In a stage of an impulse steam turbine the mean diameter of the blade ring is 800 mm and the speed of rotation is 3000 rpm. The direction of final absolute velocity of steam is axial, the inlet and exit angles of the blades are, 30°. Assuming a blade friction factor of 0.85 and a steam flow rate of 1 kg/s, determine. (a)The nozzle angle. (b) The absolute velocity of steam leaving the nozzle. (c)The enthalpy drop in the stage. (d) The tangential thrust. (e) The axial thrust. (f) The blading work. (g) The blading efficiency.

In a stage of an impulse steam turbine the mean diameter of the blade ring is 800 mm and the speed of rotation is 3000 rpm. The direction of final absolute velocity of steam is axial, the inlet and exit angles of the blades are, 30°. Assuming a blade friction factor of 0.85 and a steam flow rate of 1 kg/s, determine. (a)The nozzle angle. (b) The absolute velocity of steam leaving the nozzle. (c)The enthalpy drop in the stage. (d) The tangential thrust. (e) The axial thrust. (f) The blading work. (g) The blading efficiency.

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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In a stage of an impulse steam turbine the mean diameter of the blade ring
is 800 mm and the speed of rotation is 3000 rpm. The direction of final
absolute velocity of steam is axial, the inlet and exit angles of the blades are,
30°. Assuming a blade friction factor of 0.85 and a steam flow rate of 1 kg/s,
determine.
(a)The nozzle angle.
(b) The absolute velocity of steam leaving the nozzle.
(c)The enthalpy drop in the stage.
(d) The tangential thrust.
(e) The axial thrust.
(f) The blading work.
(g) The blading efficiency.

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