Question 1 (25 marks) a) b) Briefly explain (3) differences between open-loop systems and closed-loop systems. You need

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Question 1 25 Marks A B Briefly Explain 3 Differences Between Open Loop Systems And Closed Loop Systems You Need 1 (39.38 KiB) Viewed 52 times

Question 1 (25 marks) a) b) Briefly explain (3) differences between open-loop systems and closed-loop systems. You need to draw diagrams to illustrate your answers. [5 Marks) With the help of a block diagram, explain various elements in the typical process control system loop. [5 Marks) The temperature of the steam distillation plant is controlled by an ON-OFF controller. The heater is located at the bottom of the distillation tank with RTD is used to monitor the temperature of the plant. c) iii. Draw a block diagram indicating all the components and variables in the system. [4 Marks) Explain the operation of the ON-OFF controller in this application. [3 Marks] Briefly explain the (2) advantages and (2) disadvantages of the ON- OFF controller [4 Marks] Suggest (2) improvement could be made to the system to prolong the life of the heater [4 Marks) iv.