Ingenieurwerkzeuge

Brunnenpumpen-Rechner

Einen Pumpenbetriebspunkt aus Fördermenge und Förderhöhe abschätzen.

Brunnenpumpen-Rechner

KOSTENLOS

Use the water level measured while pumping at the required flow, not the drilled depth or pump installation depth. Enter losses at that same flow, including the riser pipe and fittings.

Estimated duty point and power

Total dynamic head (TDH)

70.59 m

Pump shaft power

0.96 kW / 1.29 hp

Electrical input power

1.13 kW

Hydraulic power

0.58 kW

Head breakdown : 35 m + 30.59 m + 5 m = 70.59 m

For clean water (density 1,000 kg/m³). TDH = pumping lift + pressure head + entered losses. The pressure field is at the delivery point; for a free jet, include outlet velocity head in the losses. Efficiencies are assumptions until checked against manufacturer data.

Compare the flow and TDH with a manufacturer pump curve. Shaft power is an estimate, not a motor rating recommendation. Confirm well yield, submergence, bore diameter and electrical supply. This does not size a surface suction pump, pressure tank or cable.

Reference: WSU Extension — Total Dynamic Head

Hinweise und Grenzen

Die Ergebnisse beruhen auf den eingegebenen Daten und Annahmen. Vor einer technischen Anwendung mit Gerätekennlinien, Standortdaten und den zuständigen Fachpersonen abgleichen.

Ausführliche Anleitung, Beispiel und technische Hinweise (Englisch)

Enter the required flow, water level during pumping, outlet elevation, delivery pressure, total head losses and efficiencies. Compare the resulting duty point with a manufacturer pump curve.

Example

At 3 m³/h, a pumping water level of 30 m, outlet height of 5 m, pressure of 3 bar and losses of 5 m give about 70.59 m TDH and 0.96 kW shaft power at 60% pump efficiency.

Limitations

Uses clean water at 1,000 kg/m³ and g = 9.80665 m/s². Hydraulic power = density × g × flow × head. Shaft power divides by pump efficiency; electrical input also divides by motor efficiency. No automatic motor size or pump model is selected.