modelWall

Cylindrical metal tube with variable number of wall layers Nwall

Information

This model is based on the Walllayer model which represents a cylindrical metal tube wall with a single layer. The parameter numberOfWallLayers says how many layers will be accounted for in that wall. The counting of layers begins at the inner side, i.e. layer[numberOfNodes] is the outside layer.

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

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
Integer	numberOfNodes	2	Number of nodes
Integer	numberOfWallLayers	3	Number of wall layers
Integer	numberOfParallelTubes	1	Number of parallel tubes
SI.Length	length	1	Tube length
SI.Length	diameterInner	0.08	Internal diameter (single tube)
SI.Length	wallThickness	0.008	Wall thickness
SI.Temperature[numberOfNodes]	T_start	fill(300, numberOfNodes)	Temperature start values for inner layer
Material
SiemensPower.Utilities.Structures.PropertiesMetal	metal		Wall metal properties

Connectors

Type	Name	Default	Description
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a	port_ext		Outer heat port
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b	port_int		Inner heat port

Components

Type	Name	Default	Description
SiemensPower.Components.SolidComponents.Walllayer[numberOfWallLayers]	layer

Revisions

December 2006 by Haiko Steuer