What power is required to 10liters of water to a height of 6m, in one minute through a pipe of 1.25cm diameter ?
Asked by anirbanbag81
4th April 2018,
5:19 AM
Answered by Expert
Answer:
As per Bernouli's equation, energy of fluid P+(1/2)ρv2 + ρgh = constant.
P - pressure, ρ - density, v - velocity, g - acceleration due to gravity, h is height.
velocity at inlet of pipe = Volumetric flowrate / crosssection Area = 
Let us assume pressure drop from pump outlet to end of 6 metres pipe is negligible. Also velocity of water at outle of 6 m pipe is very less.
hence required energy per unit volume E = (1/2)ρv2 + ρgΔh
power is obtained by multiplying the above equation by volumetric flow rate.
hence power P = 
we get P = 9.954 Watts
Answered by Expert
4th April 2018,
12:57 PM
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