calculating npsh of pump

Essay specific features

 

Issue:

Miscellaneous

 

Written by:

James D

 

Date added:

July 12, 2011

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 401

 

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3140 times

 

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Essay content:

if any ? Line losses Note : a) The height of liquid in the vessel should be taken to be at the vessel bottom tangent line. b) Height of the pump centreline is calculated as follows : HPC = HPB + F where HPC = height of pump centreline above finished floor level HPB = height of pump centreline above pump baseplate F = height of pump foundation above finished floor level HPB is estimated from the following table based on typical vendor information : Pump Flow Rate Height of Pump Centreline (m3/hr) above Base Plate HPB (mm) upto 200 450 200 - 300 650 300 ? 400 750 The height of foundation F is typically taken at 300 mm...
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start-up, original fill of lines, winter operation, all control valve pressure drops, summer operation, piping conditions, exit and entrance losses. Provide NPSHA at 1 meter over worse conceived NPSHR curve by the manufacturer. In general, NPSHR of pumps should be considered as 3.0 meters, though the exact requirement, will be specified by the pump manufacturer...
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