather than motor short, pressure increase or temperature rise which require different mechanisms like chemical reactions or fouling.
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