This simulation shows a vertical closed pressure vessel being fed with a supply of nitrogen. The nitrogen exits the vessel through a single line with a valve controlling the flow.
The pressure in the vessel is partially controlled by balancing the exit valve position depending on the feed flow to the vessel. This makes the system control well on upstream disturbance but gives a poor response to downstream disturbance.
The feed to the vessel can be varied by introducing a second flow of gas to test the effect on the pressure control system.
Disturbances can be added to the upstream and downstream pressures of the system to allow realistic learning on how the control method responds to the type of disturbances found on a real plant.
The P&ID settings of the controller can be altered to improve the tuning of the controller for the various conditions that can be created.
The simulation includes exercise’s based around the tuning of the pressure control system.
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