MassFlowSource_TIdeal flow source that produces a prescribed mass flow with prescribed temperature, mass fraction and trace substances |
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Models an ideal flow source, with prescribed values of flow rate, temperature, composition and trace substances:
- Prescribed mass flow rate.
- Prescribed temperature.
- Boundary composition (only for multi-substance or trace-substance flow).
If use_m_flow_in is false (default option), the m_flow parameter
is used as boundary pressure, and the m_flow_in input connector is disabled; if use_m_flow_in is true, then the m_flow parameter is ignored, and the value provided by the input connector is used instead.
The same thing goes for the temperature and composition
Note, that boundary temperature, mass fractions and trace substances have only an effect if the mass flow is from the boundary into the port. If mass is flowing from the port into the boundary, the boundary definitions, with exception of boundary flow rate, do not have an effect.
Parameters (9)
| nPorts |
Value: 0 Type: Integer Description: Number of ports |
|---|---|
| use_m_flow_in |
Value: false Type: Boolean Description: Get the mass flow rate from the input connector |
| use_T_in |
Value: false Type: Boolean Description: Get the temperature from the input connector |
| use_X_in |
Value: false Type: Boolean Description: Get the composition from the input connector |
| use_C_in |
Value: false Type: Boolean Description: Get the trace substances from the input connector |
| m_flow |
Value: 0 Type: MassFlowRate (kg/s) Description: Fixed mass flow rate going out of the fluid port |
| T |
Value: Medium.T_default Type: Temperature (K) Description: Fixed value of temperature |
| X |
Value: Medium.X_default Type: MassFraction[Medium.nX] (kg/kg) Description: Fixed value of composition |
| C |
Value: Medium.C_default Type: ExtraProperty[Medium.nC] Description: Fixed values of trace substances |
Connectors (5)
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ports |
Type: FluidPort_b[nPorts] |
|---|---|---|
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m_flow_in |
Type: RealInput Description: Prescribed mass flow rate |
|
T_in |
Type: RealInput Description: Prescribed fluid temperature |
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X_in |
Type: RealInput[Medium.nX] Description: Prescribed fluid composition |
|
C_in |
Type: RealInput[Medium.nC] Description: Prescribed boundary trace substances |
Components (1)
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medium |
Type: BaseProperties Description: Medium in the source |
|---|
Used in Examples (8)
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Modelica.Fluid.Examples.Tanks Two tanks connected with pipes at different heights |
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Modelica.Fluid.Examples.AST_BatchPlant.Test Tank with one time-varying top inlet mass flow rate and a bottom outlet into the ambient |
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Modelica.Fluid.Examples.AST_BatchPlant.Test Demonstrates a tank with one constant top inlet mass flow rate and a bottom outlet into the ambient |
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Modelica.Fluid.Examples Comparing a circular with a non-circular pipe |
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Modelica.Fluid.Examples.HeatExchanger Simulation for the heat exchanger model |
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Modelica.Fluid.Examples.TraceSubstances Demonstrates a room volume with CO2 accumulation |
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Modelica.Fluid.Examples.TraceSubstances Demonstrates a room volume with CO2 controls |
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Modelica.Fluid.Examples.Explanatory Differences between using one port with and without explicit junction model and two port sensors for fluid temperature measuring |