Pump Hydraulic Power
P_hyd = ρ·g·Q·H - useful power transferred to the fluid. Brake power = P_hyd / η_pump.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Fluid density | kg/m³ | |
| Volumetric flow | m³/s | |
| Total dynamic head | m | |
| Pump efficiency |
Source: ISO 9906 - Rotodynamic pumps acceptance tests
In short
P_hyd = \u03c1\u00b7g\u00b7Q\u00b7H - useful power transferred to the fluid.