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← ScienceWhich efficiency decrease results when turbine preheating diminishes?
A)Reduced overall thermal cycle efficiency✓
B)Increased compressor stage power demand
C)Enhanced intercooler heat rejection rate
D)Minimal entropy increase during combustion
💡 Explanation
Diminished turbine preheating reduces cycle efficiency due to decreased average temperature during heat addition; therefore, thermal cycle energy is lessened because the available exergy is decreased, rather than more favorable alternative thermal efficiencies.
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