Refer to Figure P19.69. Answer the following questions. Explain each answer. At what flowrate is NPSHA =

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Refer to Figure P19.69. Answer the following questions. Explain each answer.

At what flowrate is NPSHA = 3.2 m? Comment on the feasibility of operating at this flowrate.

At what flowrate does the pump produce 33.5 m of head? What is the system frictional loss at this flowrate? What is the pressure drop across the control valve at this flowrate?

At what flowrate does cavitation become a problem?

What is the maximum possible flowrate?

If the source and destination pressures are identical, what is the elevation difference between source and destination?

At a flowrate of 1 L/s, what is the system frictional head loss?

At a flowrate of 1 L/s, what head is developed by the pump?

At a flowrate of 1 L/s, what is the head loss across the control valve?


Figure P19.69Head (m of liquid) NPSH (m of liquid) 60 55 50 45 40 35 30 25 20 15 10 5 0 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6

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Analysis Synthesis And Design Of Chemical Processes

ISBN: 9780134177403

5th Edition

Authors: Richard Turton, Joseph Shaeiwitz, Debangsu Bhattacharyya, Wallace Whiting

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