Pump Efficiency Calculator

Calculate pump efficiency η = (ρ·g·Q·H)/(P_shaft) × 100%. Wire-to-water efficiency includes motor efficiency. BEP (Best Efficiency Point) from pump curve. Power consumption at off-design conditions.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
Advertisement

How It Works

Calculate pump efficiency η = (ρ·g·Q·H)/(P_shaft) × 100%. Wire-to-water efficiency includes motor efficiency. BEP (Best Efficiency Point) from pump curve. Power consumption at off-design conditions

Each component has a specific meaning:

  • Pump curve — The pump curve recorded for the patient or scenario being assessed.

Note: Interpret the pump efficiency result against the clinical thresholds and context described above.

How to Use

Enter the pump curve for the patient or scenario you are assessing. Calculate pump efficiency η = (ρ·g·Q·H)/(P_shaft) × 100%. Wire-to-water efficiency includes motor efficiency. BEP (Best Efficiency Point) from pump curve. Power consumption at off-design conditions. Use the pump efficiency result to inform your clinical assessment.

Related Calculators

Pump Head

Engineering

Hydraulic Power

Engineering

NPSH

Engineering

Frequently Asked Questions