Articles

September 10, 2017

PID controlling gas pressure of feed to burner

This case concerns a PID controller that controls the gas pressure in a pipeline feeding gas to burners. Plant personnel were wondering if this control loop could be improved; they felt that the pressure took a long time to settle to setpoint; as a result, the heat input to the plant (which they control by adjusting the setpoint) was harder to control.
September 12, 2017

Tuning of PID controllers in Cokes furnaces

Cokes furnaces are primarily producing cokes, for ironmaking. In this process, however, gasses are produced as well. It is important that the pressures in the furnaces are kept at target with minimal variations.
October 2, 2017

PID control

Cokes furnaces are primarily producing cokes, for ironmaking. In this process, however, gasses are produced as well. It is important that the pressures in the furnaces are kept at target with minimal variations.
October 2, 2017

Feedforward Control

How to design a feedforward controller A feedforward controller should be designed on the basis of a model having the following form: Where: Process Variable Process […]