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Water flows at a rate of 20 L/s through a horizontal pipe
Chapter 5, Problem 80P(choose chapter or problem)
Problem 80P
Water flows at a rate of 20 L/s through a horizontal pipe whose diameter is constant at 3 cm as shown in Fig. P12-64. The pressure drop across a valve in the pipe is measured to be 2 kPa. Determine the irreversible head loss of the valve, and the useful pumping power needed to overcome the resulting pressure drop.
Questions & Answers
QUESTION:
Problem 80P
Water flows at a rate of 20 L/s through a horizontal pipe whose diameter is constant at 3 cm as shown in Fig. P12-64. The pressure drop across a valve in the pipe is measured to be 2 kPa. Determine the irreversible head loss of the valve, and the useful pumping power needed to overcome the resulting pressure drop.
ANSWER:
Step 1
First we have to find the head loss and the power required to overcome are to be determined when the water flows a horizontal pipe at flow rate 20 L /s.