Design a feedforwardfeedback control system for the blending system in Example 15.5, for a situation in which
Question:
Table 12.4 Controller Design Relations Based on the ITAE Performance Index and a First-Order-plus-Time-Delay Model (Lipták, 2006)*† Type of Input Type of Controller Mode A B Disturbance PI 0.859 -0.977 0.674 -0.680 Disturbance PID 1.357 -0.947 0.842 -0.738 D 0.381 0.995 PI Set point 0.586 -0.916 1.03* -0.165* Set point PID 0.965 -0.85 0.796* -0.1465* 0.308 0.929 D *Design relation:Y = A(0/t)® where Y = KK¸ for the proportional mode, t/t, for the integral mode, and t,/t for the derivative mode. *For set-point changes, the design relation for the integral mode is t/t, = A + B(0/t). with unmeasured disturbances and modeling errors. Thus, a combined feedforward-feedback control system is preferred in practice. 0.37 Static gain - - Dynamic compensation 0.365 0.36 0.355 0.35 0.345 0.34 0.335 15 20 25 30 35 40 45 50 Time (min) 10 (a) x (mass fraction)
Step by Step Answer:
The block diagram for the feedforwardfeedback control system is shown in Fig 1512 a Not required b Feedforward controlers From example 155 G IP K IP 0...View the full answer
Process Dynamics and Control
ISBN: 978-1119385561
4th edition
Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellichamp, Francis J. Doyle
Related Video
Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.
Students also viewed these Physics questions
-
The exit composition C3 of the blending system in Fig is controlled using a digital feedback controller. The exit stream is automatically sampled every minute, and the composition measurement is sent...
-
For the liquid storage system shown in Fig the control objective is to regulate liquid level h2 despite disturbances in flow rates, q1 and q4. Flow rate q2 can be manipulated. The two hand valves...
-
The closed-loop system in Fig has the following transfer functions: (a) Design a feedforward controller based on a steady-state analysis. (b) Design a feedforward controller based on a dynamic...
-
A Monica who is aged 54, is employed as a Senior Manager with Abacus, a large accounting firm based in Sydney. During the 2020 tax year Abacus contributed $20,000 into QRest Super, which Monica...
-
Performance-based logistics. Refer to the Journal of Business Logistics (Vol. 36, 2015) study of the factors that lead to successful performance-based logistics (PBL) projects , Exercise 1.15 (p....
-
Three spheres, each of mass m, can slide freely on a frictionless, horizontal surface. Spheres A and B are attached to an inextensible, inelastic cord of length l and are at rest in the position...
-
Taylor Sales Corp. maintains a large, full-time internal audit staff that reports directly to the chief accountant. Audit reports prepared by the internal auditors indicate that the system is...
-
a. Based on this information alone, can you determine whether White can pay a $2,000 cash dividend? Why or why not? b. Reconstruct the accounting equation for each company using percentages on the...
-
1. Different types of groups 2. Define small group communication 3. Why do we join groups? 4. Are you a member of any professional or social groups? Why did you join the group? 5. What would you...
-
1.Why did US film companies JV with Chinese companies - Where on the value chain did Chinese companies add value? Why is a JV presumably better than a merger and acquisition or a strategic alliance?...
-
A liquid-phase reversible reaction, A B, takes place isothermally in the continuous stirred-tank reactor shown in Fig. E15.8. The inlet stream does not contain any B. An over-ï¬ow line...
-
The distillation column in Fig. 15.8 has the following transfer function model: with G v = G m = G t = 1. (a) Design a feedforward controller based on a steady-state analysis. (b) Design a...
-
Find the quality factor of a circuit with capacitance C = 2.0F and inductance L = 5.0mH if the maintenance of un-damped oscillations in the circuit with the voltage amplitude across the capacitor...
-
A 100-Year Bond does not have appreciably more price risk than a 30-Year Bond. Why is this?
-
Please identify 2 pros (advantages) and 2 cons (disadvantages) of investing in real estate as a Private Equity Investor within a syndicate or consortium of equity investors (that is, you are an...
-
Discuss the potential issues with regard to working capital management that your group's company might have to deal with when/if it expanded/expands/will expand its operation to a foreign...
-
For this Reflection, rewatch (watch) the film "Reflecting on Anti-Bias Education in Action: The Early Years". The film can be found in Module 6. What can educators learn from watching the film? Be...
-
As a financial analyst specializing in the aerospace industry for USC Pension & Investment Inc., you are asked by your managing partner, Mr. Adam Smith, to evaluate the potential of this new GPWS...
-
Petre Company was started on January 1, Year 1. During Year 1, the company experienced the following three accounting events: (1) earned cash revenues of $14,500, (2) paid cash expenses of $9,200,...
-
The domain of the variable in the expression x 3/x + 4 is________.
-
Consider the batch reactor system studied by Aziz et al.,3. The two reactions, A + B C and A + C D, are carried out in a jacketed batch reactor, where C is the desired product and D is a waste...
-
Figure E. illustrates two CSTRS in a chemical manufacturing plant. Reactants A and B must be fed to the first stirred-tank at a constant molar ratio. Reactant C is introduced to the second...
-
In this exercise, you will evaluate the individual units at the nominal steady state for purposes of understanding how the plant would operate without recycle. Use Simulink to simulate the lull...
-
A tall pitot-static tube is mounted through and 1.5-mabove the roof of a performance car such that it senses thefreestream flow. Estimate the static, stagnation, and dynamicpressure sensed at 325 kph...
-
If cluster membership is determined by examining the squared distance of each respondent's position from the initial cluster centers, list the respondents assigned to initial Cluster#1 (5 points) ...
-
How does the perception of organizational justice affect employee motivation and job satisfaction, and what can organizations do to promote a sense of fairness and equity ?
Study smarter with the SolutionInn App