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Which efficiency decrease develops when regenerative cycles use irreversible compression?

A)Reduced heat exchanger temperature gradients
B)Increased exhaust turbine work output
C)Elevated cycle exergy destruction
D)Diminished steam generator firing rate

💡 Explanation

Elevated cycle exergy destruction occurs because irreversible compression raises the entropy within the cycle; thereby, energy is dissipated, and some power cannot be converted work rather than remaining available. Therefore, overall efficiency decreases.

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