recordGeneric
Thermal properties of heat resistances
Extends from Buildings.HeatTransfer.Data.BaseClasses.Material (Thermal properties of materials w/o storage).
Information
Generic record for thermal properties of heat resistances.Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | x (from Material) | Material thickness | |
| Modelica.Units.SI.ThermalConductivity | k (from Material) | Thermal conductivity | |
| Modelica.Units.SI.SpecificHeatCapacity | c (from Material) | Specific heat capacity | |
| Modelica.Units.SI.Density | d (from Material) | Mass density | |
| Real | R (from Material) | Thermal resistance of a unit area of material | |
| Integer | nStaRef (from Material) | 3 | Number of state variables in a reference material of 0.2 m concrete |
| Boolean | steadyState (from Material) | (c < Modelica.Constants.eps or d < Modelica.Constants.eps) | Flag, if true, then material is computed using steady-state heat conduction |
| Boolean | ensureMonotonicity (from Material) | false | Set to true to force derivatives dT/du to be monotone |
| Advanced | |||
| Integer | nSta (from Material) | max(1, integer(ceil(nStaReal))) | Actual number of state variables in material |
| Real | piRef (from Material) | 331.4 | Ratio x/sqrt(alpha) for reference material of 0.2 m concrete |
| Real | piMat (from Material) | if steadyState then piRef else x*sqrt(c*d/k) | Ratio x/sqrt(alpha) |
| Real | nStaReal (from Material) | nStaRef*piMat/piRef | Number of states as a real number |
| Properties for phase change material | |||
| Modelica.Units.SI.Temperature | TSol (from Material) | Solidus temperature, used only for PCM. | |
| Modelica.Units.SI.Temperature | TLiq (from Material) | Liquidus temperature, used only for PCM | |
| Modelica.Units.SI.SpecificInternalEnergy | LHea (from Material) | Latent heat of phase change | |
| Boolean | phasechange (from Material) | false | Flag, true if the material is a phase change material |
Revisions
-
Sep. 3 2010, by Michael Wetter, Wangda Zuo:
First implementation.