Controller tuning for capacity and dead time processes

Prior to attempting this workshop, you should review Chapter 5 in the book. 

This workshop will illustrate that HYSYS may be used to determine the appropriate parameters for a PI controller that is controlling a capacitive process with significant dead time. You will leam that controller tuning is determined by the desired load or set-point response as well as the type of process and the values of the process parameters, which include process gain, time constant, and dead time. A review of the three tuning techniques that are used in this workshop is provided below. 

In the process reaction curve method, a process reaction curve is generated in response to a disturbance. This process curve is then used to calculate the controller gain, integral time and derivative time. The method is performed in open loop so that no control action occurs and the process response can be isolated. 

The process parameters that may be obtained from this process reaction curve are as follows  

The Ziegler-Nichols process reaction curve tuning method for a PI controller is as 

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Workshop 5 Controller tuning for capacity and dead time processes... 

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