Evaluation of the effects various tangential methods on the performance of flow process control / Muhammad Firdaus Saidatulakmar

The purpose of this study is to determine the effect of three different tangential methods which are Tangent method, Reformulated tangent method, and Two-point method applied towards the performance of flow process using Proportional-Integral-Derivative controller. This experiment includes the open loop test tuning on the flow controller which includes Performing Set Point Change Test by changing the set point value that was increase by 20% and 30% of the process span and see whether the process can be stable or not. Next test was the Load Disturbance Test where a change in manipulated variable was done to see if the changes made can be handled by the process to get a stable process again after the load disturbance. Settling time and Integral Absolute Time are used to determine which tangential method gives the best performance on the flow controller.