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← ScienceWhich outcome will occur when a closed-cycle gas turbine runs above its compressor surge limit?
A)Blade stall and flow reversal✓
B)Increased turbine power output briefly
C)Improved cycle thermal efficiency
D)Decreased fuel consumption marginally
💡 Explanation
Blade stall and flow reversal results because the angle of attack exceeds the critical value, initializing boundary layer separation: a mechanism of aerodynamic stall. The gas is not completely compressed, back flowing rather than proceeding forward; therefore, surge causes instability rather than improved performance.
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