Qs: A blending system is illustrated in Figure 2. where w1, W2 and w are mass flow rates, X1, X2 and x are mass fractions of component A. It is required to maintain the output composition (x) at a specific value by a control system. Assume there is an important disturbance that occurs to x1. A) Suggest a suitable multiloop control system that provides zero steady-state offset for the output composition, corrects for unmeasurable disturbances, and attempts to eliminate the effects of the disturbance in x1. B) Draw the block diagram and the P&ID for the system in Figure 2 after adding the multiloop control systems in (A). Hint: add a sensor where needed. Input 2 | X2 = 1 Input 1 X1 W2 W1 (Pure A} Mixture of A and B} Output

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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A blending system is illustrated in Figure 2. where W1, W2 and w are mass flow rates,
X1, X2 and x are mass fractions of component A. It is required to maintain the output
composition (x) at a specific value by a control system. Assume there is an important
disturbance that occurs to x1.
A) Suggest a suitable multiloop control system that provides zero steady-state
offset for the output composition, corrects for unmeasurable disturbances, and
attempts to eliminate the effects of the disturbance in x1.
B) Draw the block diagram and the P&ID for the system in Figure 2 after adding
the multiloop control systems in (A). Hint: add a sensor where needed.
Input 2
X2 = 1
Input 1
W2
W1
{Pure A}
{Mixture of A and B}
Output
Transcribed Image Text:Qs: A blending system is illustrated in Figure 2. where W1, W2 and w are mass flow rates, X1, X2 and x are mass fractions of component A. It is required to maintain the output composition (x) at a specific value by a control system. Assume there is an important disturbance that occurs to x1. A) Suggest a suitable multiloop control system that provides zero steady-state offset for the output composition, corrects for unmeasurable disturbances, and attempts to eliminate the effects of the disturbance in x1. B) Draw the block diagram and the P&ID for the system in Figure 2 after adding the multiloop control systems in (A). Hint: add a sensor where needed. Input 2 X2 = 1 Input 1 W2 W1 {Pure A} {Mixture of A and B} Output
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