modelPartialTwoPortTransport

Base class for components with two fluid ports

Information

This base class describes the geometry and most important variables for the fluid flow without storing substance.
In the derived class, the following quantities/equations have to be set:

pressure loss dp (e.g. momentum balance)
mass flow rate (e.g. mass balance)
outflow enthalpies (e.g. energy balance)

Author:	Haiko Steuer	SCD
Checked by:
Protection class:	public

License, Copyright and Disclaimer

Licensed by Siemens AG under the Siemens Modelica License 2

Copyright 2007-2012 Siemens AG. All rights reserved.

This Modelica package is free software and the use is completely at your own risk; it can be redistributed and/or modified under the terms of the Siemens Modelica License 2. For license conditions (including the disclaimer of warranty) see Siemens Modelica License 2 .

Parameters

Type	Name	Default	Description
Initialization
Modelica.SIunits.MassFlowRate	m_flow_start	1	Guess value for mass flow rate
Medium.AbsolutePressure	pIn_start	Medium.reference_p	Start value of inlet pressure
Medium.AbsolutePressure	pOut_start	Medium.reference_p	Start value of outlet pressure
Boolean	useTemperatureStartValue	false	Use T_start if true, otherwise h_start
Medium.SpecificEnthalpy	hIn_start	if useTemperatureStartValue then Medium.specificEnthalpy_pTX(pIn_start, TIn_start, XIn_start) else Medium.h_default	Start value of specific enthalpy
Medium.SpecificEnthalpy	hOut_start	if useTemperatureStartValue then Medium.specificEnthalpy_pTX(pOut_start, TOut_start, XOut_start) else Medium.h_default	Start value of specific outlet enthalpy
Medium.Temperature	TIn_start	if useTemperatureStartValue then Medium.reference_T else Medium.temperature_phX(pIn_start, hIn_start, XIn_start)	Start value of temperature
Medium.Temperature	TOut_start	if useTemperatureStartValue then Medium.reference_T else Medium.temperature_phX(pOut_start, hOut_start, XOut_start)	Start value of outlet temperature
Medium.MassFraction[Medium.nX]	XIn_start	Medium.reference_X	Start value of mass fractions m_i/m
Medium.MassFraction[Medium.nX]	XOut_start	Medium.reference_X	Start value of mass fractions m_i/m

Connectors

Type	Name	Default	Description
Modelica.Fluid.Interfaces.FluidPort_a	portIn		Inlet port
Modelica.Fluid.Interfaces.FluidPort_b	portOut		Outlet port

Components

Type	Name	Description
Medium.SpecificEnthalpy	hIn	actual state at portIn
Medium.SpecificEnthalpy	hOut	actual state at portOut
SI.Pressure	dp

Name	Description
Medium

Revisions

Feb 2009, added by Haiko Steuer