Q. In a De-laval steam turbine, steam Issues from a nozzle with a velocity of 1200 m/s. The nozzle а angle is 20° and blade velocity is 400 m/s. The inlet and outlet blade angles are equal. Mass of steam flowing through the turbine is 850 kg/hr. Blade velocity coefficient is 0.8. Determine: (i) Angles of blade (ii) Relative velocity of steam entering the blade. (iii) Tangential force on blades (iv) Power developed (v) Blade efficiency.

Q. In a De-laval steam turbine, steam Issues from a nozzle with a velocity of 1200 m/s. The nozzle а angle is 20° and blade velocity is 400 m/s. The inlet and outlet blade angles are equal. Mass of steam flowing through the turbine is 850 kg/hr. Blade velocity coefficient is 0.8. Determine: (i) Angles of blade (ii) Relative velocity of steam entering the blade. (iii) Tangential force on blades (iv) Power developed (v) Blade efficiency.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Question

Q. In a De-laval steam turbine, steam Issues from
a nozzle with a velocity of 1200 m/s. The nozzle
angle is 20° and blade velocity is 400 m/s. The
inlet and outlet blade angles are equal. Mass of
steam flowing through the turbine is 850 kg/hr.
Blade velocity coefficient is 0.8. Determine:
(i) Angles of blade
(ii) Relative velocity of steam entering the blade.
(iii) Tangential force on blades
(iv) Power developed
(v) Blade efficiency.

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