SYSTEM.INITIALIZE: BLUEPRINT_UNFOLD
DWG TITLEPORTFOLIO BLUEPRINT
DRAWN BYDINESH KUMAR
SCALE1:1
REVISIONA.02
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Thermal & Fluid Sciences

Pump Power Calculator

Analyze pump power requirements. Determine the hydraulic output (useful work done on fluid) and shaft input (actual motor power required) across efficiency losses.

Gravity (g)
9.81 m/s²
Standard Earth gravity
Fluid Density
1000 kg/m³
Dynamic reference
Output
CSV
Export ready

Parameters

System fluid & head presets
Animated flow rate sweep

Pump Power Formulations

Hydraulic Power Output (Pw)
Pw = ρ * g * Q * H
Shaft Power Input (Ps)
Ps = Pw / η
Volumetric Flow Rate in m³/s
Q_m3s = Q_m3h / 3600
Dissipated Power Losses
P_loss = Ps - Pw

At flow rate 100 m³/h and head 30 m, the useful hydraulic fluid output is 8.18 kW.

Due to an efficiency of 75%, the motor must deliver 10.90 kW to the pump shaft.

The remaining 2.72 kW of power is wasted as heat, bearing friction, and viscous shear losses.

Rig Layout & Power Distribution

ELECTRIC MOTORMotor Power In: 10.9 kWFluid Power Out: 8.2 kWLoss: 2.7 kW
Shaft Power Input (Brake HP)
10.90kW
Hydraulic Power Output
8.18kW
Power Dissipated (Losses)
2.72kW
Mass Flow Rate
27.8kg/s

Power Curves vs. Flow Rate (at current Head & Density)

Power Sweep Node Data

Flow Rate (m³/h)Hydraulic Power (kW)Shaft Power (kW)Power Dissipated (kW)
100.821.090.27
302.453.270.82
504.095.451.36
705.727.631.91
907.369.812.45
1108.9911.993.00
13010.6314.173.54
15012.2616.354.09
17013.9018.534.63
19015.5320.715.18
21017.1722.895.72
23018.8025.076.27
25020.4427.256.81
27022.0729.437.36
29023.7131.617.90
31025.3433.798.45
33026.9835.978.99
35028.6138.159.54
37030.2540.3310.08
39031.8842.5110.63
41033.5244.6911.17
43035.1546.8711.72
45036.7949.0512.26
47038.4251.2312.81
49040.0653.4113.35