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← TechnologyIn a two-stage cascade refrigeration system, which outcome occurs when the intermediate refrigerant experiences excessive superheating?
A)Reduced overall cooling system efficiency✓
B)Increased compressor discharge temperatures
C)Elevated evaporator coil frosting
D)Decreased capillary tube subcooling
💡 Explanation
Excessive superheating leads to lower volumetric efficiency via the vapor compression cycle, because increased vapor density impairs heat exchanger operations, therefore reducing the overall system's cooling capacity rather than causing localized issues like frosting.
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