The velocity of steam leaving the nozzles of an impulse turbine is 900 m/s and the nozzle angle is 20°. The blade velocity is 300 m/s and the blade velocity cocfficient is 0.7. Calculate for a mass flow of 1 kg/s, and symmetrical blading: (i) the blade inlet angle; (ii) the driving force on the wheel;

The velocity of steam leaving the nozzles of an impulse turbine is 900 m/s and the nozzle angle is 20°. The blade velocity is 300 m/s and the blade velocity cocfficient is 0.7. Calculate for a mass flow of 1 kg/s, and symmetrical blading: (i) the blade inlet angle; (ii) the driving force on the wheel;

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Example 11.1
The velocity of steam leaving the nozzles of an impulse turbine is 900 m/s
and the nozzle angle is 20°. The blade velocity is 300 m/s and the blade
velocity cocfficient is 0.7. Calculate for a mass flow of 1 kg/s, and symmetrical
blading:
(i) the blade inlet angle;
(ii) the driving force on the wheel;
355
Urheberrechtlich geschütztes Material
Rotodynamic Machinery
(iii) the axial thrust;
(iv) the diagram power;
(v) the diagram efficiency.

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