Maria A. Rondon (Master of Science in Petroleum Engineering)
Dynamic Simulation of a Vertical Two-Phase Separator
(101 pp.-Chapters VI)
Directed by Dr. Mauricio Prado and Dr. Dale Doty
(163 words)
This study examines in detail a separator’s performance when using all possible combinations of proportional, integral and differential control systems for both separator vessel pressure control and liquid level control.
A new comprehensive dynamic model was developed to describe the transient characteristics of the two-phase separator behavior, based on the physical process and fundamental principles. The model uses linear control theory.
The model was partially validated using experimental data gathered from a fully instrumented experimental separator facility. The results indicate that assuming reasonable input data, the model yields reasonable predictions for both the liquid level and pressure.This study supports the conclusion that it is desirable to have integral control action added to a proportional controller or proportional-derivative controller in the liquid level system. This ensures that the liquid offset is eventually removed, thereby decreasing the possibility of subsequent flooding. This study also supports the conclusion that in the pressure control system, any type of controller can be used.
Download thesis (TUALP members only)