pumps - Pumps Goals Describe how centrifugal and...

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Pumps
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Goals Describe how centrifugal and positive-displacement pumps operate and common applications. Calculate system head requirements. Determine head, pump efficiency, and pump. horsepower from a typical centrifugal pump curve. Define net positive suction head (NPSH) and understand how it relates to cavitation. Compute NPSH required by a pump. Determine an appropriate pump (impeller diameter, efficiency, etc.) for a given required head. Describe how to modify system to operate on the appropriate pump curve.
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Background Fluid Moving Equipment Fluids are moved through flow systems using pumps, fans, blowers, and compressors. Such devices increase the mechanical energy of the fluid. The additional energy can be used to increase Velocity (flow rate) Pressure Elevation
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Pump, fan, blower, and compressor are terms that do not have precise meaning. Generally pumps move liquids while fans, blowers and compressors add energy to gasses. Pumps and fans do not appreciably affect the
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This note was uploaded on 01/07/2011 for the course ENGLISH 1303 taught by Professor May during the Spring '10 term at HKU.

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pumps - Pumps Goals Describe how centrifugal and...

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