Switching control handles on interacting loops with Aptitune
The LGO pump-around flow of a crude distillation tower is under consideration in this case study. The solution proposed was to swap two control valves for flow and return temperature. The swapping of the control valves of these two interacting loops helped to always guarantee a tightly controlled PA flow.
The Inca Aptitune software was indispensable in the controllability analysis and re-tuning of these two interacting loops, after having swapped the control valves on DCS.
Learn in this case study:
- How to design a new control concept based on process know-how and analysis
- How AptiTune helps to find the optimal tuning for this interacting control pair.
Discover how better control structures and optimal tuning optimize CDU units — Fill in the form.