Package with solid material, characterized by thermal conductance, density and specific heat capacity
Package Content
Thermal properties of solids with heat storage
Information
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 |
| 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);
end Generic;
Brick (k=0.89)
Parameters
| Type | Name | Default | Description |
| Length | x | | Material thickness [m] |
| ThermalConductivity | k | 0.89 | Thermal conductivity [W/(m.K)] |
| SpecificHeatCapacity | c | 790 | Specific heat capacity [J/(kg.K)] |
| Density | d | 1920 | 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 |
| 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 Brick = Buildings.HeatTransfer.Data.Solids.Generic (
k=0.89, d=1920, c=790) "Brick (k=0.89)";
Concrete (k=1.4)
Parameters
| Type | Name | Default | Description |
| Length | x | | Material thickness [m] |
| ThermalConductivity | k | 1.4 | Thermal conductivity [W/(m.K)] |
| SpecificHeatCapacity | c | 840 | Specific heat capacity [J/(kg.K)] |
| Density | d | 2240 | 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 |
| 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 Concrete = Buildings.HeatTransfer.Data.Solids.Generic (
k=1.4, d=2240, c=840) "Concrete (k=1.4)";
Insulation board (k=0.03)
Parameters
| Type | Name | Default | Description |
| Length | x | | Material thickness [m] |
| ThermalConductivity | k | 0.03 | Thermal conductivity [W/(m.K)] |
| SpecificHeatCapacity | c | 1200 | Specific heat capacity [J/(kg.K)] |
| Density | d | 40 | 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 |
| 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 InsulationBoard = Buildings.HeatTransfer.Data.Solids.Generic (
k=0.03, d=40, c=1200)
"Insulation board (k=0.03)";
Gypsum board (k=0.58)
Parameters
| Type | Name | Default | Description |
| Length | x | | Material thickness [m] |
| ThermalConductivity | k | 0.16 | Thermal conductivity [W/(m.K)] |
| SpecificHeatCapacity | c | 1090 | 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 |
| 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 GypsumBoard = Buildings.HeatTransfer.Data.Solids.Generic (
k=0.16, d=800, c=1090) "Gypsum board (k=0.58)";
Plywood (k=0.12)
Parameters
| Type | Name | Default | Description |
| Length | x | | Material thickness [m] |
| ThermalConductivity | k | 0.12 | Thermal conductivity [W/(m.K)] |
| SpecificHeatCapacity | c | 1210 | Specific heat capacity [J/(kg.K)] |
| Density | d | 540 | 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 |
| 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 Plywood = Buildings.HeatTransfer.Data.Solids.Generic (
k=0.12, d=540, c=1210) "Plywood (k=0.12)";
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