A Francis turbine has the dimensions of ri=1.42 m, r2=2.00 m.bi=2.20 m and b2=0.731m. Rotation speed he turbine is 180 rpm. Three angles of velocities at the inlet and outled of the blade are defined as az= 35° !al=25° The flow rate of turbine is 340 m/s and the total head of the turbine is 80 m. Neglecting losses, www a) Draw the velocity three anges at inlet and outlet of the blade. b) Calculate blade angles at inlet and outlet of the blade, Power, Net head of turbine. c) Losses in water channel (Penstock). te: Point (2) presents inlet and while point (1) presents outlet section of blade.

A Francis turbine has the dimensions of ri=1.42 m, r2=2.00 m.bi=2.20 m and b2=0.731m. Rotation speed he turbine is 180 rpm. Three angles of velocities at the inlet and outled of the blade are defined as az= 35° !al=25° The flow rate of turbine is 340 m/s and the total head of the turbine is 80 m. Neglecting losses, www a) Draw the velocity three anges at inlet and outlet of the blade. b) Calculate blade angles at inlet and outlet of the blade, Power, Net head of turbine. c) Losses in water channel (Penstock). te: Point (2) presents inlet and while point (1) presents outlet section of blade.

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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Q3.A Francis turbine has the dimensions of r=1.42 m, r,=2.00 m br=2.20 m and by=0.731m. Rotation speed
of the turbine is 180 rpm. Three angles of velocities at the inlet and outled of the blade are defined as oaz= 35°
and al=25° The flow rate of turbine is 340 m/s and the total head of the turbine is 80 m. Neglecting losses,
www
a) Draw the velocity three anges at inlet and outlet of the blade.
b) Calculate blade angles at inlet and outlet of the blade, Power. Net head of turbine.
c) Losses in water channel (Penstock).
Note: Point (2) presents inlet and while point (1) presents outlet section of blade.
Adjustable guide vane
Blade
n

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