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← ScienceWhich outcome reduces efficiency as heat enters Brayton cycle?
A)Decreased maximum temperature achievable
B)Decreased turbine blade creep fatigue
C)Increased compressor back work ratio✓
D)Increased turbine inlet enthalpy
💡 Explanation
Increasing inlet air temperature increases specific volume, which increases the compressor work during isentropic compression because more energy needed compresses larger volume; therefore the compressor requires more work relative turbine and overall efficiency decreases, rather than increased turbine enthalpy.
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