Modelica.Thermal.FluidHeatFlow.Media

Information

Main Authors:

Anton Haumer
Technical Consulting & Electrical Engineering
A-3423 St.Andrae-Woerdern, Austria
email: a.haumer@haumer.at

Dr.Christian Kral
Österreichisches Forschungs- und Prüfzentrum Arsenal Ges.m.b.H.
arsenal research
Giefinggasse 2
A-1210 Vienna, Austria

Copyright © 1998-2009, Modelica Association, Anton Haumer and arsenal research.

The Modelica package is free software; it can be redistributed and/or modified under the terms of the Modelica license, see the license conditions and the accompanying disclaimer here.

Extends from Modelica.Icons.Library2 (Icon for library where additional icon elements shall be added).

Package Content

Name	Description
Medium	Record containing media properties
Air_30degC	Medium: properties of air at 30 degC
Air_70degC	Medium: properties of air at 70 degC
Water	Medium: properties of water

Modelica.Thermal.FluidHeatFlow.Media.Medium

Information

Extends from Modelica.Icons.Record (Icon for a record).

Parameters

Type	Name	Default	Description
Density	rho	1	Density [kg/m3]
SpecificHeatCapacity	cp	1	Specific heat capacity at constant pressure [J/(kg.K)]
SpecificHeatCapacity	cv	1	Specific heat capacity at constant volume [J/(kg.K)]
ThermalConductivity	lamda	1	Thermal conductivity [W/(m.K)]
KinematicViscosity	nue	1	kinematic viscosity [m2/s]

Modelica definition

record Medium "Record containing media properties"
  extends Modelica.Icons.Record;
  parameter Modelica.SIunits.Density rho = 1 "Density";
  parameter Modelica.SIunits.SpecificHeatCapacity cp = 1 
    "Specific heat capacity at constant pressure";
  parameter Modelica.SIunits.SpecificHeatCapacity cv = 1 
    "Specific heat capacity at constant volume";
  parameter Modelica.SIunits.ThermalConductivity lamda = 1 
    "Thermal conductivity";
  parameter Modelica.SIunits.KinematicViscosity nue = 1 "kinematic viscosity";
end Medium;

Modelica.Thermal.FluidHeatFlow.Media.Air_30degC

Information

Extends from Medium (Record containing media properties).

Parameters

Type	Name	Default	Description
Density	rho	1.149	Density [kg/m3]
SpecificHeatCapacity	cp	1007	Specific heat capacity at constant pressure [J/(kg.K)]
SpecificHeatCapacity	cv	720	Specific heat capacity at constant volume [J/(kg.K)]
ThermalConductivity	lamda	0.0264	Thermal conductivity [W/(m.K)]
KinematicViscosity	nue	16.3E-6	kinematic viscosity [m2/s]

Modelica definition

record Air_30degC "Medium: properties of air at 30 degC"
extends Medium(
  rho=1.149,
  cp=1007,
  cv= 720,
  lamda=0.0264,
  nue=16.3E-6);
end Air_30degC;

Modelica.Thermal.FluidHeatFlow.Media.Air_70degC

Information

Extends from Medium (Record containing media properties).

Parameters

Type	Name	Default	Description
Density	rho	1.015	Density [kg/m3]
SpecificHeatCapacity	cp	1010	Specific heat capacity at constant pressure [J/(kg.K)]
SpecificHeatCapacity	cv	723	Specific heat capacity at constant volume [J/(kg.K)]
ThermalConductivity	lamda	0.0293	Thermal conductivity [W/(m.K)]
KinematicViscosity	nue	20.3E-6	kinematic viscosity [m2/s]

Modelica definition

record Air_70degC "Medium: properties of air at 70 degC"
extends Medium(
  rho=1.015,
  cp=1010,
  cv= 723,
  lamda=0.0293,
  nue=20.3E-6);
end Air_70degC;

Modelica.Thermal.FluidHeatFlow.Media.Water

Information

Extends from Medium (Record containing media properties).

Parameters

Type	Name	Default	Description
Density	rho	995.6	Density [kg/m3]
SpecificHeatCapacity	cp	4177	Specific heat capacity at constant pressure [J/(kg.K)]
SpecificHeatCapacity	cv	4177	Specific heat capacity at constant volume [J/(kg.K)]
ThermalConductivity	lamda	0.615	Thermal conductivity [W/(m.K)]
KinematicViscosity	nue	0.8E-6	kinematic viscosity [m2/s]

Modelica definition

record Water "Medium: properties of water"
extends Medium(
  rho=995.6,
  cp=4177,
  cv=4177,
  lamda=0.615,
  nue=0.8E-6);
end Water;