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a liquid with a viscosity of 1.381 x 10-3 kg/ m s flows through a horizontal stainless steel pipe that is 25 m long and has a diameter of 2 cm. the liquid flows with a volumetric flow rate of 0.006 m3 /s. what is the pressure drop and head loss in the pipe? how much pumping power must be added to the flow to overcome the pressure loss?

Answer :

The Darcy-Weisbach equation is used to determine the pressure drop in circular pipes: When Re2300, the flow is seen as laminar. The friction factor f in a laminar flow is computed using the formula f=64/Re.

The frictional loss in the hydro pipeline is known as the pipe head loss, and it is stated as a percentage of the available head. Water traveling through a pipe faces pressure loss due to friction, just like any viscous fluid does. The relationship between pressure drop and flow rate is reciprocal. The pressure drop increases with flow rate through a constriction. On the other hand, the pressure decrease is proportional to the flow rated.

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