modelSourceW

Flowrate source for gas flows

Extends from Modelica.Icons.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions), Icons.Gas.SourceW.

Information

Modelling options

The actual gas used in the component is determined by the replaceable Medium package. In the case of multiple component, variable composition gases, the nominal gas composition is given by Xnom,whose default value is Medium.reference_X .

If G is set to zero, the flowrate source is ideal; otherwise, the outgoing flowrate decreases proportionally to the outlet pressure.

If the in_w0 connector is wired, then the source massflowrate is given by the corresponding signal, otherwise it is fixed to w0.

If the in_T connector is wired, then the source temperature is given by the corresponding signal, otherwise it is fixed to T.

If the in_X connector is wired, then the source massfraction is given by the corresponding signal, otherwise it is fixed to Xnom.

Parameters

Type	Name	Default	Description
Medium.AbsolutePressure	p0	101325	Nominal pressure
Medium.Temperature	T	300	Nominal temperature
Medium.MassFraction[Medium.nX]	Xnom	Medium.reference_X	Nominal gas composition
Medium.MassFlowRate	w0	0	Nominal mass flowrate
Units.HydraulicConductance	G	0	HydraulicConductance
Boolean	allowFlowReversal	system.allowFlowReversal	= true to allow flow reversal, false restricts to design direction

Connectors

Type	Name	Default	Description
FlangeB	flange
Modelica.Blocks.Interfaces.RealInput	in_w0
Modelica.Blocks.Interfaces.RealInput	in_T
Modelica.Blocks.Interfaces.RealInput[Medium.nX]	in_X

Components

Type	Name	Description
Medium.BaseProperties	gas
ThermoPower.System	system	System wide properties
Medium.MassFlowRate	w

Name	Description
Medium

Revisions

19 Nov 2004 by Francesco Casella:
Removed w0fix and Tfix and Xfix; the connection of external signals is now detected automatically.

1 Oct 2003 by Francesco Casella:
First release.