Description: "Package with solid material, characterized by thermal conductance, density and specific heat capacity"

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## Buildings.HeatTransfer.Data.SolidsPCM

Package with solid material, characterized by thermal conductance, density and specific heat capacity

### Information

Package with records for solid materials with embedded phase change material. The material is characterized by its thermal conductivity, mass density and specific heat capacity, as well as the solidus and liquidus temperatures, and the latent heat.

For a description of the parameter `nStaRef`, which is used to generate the spatial grid, see the documentation of the package Buildings.HeatTransfer.Data.Solids.

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

### Package Content

Name | Description
--- | ---
Generic | Thermal properties of solids with heat storage
PCM020 | Wallboard with 20% of microencapsulated paraffin
PCM030 | Wallboard with 30% of microencapsulated paraffin
MicronalSmartBoard23 | Micronal PCM SmartBoard 23
MicronalSmartBoard26 | Micronal PCM SmartBoard 26

## Buildings.HeatTransfer.Data.SolidsPCM.Generic

Thermal properties of solids with heat storage

### Information

Generic record for phase change materials. The record extends from Buildings.HeatTransfer.Data.BaseClasses.Material and declares parameters and constants for phase change materials.

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

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
Length | x |  | Material thickness [m]
ThermalConductivity | k |  | Thermal conductivity [W/(m.K)]
SpecificHeatCapacity | c |  | Specific heat capacity [J/(kg.K)]
Density | d |  | Mass density [kg/m3]
Real | R | x/k | Thermal resistance of a unit area of material [m2.K/W]
Integer | nStaRef | 3 | Number of state variables in a reference material of 0.2 m concrete
Boolean | steadyState | (c == 0 or d == 0) | Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature | TSol |  | Solidus temperature, used only for PCM. [K]
Temperature | TLiq |  | Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy | LHea |  | Latent heat of phase change [J/kg]
Advanced
Integer | nSta | max(1, integer(ceil(nStaReal... | 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 solids with heat storage" extends Buildings.HeatTransfer.Data.BaseClasses.Material(final R=x/k, final phasechange=true); end Generic;

## Buildings.HeatTransfer.Data.SolidsPCM.PCM020

Wallboard with 20% of microencapsulated paraffin

### Information

This material record is for PCM treated wallboard. The data source is Feustel (1995).

#### References

Feustel, Helmut E. Simplified numerical description of latent storage characteristics for phase change wallboard. LBNL-Technical Report 36933. 1995. DOI: 10.2172/70723.

Extends from Buildings.HeatTransfer.Data.SolidsPCM.Generic (Thermal properties of solids with heat storage).

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
Length | x |  | Material thickness [m]
ThermalConductivity | k | 0.204 | Thermal conductivity [W/(m.K)]
SpecificHeatCapacity | c | 1341 | Specific heat capacity [J/(kg.K)]
Density | d | 800 | Mass density [kg/m3]
Integer | nStaRef | 3 | Number of state variables in a reference material of 0.2 m concrete
Boolean | steadyState | (c == 0 or d == 0) | Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature | TSol | 273.15 + 23 | Solidus temperature, used only for PCM. [K]
Temperature | TLiq | 273.15 + 27 | Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy | LHea | 38900 | Latent heat of phase change [J/kg]
Advanced
Integer | nSta | max(1, integer(ceil(nStaReal... | 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 PCM020 =Buildings.HeatTransfer.Data.SolidsPCM.Generic ( k=0.204, d=800, c=1341, TSol=273.15+23, TLiq=273.15+27, LHea=38900) "Wallboard with 20% of microencapsulated paraffin";

## Buildings.HeatTransfer.Data.SolidsPCM.PCM030

Wallboard with 30% of microencapsulated paraffin

### Information

This material record is for PCM treated wallboard. The data source is Feustel (1995).

#### References

Feustel, Helmut E. Simplified numerical description of latent storage characteristics for phase change wallboard. LBNL-Technical Report 36933. 1995. DOI: 10.2172/70723.

Extends from Buildings.HeatTransfer.Data.SolidsPCM.Generic (Thermal properties of solids with heat storage).

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
Length | x |  | Material thickness [m]
ThermalConductivity | k | 0.232 | Thermal conductivity [W/(m.K)]
SpecificHeatCapacity | c | 1467 | Specific heat capacity [J/(kg.K)]
Density | d | 998 | Mass density [kg/m3]
Integer | nStaRef | 3 | Number of state variables in a reference material of 0.2 m concrete
Boolean | steadyState | (c == 0 or d == 0) | Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature | TSol | 273.15 + 24 | Solidus temperature, used only for PCM. [K]
Temperature | TLiq | 273.15 + 26 | Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy | LHea | 58300 | Latent heat of phase change [J/kg]
Advanced
Integer | nSta | max(1, integer(ceil(nStaReal... | 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 PCM030 =Buildings.HeatTransfer.Data.SolidsPCM.Generic ( k=0.232, d=998, c=1467, TSol=273.15+24, TLiq=273.15+26, LHea=58300) "Wallboard with 30% of microencapsulated paraffin";

## Buildings.HeatTransfer.Data.SolidsPCM.MicronalSmartBoard23

Micronal PCM SmartBoard 23

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
Length | x |  | Material thickness [m]
ThermalConductivity | k | 0.18 | Thermal conductivity [W/(m.K)]
SpecificHeatCapacity | c | 1200 | Specific heat capacity [J/(kg.K)]
Density | d | 767 | Mass density [kg/m3]
Integer | nStaRef | 3 | Number of state variables in a reference material of 0.2 m concrete
Boolean | steadyState | (c == 0 or d == 0) | Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature | TSol | 273.15 + 22.99 | Solidus temperature, used only for PCM. [K]
Temperature | TLiq | 273.15 + 23.01 | Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy | LHea | 28696 | Latent heat of phase change [J/kg]
Advanced
Integer | nSta | max(1, integer(ceil(nStaReal... | 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 MicronalSmartBoard23 = Buildings.HeatTransfer.Data.SolidsPCM.Generic ( k=0.18, d=767, c=1200, TSol=273.15+22.99, TLiq=273.15+23.01, LHea=28696) "Micronal PCM SmartBoard 23";

## Buildings.HeatTransfer.Data.SolidsPCM.MicronalSmartBoard26

Micronal PCM SmartBoard 26

### Parameters

Type | Name | Default | Description
--- | --- | --- | ---
Length | x |  | Material thickness [m]
ThermalConductivity | k | 0.18 | Thermal conductivity [W/(m.K)]
SpecificHeatCapacity | c | 1200 | Specific heat capacity [J/(kg.K)]
Density | d | 767 | Mass density [kg/m3]
Integer | nStaRef | 3 | Number of state variables in a reference material of 0.2 m concrete
Boolean | steadyState | (c == 0 or d == 0) | Flag, if true, then material is computed using steady-state heat conduction
Properties for phase change material
Temperature | TSol | 273.15 + 25.99 | Solidus temperature, used only for PCM. [K]
Temperature | TLiq | 273.15 + 26.01 | Liquidus temperature, used only for PCM [K]
SpecificInternalEnergy | LHea | 28696 | Latent heat of phase change [J/kg]
Advanced
Integer | nSta | max(1, integer(ceil(nStaReal... | 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 MicronalSmartBoard26 = Buildings.HeatTransfer.Data.SolidsPCM.Generic ( k=0.18, d=767, c=1200, TSol=273.15+25.99, TLiq=273.15+26.01, LHea=28696) "Micronal PCM SmartBoard 26";