Pump power calculator
Enter your values. The answer and the full worked solution update as you type.
Result
Shaft power9.81 kW
Hydraulic power7.357 kW
Step-by-step solution
Hydraulic power
Ph = ρgQH = 1000·9.81·0.03·25 = 7.357 kW
Shaft power
Ps = Ph/η = 9.81 kW
Key formulas
- Hydraulic power
- Ph = ρ·g·Q·H = Q·Δp
- Shaft power
- Pshaft = Ph/ηpump
- Electrical power
- Pel = Pshaft/ηmotor
- Pump head
- H = Δz + Δp/(ρ·g) + hL
- System losses
- hL = (f·L/D + ΣK)·V²/(2g)
Practise Pumps & pump power
A calculator gives the answer. In the exam you need the method: practise it with new problems, hints and worked solutions.