Modelica.Thermal.HeatTransfer.Sources

Thermal sources

Information



Extends from Modelica.Icons.SourcesPackage (Icon for packages containing sources).

Package Content

NameDescription
Modelica.Thermal.HeatTransfer.Sources.FixedTemperature FixedTemperature Fixed temperature boundary condition in Kelvin
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature PrescribedTemperature Variable temperature boundary condition in Kelvin
Modelica.Thermal.HeatTransfer.Sources.FixedHeatFlow FixedHeatFlow Fixed heat flow boundary condition
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow PrescribedHeatFlow Prescribed heat flow boundary condition

Modelica.Thermal.HeatTransfer.Sources.FixedTemperature Modelica.Thermal.HeatTransfer.Sources.FixedTemperature

Fixed temperature boundary condition in Kelvin

Information


This model defines a fixed temperature T at its port in Kelvin, i.e., it defines a fixed temperature as a boundary condition.

Parameters

NameDescription
TFixed temperature at port [K]

Connectors

NameDescription
port 

Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature

Variable temperature boundary condition in Kelvin

Information


This model represents a variable temperature boundary condition. The temperature in [K] is given as input signal T to the model. The effect is that an instance of this model acts as an infinite reservoir able to absorb or generate as much energy as required to keep the temperature at the specified value.

Connectors

NameDescription
port 
T[K]

Modelica.Thermal.HeatTransfer.Sources.FixedHeatFlow Modelica.Thermal.HeatTransfer.Sources.FixedHeatFlow

Fixed heat flow boundary condition

Information


This model allows a specified amount of heat flow rate to be "injected" into a thermal system at a given port. The constant amount of heat flow rate Q_flow is given as a parameter. The heat flows into the component to which the component FixedHeatFlow is connected, if parameter Q_flow is positive.

If parameter alpha is <> 0, the heat flow is multiplied by (1 + alpha*(port.T - T_ref)) in order to simulate temperature dependent losses (which are given with respect to reference temperature T_ref).

Parameters

NameDescription
Q_flowFixed heat flow rate at port [W]
T_refReference temperature [K]
alphaTemperature coefficient of heat flow rate [1/K]

Connectors

NameDescription
port 

Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow

Prescribed heat flow boundary condition

Information


This model allows a specified amount of heat flow rate to be "injected" into a thermal system at a given port. The amount of heat is given by the input signal Q_flow into the model. The heat flows into the component to which the component PrescribedHeatFlow is connected, if the input signal is positive.

If parameter alpha is <> 0, the heat flow is multiplied by (1 + alpha*(port.T - T_ref)) in order to simulate temperature dependent losses (which are given with respect to reference temperature T_ref).

Parameters

NameDescription
T_refReference temperature [K]
alphaTemperature coefficient of heat flow rate [1/K]

Connectors

NameDescription
Q_flow[W]
port 

Automatically generated Mon Sep 23 17:21:09 2013.