Pump Horsepower
Pump horsepower, abbreviated as \(PHP\), is a measure of power or the rate of doing work.
Pump Horsepower formulas |
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\(\large{ PHP = \frac{ Q \;\Delta P}{1715 \;\eta_p } }\) \(\large{ PHP = \frac{ 0.0002525}{ \eta_p } \; Q \; H }\) \(\large{ PHP = \frac{ Q \; H \; SG }{ 3960 \;\eta_p } }\) |
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| Symbol | English | Metric |
| \(\large{ PHP }\) = pump horsepower | \(\large{\frac{lbf-ft}{sec}}\) | \(\large{\frac{J}{s}}\) |
| \(\large{ Q }\) = flow rate | \(\large{ \frac{lbm}{sec} }\) | \(\large{ \frac{kg}{s} }\) |
| \(\large{ H }\) = head | \(\large{ ft }\) | \(\large{ m }\) |
| \(\large{ \Delta P }\) = pressure added (discharge minus suction), psig | \(\large{ \frac{lbf}{in^2} }\) | \(\large{ Pa }\) |
| \(\large{ \eta_p }\) (Greek symbols eta) = pump efficiency | \(\large{ dimensionless }\) | |
| \(\large{ SG }\) = specific gravity | \(\large{ dimensionless }\) | |
