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← ScienceWhich mechanism causes decreased efficiency when steam turbine operation crosses the saturation dome during power generation?
A)Blade erosion from liquid droplet formation✓
B)Superheated vapor reducing nozzle efficiency
C)Fouling increases thermal resistance
D)Condenser backpressure inhibits turbine flow
💡 Explanation
When steam turbine operation crosses the saturation dome, phase change occurs as superheated steam cools creating liquid droplets which cause blade erosion through high-speed impact. Therefore blade erosion results, rather than reduced nozzle efficiency, fouling, or backpressure which arise from distinct thermodynamic conditions.
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