recordMaterial
Template record for properties of building materials
Extends from IDEAS.Buildings.Data.Interfaces.BasicMaterial (Template record for properties of building materials).
Information
This record may be used to define material properties.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.ThermalConductivity | k (from BasicMaterial) | Thermal conductivity | |
| Modelica.Units.SI.SpecificHeatCapacity | c (from BasicMaterial) | Specific thermal capacity | |
| Modelica.Units.SI.Density | rho (from BasicMaterial) | Density | |
| Modelica.Units.SI.Length | d | 0 | Layer thickness |
| Modelica.Units.SI.Emissivity | epsLw | 0.85 | Longwave emissivity |
| Modelica.Units.SI.Emissivity | epsSw | 0.85 | Shortwave emissivity |
| Boolean | gas | false | Boolean whether the material is a gas |
| Boolean | glass | false | Boolean whether the material is made of glass |
| Modelica.Units.SI.KinematicViscosity | nu | 0 | Viscosity, i.e. if the material is a fluid |
| Modelica.Units.SI.Emissivity | epsLw_a | epsLw | Longwave emissivity for surface a if different |
| Modelica.Units.SI.Emissivity | epsLw_b | epsLw | Longwave emissivity for surface b if different |
| Modelica.Units.SI.Emissivity | epsSw_a | epsSw | Shortwave emissivity for surface a if different |
| Modelica.Units.SI.Emissivity | epsSw_b | epsSw | Shortwave emissivity for surface b if different |
| Modelica.Units.SI.ThermalInsulance | R | d/k | |
| Modelica.Units.SI.ThermalDiffusivity | alpha | k/(c*rho) | Thermal diffusivity |
| Integer | nStaRef | 3 | Number of states of a reference case, i.e. 20 cm dense concrete |
| Real | piRef | 224 | d/sqrt(mat.alpha) of a reference case, i.e. 20 cm dense concrete |
| Real | piLay | d/sqrt(alpha) | d/sqrt(mat.alpha) of the depicted layer |
| Integer | nSta | max(2, integer(ceil(nStaRef*piLay/piRef))) | Actual number of state variables in material |
Revisions
-
May 3, 2022, by Jelger Jansen:
Changed symbol for kinematic viscosity to 'nu' and corrected some typos. -
November 15, 2016, by Filip Jorissen:
Revised documentation for IDEAS 1.0.