Buildings.HeatTransfer.Data.Resistances

Information

Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).

Package Content

Name	Description
Generic	Thermal properties of heat resistances
Carpet	Carpet

Buildings.HeatTransfer.Data.Resistances.Generic

Information

Extends from Buildings.HeatTransfer.Data.BaseClasses.Material (Thermal properties of materials w/o storage).

Parameters

Type	Name	Default	Description
Length	x	0	Material thickness [m]
ThermalConductivity	k	0	Thermal conductivity [W/(m.K)]
SpecificHeatCapacity	c	0	Specific heat capacity [J/(kg.K)]
Density	d	0	Mass density [kg/m3]
Real	R		Thermal resistance of a unit area of material [m2.K/W]
Integer	nStaRef	0	Number of state variables in a reference material of 0.2 m concrete
Boolean	steadyState	true	Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature	TSol	293.15	Solidus temperature, used only for PCM. [K]
Temperature	TLiq	293.15	Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy	LHea	0	Latent heat of phase change [J/kg]
Advanced
Integer	nSta	1	Actual number of state variables in material
Real	piRef	331.4	Ratio x/sqrt(alpha) for reference material of 0.2 m concrete
Real	piMat	if steadyState then piRef el...	Ratio x/sqrt(alpha)
Real	nStaReal	nStaRef*piMat/piRef	Number of states as a real number

Modelica definition

record Generic "Thermal properties of heat resistances"
    extends Buildings.HeatTransfer.Data.BaseClasses.Material(
    final c=0,
    final d=0,
    final k=0,
    final x=0,
    final nStaRef=0,
    final nSta=1,
    final steadyState=true,
    final TSol=293.15,
    final TLiq=293.15,
    final LHea=0,
    final phasechange=false);

end Generic;

Buildings.HeatTransfer.Data.Resistances.Carpet

Parameters

Type	Name	Default	Description
Real	R	0.2165	Thermal resistance of a unit area of material [m2.K/W]
Advanced
Real	piRef	331.4	Ratio x/sqrt(alpha) for reference material of 0.2 m concrete
Real	piMat	if steadyState then piRef el...	Ratio x/sqrt(alpha)
Real	nStaReal	nStaRef*piMat/piRef	Number of states as a real number

Modelica definition

record Carpet = Buildings.HeatTransfer.Data.Resistances.Generic (R=0.2165) "Carpet";