Water Horsepower
Water Horsepower formulas
| \(\large{ WHP = \frac{ Q \; h_t }{3960} }\) | |
| \(\large{ WHP = \eta_p \; BHP }\) |
Where:
| Units | English | Metric |
| \(\large{ WHP }\) = water horsepower | \(\large{\frac{lbf-ft}{sec}}\) | \(\large{\frac{Btu}{s}}\) |
| \(\large{ Q }\) = flow rate discharge | \(\large{\frac{ft^3}{sec}}\) | \(\large{\frac{m^3}{s}}\) |
| \(\large{ \eta_p }\) (Greek symbol eta) = pump efficiency | \(\large{dimensionless}\) | |
| \(\large{ h_t }\) = total head | \(\large{ft}\) | \(\large{m}\) |
Solve For:
| \(\large{ BPH = \frac{ 100 \; Q \; h_t }{ 3960 \; \eta_p } }\) | |
| \(\large{ Q = \frac{ 3960 \; WHP }{ H } }\) | |
| \(\large{ \eta_p = \frac{ WHP }{ BHP } }\) | |
| \(\large{ h_t = \frac{ 3960 \; WHP }{ Q } }\) |
