// multi-utility computation suite · offline · instant · precise
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│ [c] calcalyst_ │
│ computation suite │
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eng.pump-power Calculator
Calculates pump hydraulic power, brake power, and motor input power from flow rate, head, and efficiency values. Motor nameplate power must exceed brake power by a service factor — typically 1.15–1.25× to handle transient overloads.
Inputs
Q
Volume of fluid per unit time. Used to size pipes, pumps, and ducts.
H
Reference formula or conversion factor shown for context.
Rho
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Eff
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
hydraulic power (W)
Reference formula or conversion factor shown for context.
shaft power (W)
Reference formula or conversion factor shown for context.