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Describe one conventional feedback control loop and one cascade control loop for this process, stating, in general terms, the advantages and disadvantages of cascade control compared to conventional

Posted on December 9, 2020 by Geoffrey

(𝜏𝑠+1)𝑥𝐵′(𝑠)𝑥𝐹𝐵𝑠𝐹′(𝑠)−𝑥𝐵𝑠𝐹𝐵𝑠𝐹𝐵′(𝑠)where 𝜏𝑉𝐵𝑠has been defined as a parameter.The feedforward controller will be adjusting the product flow rate 𝐹𝐵′to maintain the product concentration at the setpoint value 𝑥𝐵𝑠𝑝′, hence the above becomes:(𝜏𝑠+1)𝑥𝐵𝑠𝑝′(𝑠)𝑥𝐹𝐵𝑠𝐹′(𝑠)−𝑥𝐵𝑠𝐹𝐵𝑠𝐹𝐵′(𝑠)𝑥𝐵𝑠𝐹𝐵𝑠𝐹𝐵′(𝑠)𝑥𝐹𝐵𝑠𝐹′(𝑠)−(𝜏𝑠+1)𝑥𝐵𝑠𝑝′(𝑠)𝐹𝐵′(𝑠)𝑥𝑥𝐵𝑠[𝐹′(𝑠)−𝐹𝐵𝑠𝑥(𝜏𝑠+1)𝑥𝐵𝑠𝑝′(𝑠)]Therefore, the feedforward controller adjusts the product flow rate 𝐹𝐵′(𝑡)as a function of the measured feed flow rate 𝐹(𝑡)(disturbance). The main disadvantage of this control scheme […]

Simulate and plot the liquid level in the tank ℎ′(𝑡)versus time for the uncontrolled process

Posted on December 8, 2020 by Geoffrey

Problem 2.Consider the stirred tank vessel from Problem 1 of Tutorial 5.Up to time 0 the process is at steady state. At time 0 there is a step change in the influent flow rate, i.e. 𝐹𝑖(𝑡)increases by 0.001 m3/s.Using Simulink for the simulations, carry out the following:a)Build in Simulinkthe closed loop block-diagram for the controlled […]

Use the PA levels for your equation based on your gender and activity level

Posted on November 30, 2020 by Geoffrey

Questions 1-9 in the file you downloaded above based on your results in Tables 1 and 2. Use complete sentences and ensure proper grammar and spelling. In order to calculate the EER equation (question #2 on the Word document you have downloaded in order to complete this assignment), you will need your PA value (physical […]