modelWallHygroThermal1DNodes

Hygro-thermal wall model with 1D discritisation of the single layers
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Extends from BuildingSystems.Buildings.BaseClasses.WallHygroThermalGeneral (General hygro-hermal wall model).

Information

This is a hygro-thermal wall model with 1D discritisation of the single layers.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.SurfaceCoefficientOfHeatTransferalphaIns (from WallHygroThermalGeneral)7.692Heat transfer coefficient (convection + radiation) inside of the wall
Modelica.Units.SI.SurfaceCoefficientOfHeatTransferalphaAmb (from WallHygroThermalGeneral)25.0Heat transfer coefficient (convection + radiation) outside of the wall
Modelica.Units.SI.CoefficientOfHeatTransferUVal (from WallHygroThermalGeneral)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.GeometryTypegeometryType (from ConstructionGeneral)BuildingSystems.Buildings.Types.GeometryType.FixedFixed (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.Lengthwidth (from ConstructionGeneral)1.0Width (if geometryType == Fixed)
Modelica.Units.SI.Lengthheight (from ConstructionGeneral)1.0Height (if geometryType == Fixed)
Geometry › Orientation
Modelica.Units.NonSI.Angle_degangleDegAzi (from ConstructionGeneral)0.0Azimuth angle (if geometryType == Fixed) -> south: 0 deg, east: -90 deg, west +90 deg, north: 180 deg
Modelica.Units.NonSI.Angle_degangleDegTil (from ConstructionGeneral)90.0Tilt angle (if geometryType == Fixed) -> bottom: 0 deg, perpendicular: 90 deg, ceiling: 180 deg
General › Surfaces
BuildingSystems.Types.Absorptanceabs_1 (from ConstructionGeneral)0.5Short-wave absorptance side 1
BuildingSystems.Types.Absorptanceabs_2 (from ConstructionGeneral)0.5Short-wave absorptance side 2
Modelica.Units.SI.Emissivityepsilon_1 (from ConstructionGeneral)0.9Long-wave emittance side 1
Modelica.Units.SI.Emissivityepsilon_2 (from ConstructionGeneral)0.9Long-wave emittance side 2
Advanced › Heat sources
BooleanheatSource (from WallGeneral)falseTrue: heat source present in specified layer; false: no heat source present in specified layer
IntegerlayerWithHeatSource (from WallGeneral)1Wall layer with internal heat source (used if heatSource = true)
Integer[constructionData.nLayers]nNodesfill(1, constructionData.nLayers)Number of numerical nodes of each layer
IntegernodeWithHeatSource1Numerical node of the specified layer with internal heat source
Initialization
Modelica.Units.SI.Temperature[constructionData.nLayers]T_start (from WallHygroThermalGeneral){293.15 for i in 1:constructionData.nLayers}Start temperature of each layer
BuildingSystems.Types.RelativeHumidity[constructionData.nLayers]phi_start (from WallHygroThermalGeneral){0.5 for i in 1:constructionData.nLayers}Start relative humidity of each layer
General › Construction
BuildingSystems.Buildings.Data.Constructions.OpaqueHygroThermalConstructionconstructionData (from WallHygroThermalGeneral)Data of the hygro-thermal construction
Advanced › Surface variables
Booleanshow_TSurfalseShow surface temperatures on both sides
Booleanshow_xSurfalseShow surface moisture on both sides
General › Geometry
Modelica.Units.SI.AreaAInnSur0.0Area of all enclosed surfaces (if geometryType == Fixed)

Connectors

TypeNameDefaultDescription
BuildingSystems.Buildings.Interfaces.SurfaceToConstructionPorttoSurfacePort_1 (from ConstructionGeneral)
BuildingSystems.Buildings.Interfaces.SurfaceToConstructionPorttoSurfacePort_2 (from ConstructionGeneral)Interface to surface on side 2
BuildingSystems.Interfaces.LengthOutputwidth_internal (from ConstructionGeneral)Width
BuildingSystems.Interfaces.LengthInputwidth_in (from ConstructionGeneral)Width from input
BuildingSystems.Interfaces.LengthOutputheight_internal (from ConstructionGeneral)Height
BuildingSystems.Interfaces.LengthInputheight_in (from ConstructionGeneral)Height from input
BuildingSystems.Interfaces.Angle_degOutputangleDegAzi_internal (from ConstructionGeneral)Azimuth angle
BuildingSystems.Interfaces.Angle_degInputangleDegAzi_in (from ConstructionGeneral)Azimuth angle from input
BuildingSystems.Interfaces.Angle_degOutputangleDegTil_internal (from ConstructionGeneral)Tilt angle
BuildingSystems.Interfaces.Angle_degInputangleDegTil_in (from ConstructionGeneral)Tilt angle from input
BuildingSystems.Interfaces.LengthOutput[3]position_internal (from ConstructionGeneral)Position
BuildingSystems.Interfaces.LengthInput[3]position_in (from ConstructionGeneral)Position from input
BuildingSystems.Interfaces.HeatPortheatPort_source
BuildingSystems.Interfaces.Temp_KOutputTSur_1toSurfacePort_1.heatPort.TTemperature on surface side 1
BuildingSystems.Interfaces.Temp_KOutputTSur_2toSurfacePort_2.heatPort.TTemperature on surface side 2
BuildingSystems.Interfaces.Moisture_absOutputxSur_1toSurfacePort_1.moisturePort.xAbsolute moisture on surface side 1
BuildingSystems.Interfaces.Moisture_absOutputxSur_2toSurfacePort_2.moisturePort.xAbsolute moisture on surface side 2
BuildingSystems.Interfaces.AreaOutputAInnSur_internalArea of all enclosed surfaces
BuildingSystems.Interfaces.AreaInputAInnSur_inArea of all enclosed surfaces from input

Components

TypeNameDefaultDescription
Modelica.Units.SI.AreaASur (from ConstructionGeneral)Surface area
BuildingSystems.Climate.Sources.RadiationFixedradBcPort1 (from WallGeneral)Interface to short-wave radiation on side 1
BuildingSystems.Climate.Sources.RadiationFixedradBcPort2 (from WallGeneral)Interface to short-wave radiation on side 2
BuildingSystems.HAM.HeatAndMoistureTransport.MultiLayerHeatAndMoistureTransfer1DNodesconstruction

Revisions

  • April 24, 2019 by Christoph Nytsch-Geusen:
    Adaptation to flexible geometries.
  • May 23, 2015 by Christoph Nytsch-Geusen:
    First implementation.