How to calcuate power using height of water from pump,diameter of nozzle and velocity of flow from nozzle?

Question

How to calcuate power using height of water from pump,diameter of nozzle and velocity of flow from nozzle?

Answer 1

Power = pressure * volume

To get this, you need to calculate:

pressure = rho * g * h

where rho fluid density(~1000kg/m3 for fresh water)

g is acceleration due to gravity (9.8m/s2)

h is height in m from nozzle to top surface of water above the top of pipe

In US customary units, rho*g is 62.4 lb/ft3 for fresh water, so just multiply by height in ft

Volume = area of nozzle * velocity

This calculation is the max power available, so assumes you have big pipe and efficient nozzle design.