Answered: % Flowrate 100 90 80 70 60 40 30 20 10…

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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Question

A control valve is used to manipulate a liquid flowrate in the flowrate control loop. Figure 2 shows the flow characteristic of the control valve.
Determine the following:

i. Type of flow characteristic of the control valve.
ii. Flowrate through the valve if the valve travel is 45%. Noted that the flowrate of the liquid is 70 000 lb/h when the valve is fully opened.
iii. The maximum flow coefficient of the control valve, if the density of the liquid is half of the density of water and the pressure drop across the valve is 10 psi.

% Flowrate
100
90
80
70
50
40
30
20
10
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
% Valve Travel
Figure 2 Flow characteristic of control valve

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