modelWallHygroThermalGeneral
General hygro-hermal wall model
Extends from BuildingSystems.Buildings.BaseClasses.WallGeneral (General wall model).
Information
This is partial model description of a hygro-thermal wall.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.SurfaceCoefficientOfHeatTransfer | alphaIns | 7.692 | Heat transfer coefficient (convection + radiation) inside of the wall |
| Modelica.Units.SI.SurfaceCoefficientOfHeatTransfer | alphaAmb | 25.0 | Heat transfer coefficient (convection + radiation) outside of the wall |
| Modelica.Units.SI.CoefficientOfHeatTransfer | UVal | 1.0/(1.0/alphaIns + sum(constructionData.thickness[i]/constructionData.material[i].lambdaDry for i in 1:constructionData.nLayers) + 1.0/alphaAmb) | U-value of the wall construction under standard conditions |
| Geometry › General | |||
| BuildingSystems.Buildings.Types.GeometryType | geometryType (from ConstructionGeneral) | BuildingSystems.Buildings.Types.GeometryType.Fixed | Fixed (default) or flexible geometry |
| Modelica.Units.SI.Length[3] | position (from ConstructionGeneral) | {0.0, 0.0, 0.0} | Position (if geometryType == Fixed) |
| Geometry › Dimension | |||
| Modelica.Units.SI.Length | width (from ConstructionGeneral) | 1.0 | Width (if geometryType == Fixed) |
| Modelica.Units.SI.Length | height (from ConstructionGeneral) | 1.0 | Height (if geometryType == Fixed) |
| Geometry › Orientation | |||
| Modelica.Units.NonSI.Angle_deg | angleDegAzi (from ConstructionGeneral) | 0.0 | Azimuth angle (if geometryType == Fixed) -> south: 0 deg, east: -90 deg, west +90 deg, north: 180 deg |
| Modelica.Units.NonSI.Angle_deg | angleDegTil (from ConstructionGeneral) | 90.0 | Tilt angle (if geometryType == Fixed) -> bottom: 0 deg, perpendicular: 90 deg, ceiling: 180 deg |
| General › Surfaces | |||
| BuildingSystems.Types.Absorptance | abs_1 (from ConstructionGeneral) | 0.5 | Short-wave absorptance side 1 |
| BuildingSystems.Types.Absorptance | abs_2 (from ConstructionGeneral) | 0.5 | Short-wave absorptance side 2 |
| Modelica.Units.SI.Emissivity | epsilon_1 (from ConstructionGeneral) | 0.9 | Long-wave emittance side 1 |
| Modelica.Units.SI.Emissivity | epsilon_2 (from ConstructionGeneral) | 0.9 | Long-wave emittance side 2 |
| Advanced › Heat sources | |||
| Boolean | heatSource (from WallGeneral) | false | True: heat source present in specified layer; false: no heat source present in specified layer |
| Integer | layerWithHeatSource (from WallGeneral) | 1 | Wall layer with internal heat source (used if heatSource = true) |
| Initialization | |||
| Modelica.Units.SI.Temperature[constructionData.nLayers] | T_start | {293.15 for i in 1:constructionData.nLayers} | Start temperature of each layer |
| BuildingSystems.Types.RelativeHumidity[constructionData.nLayers] | phi_start | {0.5 for i in 1:constructionData.nLayers} | Start relative humidity of each layer |
| General › Construction | |||
| BuildingSystems.Buildings.Data.Constructions.OpaqueHygroThermalConstruction | constructionData | Data of the hygro-thermal construction | |
Connectors
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Area | ASur (from ConstructionGeneral) | Surface area | |
| BuildingSystems.Climate.Sources.RadiationFixed | radBcPort1 (from WallGeneral) | Interface to short-wave radiation on side 1 | |
| BuildingSystems.Climate.Sources.RadiationFixed | radBcPort2 (from WallGeneral) | Interface to short-wave radiation on side 2 |
Revisions
-
May 23, 2015 by Christoph Nytsch-Geusen:
First implementation.