5.90 A water turbine wheel rotates at the rate of 50 rpm in the di- rection...
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5.90 A water turbine wheel rotates at the rate of 50 rpm in the di- rection shown in Fig. P5.90. The inner radius, r2, of the blade row is 0.6 m, and the outer radius, r₁, is 1.2 m. The absolute velocity vector at the turbine rotor entrance makes an angle of 20° with the tangential direction. The inlet blade angle is 60° relative to the tan- gential direction. The blade outlet angle is 120°. The flowrate is 0.6 m³/s. For the flow tangent to the rotor blade surface at inlet and outlet, determine an appropriate constant blade height, b, and the corresponding power available at the rotor shaft. b -20° W₁ 60° 50 rpm 120° W₂ Section (1) Figure P5.90 r2 = 0.6 m V₁ 1.2 m Section (2) Q = 0.6 m³/s 5.90 A water turbine wheel rotates at the rate of 50 rpm in the di- rection shown in Fig. P5.90. The inner radius, r2, of the blade row is 0.6 m, and the outer radius, r₁, is 1.2 m. The absolute velocity vector at the turbine rotor entrance makes an angle of 20° with the tangential direction. The inlet blade angle is 60° relative to the tan- gential direction. The blade outlet angle is 120°. The flowrate is 0.6 m³/s. For the flow tangent to the rotor blade surface at inlet and outlet, determine an appropriate constant blade height, b, and the corresponding power available at the rotor shaft. b -20° W₁ 60° 50 rpm 120° W₂ Section (1) Figure P5.90 r2 = 0.6 m V₁ 1.2 m Section (2) Q = 0.6 m³/s
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Related Book For
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
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