In an impulse turbine, the fixed blades function to

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Multiple Choice

In an impulse turbine, the fixed blades function to

In an impulse turbine, fixed blades act as stationary nozzles that both accelerate and guide the steam. They convert part of the steam’s pressure energy into kinetic energy and, crucially, direct the high-velocity jet onto the rotor blades at the correct angle. This precise steering ensures the moving blades can extract maximum impulse from the jet. The fixed blades don’t increase pressure, generate electricity, or raise temperature—the energy transfer and pressure drop occur mainly as the steam passes through these stationary nozzles and is directed toward the rotor.

In an impulse turbine, fixed blades act as stationary nozzles that both accelerate and guide the steam. They convert part of the steam’s pressure energy into kinetic energy and, crucially, direct the high-velocity jet onto the rotor blades at the correct angle. This precise steering ensures the moving blades can extract maximum impulse from the jet. The fixed blades don’t increase pressure, generate electricity, or raise temperature—the energy transfer and pressure drop occur mainly as the steam passes through these stationary nozzles and is directed toward the rotor.

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