Pump Hydraulic Power
P_hyd = ρ·g·Q·H - useful power transferred to the fluid. Brake power = P_hyd / η_pump.
Hydraulic power
69.83kW
Brake (shaft) power
87.29kW
Formula, assumptions, and limits
Efficiency for shipboard pumps: centrifugal 0.65–0.85 at BEP; positive displacement 0.80–0.92; submersible cargo (FRAMO) 0.55–0.70 because of the hydraulic drive.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Fluid density | kg/m³ | fluid property | |
| Volumetric flow | m³/s | pump curve | |
| Total dynamic head | m | system curve | |
| Pump efficiency | - | manufacturer curve |