To determine The hydraulic efficiency of the turbine. Explanation Write the expression for the input work done. W i n = U i n V θ (I) Here, the absolute velocity tangential component is V θ , the inlet blade velocity is U i n . Write the expression foe the power loss. W L = p i n − p o u t ρ − W i n (II) Here, the pressure at the inlet is p i n , the pressure at the outlet is p o u t and the density of the fluid is ρ . Write the expression for the hydraulic efficiency of the turbine. η = W i n W i n + W L (III) Conclusion: Substitute 50 ft / s for U i n and 15 ft / s for V θ in Equation (I). W i n = ( 50 ft / s ) ( 15 ft / s ) = 750 ft 2 / s 2 ( 1 lb ⋅ ft / s 1 ft 2 / s 2 ) = 750 lb ⋅ ft / s Substitute 750 lb ⋅ ft / s for W i n , 12 psi for ( p i n − p o u t ) and 1

8th Edition

ISBN: 9781119571490

Author: GERHART

Publisher: WILEY

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

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Chapter 5.3, Problem 135P

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The hydraulic efficiency of the turbine.

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Chapter 5.3, Problem 134P

Chapter 5.3, Problem 136P

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Chapter 5 Solutions

FUNDAMENTALS OF FLUID MECHANICS

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