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← ScienceWhich outcome arises as a closed Brayton cycle air compressor approaches its cooling limit during continuous operation?
A)Isentropic efficiency decreases substantially overall
B)Turbine blade erosion significantly accelerates
C)Combustor pressure oscillations induce instability
D)Compressor surge potential escalates quickly✓
💡 Explanation
Reduced cooling lessens air density, increasing required compression work, leading to surge; this is because the compressor mass flow decreases relative to inlet volume and decreases its ability to maintain pressure difference, therefore surge grows, rather than turbine erosion which relates to temperature.
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