modelGasGapClosed
Combined convective heat transfer and long-wave radiation exchange within a closed gas gap
Parameters
| Type | Name | Default | Description |
|---|
| Boolean | calcNominal | false | True: heat transfer calculation under nominal conditions |
| Modelica.Units.SI.Temperature | T1_nominal | 283.15 - 5.0 | Temperature on surface 1 under nominal conditions |
| Modelica.Units.SI.Temperature | T2_nominal | 283.15 + 5.0 | Temperature on surface 2 under nominal conditions |
| General › Geometry |
| Modelica.Units.SI.Length | width | | Width of the gap |
| Modelica.Units.SI.Length | height | | Height of the gap |
| Modelica.Units.SI.Length | distance | | Distance of the gap |
| Modelica.Units.SI.Area | A | width*height | Area of one side of the gap |
| General › Convection |
| Integer | gas | 1 | Gas within the gap: 1:air, 2:argon, 3:krypton, 4:xenon, 5:SF6 |
| Modelica.Units.SI.SurfaceCoefficientOfHeatTransfer | alpha_nominal | 1.0 | Convective heat transfer coefficient of the air gap under nominal conditions |
| General › Heat Radiation |
| Modelica.Units.SI.Emissivity | eps1 | 0.9 | Long-wave emission coefficient of surface 1 |
| Modelica.Units.SI.Emissivity | eps2 | 0.9 | Long-wave emission coefficient of surface 2 |
Components
| Type | Name | Default | Description |
|---|
| BuildingSystems.Interfaces.HeatPort | heatPort_x1 | | |
| BuildingSystems.Interfaces.HeatPort | heatPort_x2 | | |
| Modelica.Units.SI.SurfaceCoefficientOfHeatTransfer | alpha | | Convective heat transfer coefficient of the air gap |