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A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: Ag = 258 cm? , Aca = 180 cm2 ; Q = 0.1.n, = 0.82, = 25 cm, r = 12.5 cm, B, = 140°, Bz = 155°, a, = 90°, o, = 0.75, and nwyd = 92 %. Assume shockless entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in k) The Brake Power in kW (c) (d) the coefficient of velocity c at entrance to blade (e) The net Head, in m. (1) Draw the velocity diagram and label.

A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: Ag = 258 cm? , Aca = 180 cm2 ; Q = 0.1.n, = 0.82, = 25 cm, r = 12.5 cm, B, = 140°, Bz = 155°, a, = 90°, o, = 0.75, and nwyd = 92 %. Assume shockless entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in k) The Brake Power in kW (c) (d) the coefficient of velocity c at entrance to blade (e) The net Head, in m. (1) Draw the velocity diagram and label.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Fluid midterm project

FLUID MACHINERY PROBLEM: A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: Ag = 258 cm² , Aç2 = 180 cm² ; Q = 0.1 n, = 0.82 ,r, = 25 cm,r2 = 12.5 cm, B, = 140°, Bz = 155°, az = 90°, ø, = 0.75, and nwyd = 92 % . Assume shockless entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in kJ The Brake Power in kW (c) (d) the coefficient of velocity c1 at entrance to blade (e) The net Head, in m. (f) Draw the velocity diagram and label.
Transcribed Image Text:FLUID MACHINERY PROBLEM: A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: Ag = 258 cm² , Aç2 = 180 cm² ; Q = 0.1 n, = 0.82 ,r, = 25 cm,r2 = 12.5 cm, B, = 140°, Bz = 155°, az = 90°, ø, = 0.75, and nwyd = 92 % . Assume shockless entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in kJ The Brake Power in kW (c) (d) the coefficient of velocity c1 at entrance to blade (e) The net Head, in m. (f) Draw the velocity diagram and label.
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