Process Control using a PID Controller
Model ID: 866
This model shows how a flow model can be coupled to a process control mechanism.
Controlling application parameters according to other application parameters is important within process engineering. Most control mechanisms use the data at a wall or an outlet to control inlet parameters. More accurate control can occur if you can control inlet parameters due to data found within a component or piece of equipment.
This model couples mass transfer to fluid flow with two inlets (one controlled) and a PID controller. In this case, fluid flow is controlled according to the concentration at a point within the geometry - therefore a requirement for a physical model.
The model makes use of Projection variables in order to couple the Ordinary differential equation of the PID controller to the concentration point and the inlet velocity.