Pumps, Pipe and Channel FlowsThe main water line into a

Chapter 4, Problem 83HP

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QUESTION:

Problem 83HP

Pumps, Pipe and Channel Flows

The main water line into a tall building has a pressure of 600 kPa at 5mbelowground level, as shown in Fig. P4.83 Apump brings the pressure up so that thewater can be delivered at 200 kPa at the top floor 100 m above ground level. Assume a flow rate of 10 kg/s liquid water at 10°C and neglect any difference in kinetic energy and internal energy u. Find the pump work.

FIGURE P4.83

Questions & Answers

QUESTION:

Problem 83HP

Pumps, Pipe and Channel Flows

The main water line into a tall building has a pressure of 600 kPa at 5mbelowground level, as shown in Fig. P4.83 Apump brings the pressure up so that thewater can be delivered at 200 kPa at the top floor 100 m above ground level. Assume a flow rate of 10 kg/s liquid water at 10°C and neglect any difference in kinetic energy and internal energy u. Find the pump work.

FIGURE P4.83

ANSWER:

Solution

Step 1 of 2

In this problem, we have to find the work done by the pump of the difference in internal energy and kinetic energy.

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