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← ScienceWhich outcome increases when an industrial heat exchanger experiences fouling?
A)Reduced overall heat transfer efficiency✓
B)Increased operational stability margin
C)Improved coolant-to-refrigerant phase transition
D)Decreased compressor electrical energy usage
💡 Explanation
Fouling introduces thermal resistance, reducing heat transfer efficiency because it blocks the designed heat exchange. Therefore, thermal energy flow drops due to increased thermal insulation, rather than improving heat transfer or stability under changed conditions.
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