WOLFRAM SYSTEMMODELER

PrescribedHeatFlow

Prescribed heat flow boundary condition

Wolfram Language

In[1]:=
SystemModel["Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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 (2)

T_ref

Value: 293.15

Type: Temperature (K)

Description: Reference temperature

alpha

Value: 0

Type: LinearTemperatureCoefficient (ยน/K)

Description: Temperature coefficient of heat flow rate

Connectors (2)

Q_flow

Type: RealInput

port

Type: HeatPort_b

Used in Examples (8)

SimpleCooling

Modelica.Thermal.FluidHeatFlow.Examples

Simple cooling circuit

ParallelCooling

Modelica.Thermal.FluidHeatFlow.Examples

Cooling circuit with parallel branches

IndirectCooling

Modelica.Thermal.FluidHeatFlow.Examples

Indirect cooling circuit

PumpAndValve

Modelica.Thermal.FluidHeatFlow.Examples

Cooling circuit with pump and valve

PumpDropOut

Modelica.Thermal.FluidHeatFlow.Examples

Cooling circuit with drop out of pump

ParallelPumpDropOut

Modelica.Thermal.FluidHeatFlow.Examples

Cooling circuit with parallel branches and drop out of pump

Motor

Modelica.Thermal.HeatTransfer.Examples

Second order thermal model of a motor

GenerationOfFMUs

Modelica.Thermal.HeatTransfer.Examples

Example to demonstrate variants to generate FMUs (Functional Mock-up Units)

Used in Components (1)

DirectCapacity

Modelica.Thermal.HeatTransfer.Examples.Utilities

Input/output block of a direct heatCapacity model