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 Title      : TURBO MACHINERY Subject      : Turbo Machines copyright © 2018   : praveen math Author      : praveen math Publisher      : Reva University Chapters/Pages      : 7/78 Total Price      : Rs.      : 0 To Purchase, select the individual chapter(s) or click "Select all" for the complete book. Please scroll down to view chapter(s).
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Pumps and turbines (sometimes called fluid machines) occur in a wide variety of configurations. In general, pumps add energy to the fluid—they do work on the fluid; turbines extract energy from the fluid—the fluid does work on them. The term “pump” will be used to generically refer to all pumping machines, including pumps, fans, blowers, and compressors.
 Pages: 10
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An understanding of the work transfer in turbomachines can be obtained by considering the basic operation of a household fan (pump) and a windmill (turbine). Although the actual flows in such devices are very complex (i.e., three-dimensional and unsteady), the essential phenomena can be illustrated by use of simplified flow considerations and velocity triangles.
 Pages: 16
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It is a term used to describe the speed of sound waves passing through an elastic medium. The speed varies with the medium employed (for example, sound waves move faster through water than through air), as well as with the properties of the medium, especially temperature. The term is commonly used to refer specifically to the speed of sound in air.
 Pages: 12
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One of the most common radial-flow turbo-machines is the centrifugal pump. This type of pump has two main components: an impeller attached to the rotating shaft, and a stationary casing, housing, or voluet enclosing an impeller.
 Pages: 19
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centrifugal pumps are radial_flow machines that operate most efficiently for applications requiring high heads at relatively low flow rates.
 Pages: 7
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Compressible flow turbines may be impulse or reaction turbines, and mixed, radial, axial-flow turbines.
 Pages: 4
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For hydraulic impulse turbines, the pressure drop across the rotor is zero; all of the pressure drop across the turbine stage occurs in the nozzle row.
 Pages: 10
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