WOLFRAM SYSTEMMODELER

VolumeFlow

Enforces constant volume flow

Wolfram Language

In[1]:=
SystemModel["Modelica.Thermal.FluidHeatFlow.Sources.VolumeFlow"]
Out[1]:=

Information

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

Fan resp. pump with constant volume flow rate. Pressure increase is the response of the whole system.

Coolant's temperature and enthalpy flow are not affected.

Setting parameter m (mass of medium within fan/pump) to zero leads to neglect of temperature transient cv*m*der(T).

Thermodynamic equations are defined by Partials.TwoPort.

Parameters (7)

medium

Value: Modelica.Thermal.FluidHeatFlow.Media.Medium()

Type: Medium

Description: Medium in the component

m

Value:

Type: Mass (kg)

Description: Mass of medium

T0

Value:

Type: Temperature (K)

Description: Initial temperature of medium

T0fixed

Value: false

Type: Boolean

Description: Initial temperature guess value or fixed

tapT

Value: 1

Type: Real

Description: Defines temperature of heatPort between inlet and outlet temperature

useVolumeFlowInput

Value: false

Type: Boolean

Description: Enable / disable volume flow input

constantVolumeFlow

Value:

Type: VolumeFlowRate (m³/s)

Description: Volume flow rate

Outputs (4)

T

Type: Temperature (K)

Description: Outlet temperature of medium

T_a

Type: Temperature (K)

Description: Temperature at flowPort_a

T_b

Type: Temperature (K)

Description: Temperature at flowPort_b

dT

Type: TemperatureDifference (K)

Description: Temperature increase of coolant in flow direction

Connectors (3)

flowPort_a

Type: FlowPort_a

flowPort_b

Type: FlowPort_b

volumeFlow

Type: RealInput

Components (1)

medium

Type: Medium

Description: Medium in the component

Used in Examples (9)

DCPM_Cooling

Modelica.Electrical.Machines.Examples.DCMachines

Test example: Cooling of a DCPM motor

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

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

OneMass

Modelica.Thermal.FluidHeatFlow.Examples

Cooling of one hot mass

TwoMass

Modelica.Thermal.FluidHeatFlow.Examples

Cooling of two hot masses

TestOpenTank

Modelica.Thermal.FluidHeatFlow.Examples

Test the OpenTank model