modelSinkPressure

Pressure sink for gas flows

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 R is set to zero, the pressure sink is ideal; otherwise, the inlet pressure increases proportionally to the outgoing flowrate.

If the in_p connector is wired, then the source pressure is given by the corresponding signal, otherwise it is fixed to p0.

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
Units.HydraulicResistance	R	0	Hydraulic Resistance
Boolean	allowFlowReversal	system.allowFlowReversal	= true to allow flow reversal, false restricts to design direction
External inputs
Boolean	use_in_p0	false	Use connector input for the pressure
Boolean	use_in_T	false	Use connector input for the temperature
Boolean	use_in_X	false	Use connector input for the composition

Connectors

Type	Name	Default	Description
FlangeA	flange
Modelica.Blocks.Interfaces.RealInput	in_p0
Modelica.Blocks.Interfaces.RealInput	in_T
Modelica.Blocks.Interfaces.RealInput[Medium.nX]	in_X

Components

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

Name	Description
Medium

Revisions

19 Nov 2004 by Francesco Casella:
Removed p0fix and Tfix and Xfix; the connection of external signals is now detected automatically.

1 Oct 2003 by Francesco Casella:
First release.