shut operation and diagram animation

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Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Name	Description
`ControlledTanks`	Demonstrating the controller of a tank filling/emptying system
`Utilities` …

Model Modelica.Fluid.Examples.ControlledTankSystem.ControlledTanks
Demonstrating the controller of a tank filling/emptying system

With this example, the controller of a tank filling/emptying system is demonstrated.

The basic operation is to fill and empty the two tanks:

Valve 1 is opened and tank 1 is filled.
When tank 1 reaches its fill level limit, valve 1 is closed.
After a waiting time, valve 2 is opened and the fluid flows from tank 1 into tank 2.
When tank 1 reaches its minimum level, valve 2 is closed.
After a waiting time, valve 3 is opened and the fluid flows out of tank 2
When tank 2 reaches its minimum level, valve 3 is closed

The above "normal" process can be influenced by three buttons:

Button start starts the above process. When this button is pressed after a "stop" or "shut" operation, the process operation continues.
Button stop stops the above process by closing all valves. Then, the controller waits for further input (either "start" or "shut" operation).
Button shut is used to shutdown the process, by emptying at once both tanks by opening valve 2 and valve 3. When this is achieved, the process goes back to its start configuration where all 3 valves are closed. Clicking on "start", restarts the process.

The demo-run uses the following button presses:

This example is based on

Dressler I. (2004):: Code Generation From JGrafchart to Modelica. Master thesis, supervisor: Karl-Erik Årzén, Department of Automatic Control, Lund Institute of Technology, Lund, Sweden, March 30, 2004

Extends from Modelica.Icons.Example (Icon for runnable examples).