8th Edition

ISBN: 9780073398174

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

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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 8.8, Problem 14P

One method of meeting the extra electric power demand at peak periods is to pump some water from a large body of water (such as a lake) to a reservoir at a higher elevation at times of low demand and to generate electricity at times of high demand by letting this water run down and rotate a turbine (i.e., convert the electric energy to potential energy and then back to electric energy). For an energy storage capacity of 5 × 10⁶ kWh, determine the minimum amount of water that needs to be stored at an average elevation (relative to the ground level) of 75 m.

FIGURE P8–15

Chapter 8.8, Problem 14P, One method of meeting the extra electric power demand at peak periods is to pump some water from a

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Chapter 8.8, Problem 13P

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Chapter 8 Solutions

Thermodynamics: An Engineering Approach

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Solution Summary: The author explains the minimum amount of water that needs to be stored at an average elevation.

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