4. A pump is used for the pumping of water from Tank A into Tank B in which the height difference between the surface levels of water is 20 m. The pipe diameter is 400 mm and the pipe length is 2500 m, the coefficient of friction is 0.0025 and the pump works at a speed of 700 rpm. The characteristics of the pump are shown in Table 4 below. You are required to: (a) (10 points) Intepret pump characteristic and system characteristic in a graph. (b) (10 points) Calculate the input and output power at the operating point. 0.3 0.35 0.4 0.5 17 16 14 18 60 81 83 Q(/s) 0 0.1 02 H, (m 15 21 15 30 80 45

4. A pump is used for the pumping of water from Tank A into Tank B in which the height difference between the surface levels of water is 20 m. The pipe diameter is 400 mm and the pipe length is 2500 m, the coefficient of friction is 0.0025 and the pump works at a speed of 700 rpm. The characteristics of the pump are shown in Table 4 below. You are required to: (a) (10 points) Intepret pump characteristic and system characteristic in a graph. (b) (10 points) Calculate the input and output power at the operating point. 0.3 0.35 0.4 0.5 17 16 14 18 60 81 83 Q(/s) 0 0.1 02 H, (m 15 21 15 30 80 45

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

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4. A pump is used for the pumping of water from Tank A into Tank B in which the height
difference between the surface levels of water is 20 m. The pipe diameter is 400 mm and the
pipe length is 2500 m, the coefficient of friction is f 0.0025 and the pump works at a speed
of 700 rpm. The characteristics of the pump are shown in Table 4 below
You are required to:
(a) (10 points) Intepret pump characteristic and system characteristic ina graph.
(b) (10 points) Calculate the input and output power at the operating point.
0.1 0.2 0.3 0.35 0.4 0.5
15 17 18 16 14
O30 60 SI83.80 45
H. (m)
11
Table 4: Data of the pump from the Manufacturer

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For the following pump-pipe system below, how will the discharge and pump head change if a smaller pump in the same family is used to replace the current pump? Increase or decrease? EB EA Head (ft) 350 300 250 225 200 150 100 50 0 0 5 10 O Pump head will decrease; discharge will decrease. O Pump head will increase; discharge will increase. O Pump head will increase; discharge will increase. O Pump head will decrease; discharge will increase. 15 20 Discharge (cfs) System head curve 25 H₂ -Intersection point Pump characteristics 30 35 40