1. MISS. RAHIMAH BINTI OTHMAN
ERT 422/4
Piping and instrumentation diagram (P&id)
MISS. RAHIMAH BINTI OTHMAN (

2. QUIZ1 Which of the following statements are true? QUESTION 1:
Feedback and feedforward control both require measured variable.
The process variable to be controlled is measured in feedback control.
Feedforward control can be perfect in the theoretical sense that the controller can take action via the manipulated even while the controlled variable remains equal to its desired value.
Feedforward control can provide perfect control; that is, the output can be kept at its desired value, even with an imperfect process model.
Feedback control will always take action regardless of the accuracy of any process model that was used to design it and the source of a disturbance.
False/True
False/True
False/True
False/True
False/True

3. QUIZ1
QUESTION 2:
Ethanol-water mixture is feed to a batch distillation column. This distillation process will produce ethanol vapour at the top product which then condensate to produce liquid ethanol which will be collected into a distillate product tank. The liquid ethanol and an acetic acid liquid from the acid feed tank are then feed to a reactor. An exothermic reaction process will be occurred to produce ethyl acetate (a type of ester). Draw BFD for this process.

4. PIPING AND INSTRUMENTATION DIAGRAM (P&ID)
QUESTION 3:
Figure below shows the boiler system that used to supply hot steam to a turbine. This system need to supply 100 psi hot steam to the turbine where the PCV-100 will be opened when the pressure reached that desired pressure. With using pressure control through temperature measurement in the boiler, draw a feedforward loop control system.
BOILER
Hot steam
Water
PCV-100
Process variable need to be controlled = Pressure

5. QUIZ1 Which of the following statements are true? QUESTION 1:
Feedback and feedforward control both require measured variable.
The process variable to be controlled is measured in feedback control.
Feedforward control can be perfect in the theoretical sense that the controller can take action via the manipulated even while the controlled variable remains equal to its desired value.
Feedforward control can provide perfect control; that is, the output can be kept at its desired value, even with an imperfect process model.
Feedback control will always take action regardless of the accuracy of any process model that was used to design it and the source of a disturbance.
False/True
False/True
False/True
False/True
False/True

6. The Block Flow Diagram (BFD)
Answer 1:
Hot water out
Condenser
Ethanol liq.
Reactor
Ethyl acetate
Batch
distillation
Distillate
product tank
Cold water in
Ethanol-water mixture
Acid feed
tank

7. PIPING AND INSTRUMENTATION DIAGRAM (P&ID)
Answer 1
Figure below shows the boiler system that used to supply hot steam to a turbine. This system need to supply 100 psi hot steam to the turbine where the PCV-100 will be opened when the pressure reached that desired pressure. With using pressure control through temperature measurement in the boiler, draw a feedforward loop control system.
TIC Y TT
BOILER
Hot steam
Water
Process variable need to be controlled = Pressure PI