Problem (5.1) An impulse turbine is supplied with steam at a pressure of1.6 MPa and temperature of 250°C. The back pressure is 0.012 MPa.Nozzle efficiency is 0.9. Blade velocity coefficient K=0.8, mechanicalefficiency=0.9, nozzle angle =20°. Symmetrical blades with angle 30°.Find the revolution per minute if the mean diameter of wheel is 75 cm,the blade efficiency, axial thrust per kg steam, exit loss and the stageefficiency.

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Problem (5.1) An impulse turbine is supplied with steam at a pressure of 1.6 MPa and temperature of 250°C. The back pressure is 0.012 MPa. Nozzle efficiency is 0.9. Blade velocity coefficient K=0.8, mechanical efficiency=D0.9, nozzle angle 20°. Symmetrical blades with angle =30°. Find the revolution per minute if the mean diameter of wheel is 75 cm, the blade efficiency, axial thrust per kg steam, exit loss and the stage efficiency.

Problem (5.1) An impulse turbine is supplied with steam at a pressure of 1.6 MPa and temperature of 250°C. The back pressure is 0.012 MPa. Nozzle efficiency is 0.9. Blade velocity coefficient K=0.8, mechanical efficiency=D0.9, nozzle angle 20°. Symmetrical blades with angle =30°. Find the revolution per minute if the mean diameter of wheel is 75 cm, the blade efficiency, axial thrust per kg steam, exit loss and the stage efficiency.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

Problem (5.1) An impulse turbine is supplied with steam at a pressure of
1.6 MPa and temperature of 250°C. The back pressure is 0.012 MPa.
Nozzle efficiency is 0.9. Blade velocity coefficient K=0.8, mechanical
efficiency=0.9, nozzle angle =20°. Symmetrical blades with angle 30°.
Find the revolution per minute if the mean diameter of wheel is 75 cm,
the blade efficiency, axial thrust per kg steam, exit loss and the stage
efficiency.

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