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Question 5 [12 Marks] The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m. Efficiency (%) 30 100 Total Head (m) 200 r 150 Head 100 Efficiency Power 8 500 1000 1500 Pump capacity (gal/min) 0 2000 4000 6000 Pump capacity (L/min) 2000 2500 8000 10000 40 Power (w)

Question 5 [12 Marks] The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m. Efficiency (%) 30 100 Total Head (m) 200 r 150 Head 100 Efficiency Power 8 500 1000 1500 Pump capacity (gal/min) 0 2000 4000 6000 Pump capacity (L/min) 2000 2500 8000 10000 40 Power (w)

Elements Of Electromagnetics
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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(previous test for fluids 3, exam prep) The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m.

Question 5 [12 Marks] The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m. Efficiency (%) 30 100 Total Head (m) 200 r 150 Head 100 Efficiency Power 8 500 1000 1500 Pump capacity (gal/min) 0 2000 4000 6000 Pump capacity (L/min) 2000 2500 8000 10000 40 Power (w)
Transcribed Image Text:Question 5 [12 Marks] The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m. Efficiency (%) 30 100 Total Head (m) 200 r 150 Head 100 Efficiency Power 8 500 1000 1500 Pump capacity (gal/min) 0 2000 4000 6000 Pump capacity (L/min) 2000 2500 8000 10000 40 Power (w)
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