In a pumping system, the power consumed by the system has a CUBIC relationship with the speed of the pump as given by the formula below.When the pump is running at 3200 rpm the power drawn is 10.5 kW. Determine the new power requirement (kW) if the pump speed is increased to 6000 rpm.

The volumetric flow rate to be pumped is 4 L/s.The required useful pump head = 131 m The efficiency of the pump is to be 79 %.The density and viscosity of water at anticipated operation conditions are taken to be 1000 kg/m3 and 0.00131 kg/m-s, respectively.Determine the power requirement of the pump in kW.

A vented tanker is to be filled with fuel oil with density = 920 kg/m3 and viscosity = 0.045 Pa s from an underground reservoir using a 25-m-long, 4-cm-diameter smooth plastic hose. The elevation difference between the oil level in the reservoir and the top of the tanker where the hose is discharged is 5 m. The capacity of the tanker is 18 m3 and the filling time is 30 min. Assume the underground reservoir has its pressure maintained at atmospheric level. Determine the required power input to the pump if the mechanical efficiency of the pump is 82%. Express your answer in kW.

An electric pump is used to raise water from a well, as shown.The pump does work in raising 10 kg of the water through a vertical distance of 8.0 m in 5.0 s. Calculate the power the pump uses to raise the water.

What is the increase in mechanical energy if pressure of water is increased from 100 kPa to 900 kPa by a pump? Express your answer in kJ/kg.

Calculate power if a pump which can lift 400kg of water through a height of 10m in 20secs?