Pump Equations Formulas Calculator
Fluid Mechanics and Hydraulics
Problem:
Solve for Pump Efficiency
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Solution:
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 | Solve for water horsepower |
 | Solve for flow rate or discharge |
 | Solve for total head |
 | Solve for pump efficiency |
 | Solve for brake horsepower |
 | Solve for NPSH - net positive suction head |
 | Solve for fluid or liquid velocity |
 | Solve for pressure at impeller inlet |
 | Solve for fluid or liquid vapor pressure |
 | Solve for specific weight of fluid or liquid |
 | Solve for the acceleration of gravity |
| WHP | = | water horsepower |
| Q | = | flow rate or discharge |
| H | = | total head |
| n | = | pump efficiency |
| BHP | = | brake horsepower |
| NPSH | = | net positive suction head |
| V | = | velocity of fluid or liquid |
| p | = | impeller inlet pressure |
| pv | = | vapor pressure of fluid or liquid |
| SW | = | specific weight of fluid or liquid |
| g | = | acceleration of gravity |
References - Books
P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.
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