A process liquid is pumped from a storage tank to a distillation column, using a centrifugal pump. The pipeline is 80 mm internal diameter commercial steel pipe, 100 m long. Miscellaneous losses are equivalent to 600 pipe diameters. The storage tank operates at atmospheric pressure and the column at 1.7 bara. The lowest liquid level in the tank will be 1.5 m above the pump inlet, and the feed point to the column is 3 m above the pump inlet. Plot the system curve on the pump characteristic given in Figure A and determine the operating point and pump efficiency. Properties of the fluid: density 900 kg/m^3, viscosity 1.36 m Nm^(-2)s

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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A process liquid is pumped from a storage tank to a distillation column, using a centrifugal pump. The pipeline is 80 mm internal diameter commercial steel pipe, 100 m long. Miscellaneous losses are equivalent to 600 pipe diameters. The storage tank operates at atmospheric pressure and the column at 1.7 bara. The lowest liquid level in the tank will be 1.5 m above the pump inlet, and the feed point to the column is 3 m above the pump inlet.

Plot the system curve on the pump characteristic given in Figure A and determine the operating point and pump efficiency.

Properties of the fluid: density 900 kg/m^3, viscosity 1.36 m Nm^(-2)s

Liquid head, m
30.0
25.0
20.0
15.0
10.0
5.0
0.0
10
System
curve
20
30
Pump curve
77
40
79
Efficiency
80
79
50
77
60
70
80
Transcribed Image Text:Liquid head, m 30.0 25.0 20.0 15.0 10.0 5.0 0.0 10 System curve 20 30 Pump curve 77 40 79 Efficiency 80 79 50 77 60 70 80
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