WOLFRAM SYSTEM MODELER
RoomCO2Demonstrates a room volume with CO2 accumulation |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Modelica.Fluid.Examples.TraceSubstances.RoomCO2"]
Out[1]:=
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This example consists of a volume with a carbon dioxide concentration that corresponds to 1.519E-3 kg/kg, which is equal to 1000 PPM. There is a fresh air stream with a carbon dioxide concentration of about 300 PPM. The fresh air stream is such that the air exchange rate is about 5 air changes per hour. After 1 hour of ventilation, the volume's carbon dioxide concentration is close to the concentration of the fresh air.
The nominal value for the trace substance is set to C_nominal={1.519E-3}.
This scales the residual equations that are used by the solver to the right order
of magnitude.
Components (8)
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C |
Type: Constant Description: Substance concentration, raising to 1000 PPM CO2 |
|---|---|---|
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boundary4 |
Type: FixedBoundary Description: Boundary source component |
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traceVolume |
Type: TraceSubstances Description: Ideal one port trace substances sensor |
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system |
Type: System Description: System properties and default values (ambient, flow direction, initialization) |
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boundary1 |
Type: MassFlowSource_T Description: Ideal flow source that produces a prescribed mass flow with prescribed temperature, mass fraction and trace substances |
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volume |
Type: ClosedVolume Description: Volume of fixed size, closed to the ambient, with inlet/outlet ports |
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pipe |
Type: StaticPipe Description: Basic pipe flow model without storage of mass or energy |
|
traceSource |
Type: TraceSubstances Description: Ideal one port trace substances sensor |