blockHeater_T
Declaration of an FMU that exports an ideal heater or cooler with prescribed outlet temperature
Extends from Buildings.Fluid.FMI.ExportContainers.ReplaceableTwoPort (Container to export thermofluid flow models with two ports as an FMU).
Information
This example demonstrates how to export an FMU with a heater that takes as an input signal the leaving fluid temperature. The FMU has an instance of Buildings.Fluid.HeatExchangers.PrescribedOutlet.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | use_p_in (from PartialTwoPort) | true | = true to use a pressure from connector, false to output Medium.p_default |
| Modelica.Units.SI.HeatFlowRate | QMax_flow | Modelica.Constants.inf | Maximum heat flow rate for heating (positive) |
| Modelica.Units.SI.HeatFlowRate | QMin_flow | -Modelica.Constants.inf | Maximum heat flow rate for cooling (negative) |
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | 0.01 | Nominal mass flow rate |
| Modelica.Units.SI.PressureDifference | dp_nominal | 0 | Pressure |
| Assumptions | |||
| Boolean | allowFlowReversal (from PartialTwoPort) | true | = true to allow flow reversal, false restricts to design direction (inlet -> outlet) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Interfaces.Inlet | inlet (from PartialTwoPort) | Fluid inlet | |
| Interfaces.Outlet | outlet (from PartialTwoPort) | Fluid outlet | |
| Modelica.Blocks.Interfaces.RealInput | TSet | Set point temperature of the fluid that leaves port_b | |
| Modelica.Blocks.Interfaces.RealOutput | Q_flow | Heat added to the fluid (if flow is from port_a to port_b) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Interfaces.PartialTwoPort | com (from ReplaceableTwoPort) | ||
| Modelica.Blocks.Sources.RealExpression | dpCom (from ReplaceableTwoPort) | Pressure drop of the component |
Revisions
-
May 8, 2017, by Michael Wetter:
Updated heater model.
This is for Buildings, #763. -
January 22, 2016, by Michael Wetter:
Corrected type declaration of pressure difference. This is for #404. -
November 20, 2014 by Michael Wetter:
First implementation.