Determine the available NPSH for the system shown in Fig. 13.38 (b). The fluid is water at 80°C and the atmospheric pressure is 101.8 kPa. The water level in the tank is 2.0 m below the pump inlet. The vertical leg of the suction line is a DN 80 Schedule 40 steel pipe, whereas the horizontal leg is a DN 50 Schedule 40 pipe, 1.5 m long. The elbow is of the long-radius type. Neglect the loss in the reducer. The foot valve and strainer are of the hingeddisk type. The flow rate is 300 L/min.
Determine the available NPSH for the system shown in Fig. 13.38 (b). The fluid is water at 80°C and the atmospheric pressure is 101.8 kPa. The water level in the tank is 2.0 m below the pump inlet. The vertical leg of the suction line is a DN 80 Schedule 40 steel pipe, whereas the horizontal leg is a DN 50 Schedule 40 pipe, 1.5 m long. The elbow is of the long-radius type. Neglect the loss in the reducer. The foot valve and strainer are of the hingeddisk type. The flow rate is 300 L/min.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Determine the available NPSH for the system shown in Fig. 13.38 (b). The fluid is water at 80°C and the atmospheric pressure is 101.8 kPa. The water level in the tank is 2.0 m below the pump inlet. The vertical leg of the suction line is a DN 80 Schedule 40 steel pipe, whereas the horizontal leg is a DN 50 Schedule 40 pipe, 1.5 m long. The elbow is of the long-radius type. Neglect the loss in the reducer. The foot valve and strainer are of the hingeddisk type. The flow rate is 300 L/min.
Transcribed Image Text:h, due to losses
in suction line
↑
Flow
##
Discharge
line
Eccentric reducer
atmospheric pressure head with
tank open
Liquid with
vapor pressure head hop
Foot valve with
strainer
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