In De Laval steam turbine___________?
Correct answer: A. the pressure in the turbine rotor is approximately same as in con¬denser
- A. the pressure in the turbine rotor is approximately same as in con¬denser
- B. the pressure in the turbine rotor is higher than pressure in the con¬denser
- C. the pressure in the turbine rotor gradually decreases from inlet to exit from condenser
- D. none from the above
Explanation
A De Laval turbine is an impulse turbine, so nearly the entire pressure drop occurs in the nozzle and the rotor pressure remains almost constant. This rotor pressure is approximately equal to the condenser or exhaust pressure.
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