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Published byNicolette Stansell Modified about 1 year ago

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Fluid Mechanics 07

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Hydraulic and Energy Grade Lines

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Pump Add head to the System

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Turbine

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Nozzle Nozzle increase the velocity and if discharge to atmospheric the term of pressure head will be zero

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Change in pipe diameter

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Negative Pressure

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Example A pump draws water (50°F) from a reservoir, where the water-surface elevation is 520 ft, and forces the water through a pipe 5000 ft long and 1 ft in diameter. This pipe then discharges the water into a reservoir with water-surface elevation of 620 ft. The flow rate is 7.85 cfs, and the head loss in the pipe is given by

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Determine the head supplied by the pump, hp, and the power supplied to the flow, and draw the HGL and EGL for the system. Assume that the pipe is horizontal and is 510 ft in elevation.

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Solution

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