Using the Ziegler- Nichols rule, determine the controlling setting for P and PI mods of control of the chemical reactor. Using the block diagram, when a unit step change is given to set point, find the offset for the closed loop system with P and /PI mods. Show all the steps in your solution and use the graphs. Thanks

The block diagram is reproduced in the following Using the Ziegler- Nichols rule, determine the controlling setting for P and PI mods of control of the chemical reactor. Using the block diagram, when a unit step change is given to set point, find the offset for the closed loop system with P and PI mods. The block diagram is reproduced in the following Using the Ziegler- Nichols rule, determine the controlling setting for P and PI mods of control of the chemical reactor. Using the block diagram, when a unit step change is given to set point, find the offset for the closed loop system with P and PI mods