The following data refers to a Curtis steam turbine having two rows of moving bladesand a fixed row between them, steam leaving the nozzle at 900 m/s, with an angle of 20°,blade speed is 200 m/s, blade angles of first moving row are equiangular, blade outletangle of the fixed blade is 25°. Blade outlet angle of the second moving row is 30°. Frictionfactor for all blades is 0.9.Using a suitable scale, draw the velocity diagrams and calculate:(i) Developed power, (ii) axial thrust and (iii) diagram efficiency for steam flow rate of5000 kg/hr.

INTRODUCTION : Steam turbines are the prime movers in which the heat energy of the steam is…

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D1/ The folle and a fixed r blade speed angle of the fa factor for all Using a suitat (i) Developed 5000 kg/hr.

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

The following data refers to a Curtis steam turbine having two rows of moving blades
and a fixed row between them, steam leaving the nozzle at 900 m/s, with an angle of 20°,
blade speed is 200 m/s, blade angles of first moving row are equiangular, blade outlet
angle of the fixed blade is 25°. Blade outlet angle of the second moving row is 30°. Friction
factor for all blades is 0.9.
Using a suitable scale, draw the velocity diagrams and calculate:
(i) Developed power, (ii) axial thrust and (iii) diagram efficiency for steam flow rate of
5000 kg/hr.

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