tion 1 Part A QUESTIONS 17 In a particular process liquid fr

tion 1 Part A (QUESTIONS 1-7 In a particular process liquid from a previous reaction will be heated before proceeding to the next phase of reactions. A shell and tube heat exchanger has been installed for this purpose with steam providing the heat duty. A feedback controller is used to control the output temperature of the process liquid stream but the flow rate and the temperature of the input liquid stream vary too much for the feedback controller to be effective. Shell and Tube Heat ugud Heated Process of the input liquid stream? What sort of controller would be appropriate in addition to the feedback controler to account for the deviations Forwardeed controller without a model X201 Tablet

Solution

Question 1

Answer : Ratio controller

A ratio controller would be appropriate in addition to the feed back controller to account for the deviations of the input liquid stream. Because after recieving feed back signal the feed back controller the inlet steam providing the heat duty to be charged accordingly by rationalising the flow to get a standard temprature before reaching the shell and tube heat exchanger. By using ratio controller the flow is rationalised and additional heat is added to the steam.

Question 2

from the the given options and from the flow circuit after adding the ratio controller the signal from FC1 and TC1 will be combinedand sent to V2

Answer : The signal from FC1 and TC1 will be combined and sent to V2

Question 3

Yes this system will need a model/program to run the control system. without sketching of program or creating a module this system cant be implemented.

Answer : True

Question 4

Since flow transmitter is missing in the flow circuit but where as from the the flow diagram also states that only the presence of TC - temprature controller and no temprature sensor. flow controller was also shown in the given diagram.

Answer : option 1 and 2 ---------- flow transmitter and temprature sensor

Question 5

Answer : Type I

Question 6

control valve of the following control system component is need for this ratio system. Divider cant get a rationalise flow only the flow is diverted, feed bac controller gives only the exixting feed back signal and no rational flow, no temprature sensor can do control flow it only senses the temprature and the damper damps the flow

Answer ; control valve