modelWallThermalTriangularGeneral
General thermal wall model
Extends from BuildingSystems.Buildings.BaseClasses.WallTriangularGeneral (General wall model).
Information
This is partial model description of a 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].lambda 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 TriangularConstructionGeneral) | BuildingSystems.Buildings.Types.GeometryType.Fixed | Fixed (default) or flexible geometry |
| Modelica.Units.SI.Length[3] | position (from TriangularConstructionGeneral) | {0.0, 0.0, 0.0} | Position (if geometryType == Fixed and coordinateType == Local) |
| Geometry › Coordinates | |||
| BuildingSystems.Buildings.Types.CoordinateType | coordinateType (from TriangularConstructionGeneral) | BuildingSystems.Buildings.Types.CoordinateType.Local | Local (default) or global |
| Modelica.Units.SI.Length[3,2] | verticesLocal (from TriangularConstructionGeneral) | {{0.0, 0.0}, {0.0, 1.0}, {0.5, 1.0}} | Local 2D vertices (if geometryType == Fixed and coordinateType == Local) |
| Modelica.Units.SI.Length[3,3] | verticesGlobal (from TriangularConstructionGeneral) | {{0.0, 0.0, 0.0}, {0.0, 1.0, 0.0}, {0.5, 1.0, 0.0}} | Global 3D vertices (if geometryType == Fixed and coordinateType == Global) |
| Geometry › Orientation | |||
| Modelica.Units.NonSI.Angle_deg | angleDegAzi (from TriangularConstructionGeneral) | 0.0 | Azimuth angle (if geometryType == Fixed and coordinateType = Local) -> south: 0 deg, east: -90 deg, west +90 deg, north: 180 deg |
| Modelica.Units.NonSI.Angle_deg | angleDegTil (from TriangularConstructionGeneral) | 90.0 | Tilt angle (if geometryType == Fixed and coordinateType = Local) -> bottom: 0 deg, perpendicular: 90 deg, ceiling: 180 deg |
| General › Surfaces | |||
| BuildingSystems.Types.Absorptance | abs_1 (from TriangularConstructionGeneral) | 0.5 | Short-wave absorptance side 1 |
| BuildingSystems.Types.Absorptance | abs_2 (from TriangularConstructionGeneral) | 0.5 | Short-wave absorptance side 2 |
| Modelica.Units.SI.Emissivity | epsilon_1 (from TriangularConstructionGeneral) | 0.9 | Long-wave emittance side 1 |
| Modelica.Units.SI.Emissivity | epsilon_2 (from TriangularConstructionGeneral) | 0.9 | Long-wave emittance side 2 |
| Advanced › Heat sources | |||
| Boolean | heatSource (from WallTriangularGeneral) | false | True: heat source present in specified layer; false: no heat source present in specified layer |
| Integer | layerWithHeatSource (from WallTriangularGeneral) | 1 | Wall layer with internal heat source (used if heatSource = true) |
| General › Construction | |||
| BuildingSystems.Buildings.Data.Constructions.OpaqueThermalConstruction | constructionData | Data of the thermal construction | |
| Initialization | |||
| Modelica.Units.SI.Temperature[constructionData.nLayers] | T_start | {293.15 for i in 1:constructionData.nLayers} | Start temperature of each layer |
Connectors
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Area | ASur (from TriangularConstructionGeneral) | Surface area | |
| BuildingSystems.Climate.Sources.RadiationFixed | radBcPort1 (from WallTriangularGeneral) | Interface to short-wave radiation on side 1 | |
| BuildingSystems.Climate.Sources.RadiationFixed | radBcPort2 (from WallTriangularGeneral) | Interface to short-wave radiation on side 2 | |
| BuildingSystems.HAM.HeatAndMoistureTransport.Sources.FixedMoistureFlow | moistBcPort1 | Moisture port on side 1 | |
| BuildingSystems.HAM.HeatAndMoistureTransport.Sources.FixedMoistureFlow | moistBcPort2 | Moisture port on side 2 |
Revisions
-
May 23, 2015 by Christoph Nytsch-Geusen:
First implementation.