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← ScienceWhich consequence results when turbine blade temperature exceeds design limits implementing a Carnot cycle?
A)Isentropic expansion irreversibly reverses
B)Thermal efficiency decreases significantly✓
C)Adiabatic compression phase transition
D)Exergy output rises instantaneously
💡 Explanation
Reduced blade-to-gas temperature difference in a Carnot cycle diminishes useful work, because irreversibility increases the entropy generation, therefore efficiency plummets rather than optimal conversion, since less heat converts to work.
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