modelZoneTemplateAirvolume3D

Template model for a thermal zone with 3D discretized air volume

Extends from BuildingSystems.Buildings.BaseClasses.ZoneTemplateGeneral (Template model of a thermal zone).

Information

This is a template model for a thermal zone with 3D discretized air volume.

Parameters

Type	Name	Default	Description
Geometry › Zone geometry
BuildingSystems.Buildings.Types.GeometryType	geometryType (from ZoneTemplateGeneral)	BuildingSystems.Buildings.Types.GeometryType.Fixed	Fixed (default) or flexible geometry
Modelica.Units.SI.Volume	V (from ZoneTemplateGeneral)	1.0	Air volume of the zone (if geometryType == Fixed)
Modelica.Units.SI.Length[3]	position (from ZoneTemplateGeneral)	{0.0, 0.0, 0.0}	Position (if geometryType == Fixed)
General › Air change
Modelica.Units.SI.Length	height (from ZoneTemplateGeneral)	1.0	Vertical height of the zone
Boolean	prescribedAirchange (from ZoneTemplateGeneral)	true	True: zone air change rate is prescribed by zone ambience; false: air path calculation
Advanced › Convection model on building facades
BuildingSystems.HAM.ConvectiveHeatTransfer.Types.Convection	convectionOnSurfaces (from ZoneTemplateGeneral)	BuildingSystems.HAM.ConvectiveHeatTransfer.Types.Convection.const	Type of convection calculation of the zone surfaces
Modelica.Units.SI.SurfaceCoefficientOfHeatTransfer	alphaConstant (from ZoneTemplateGeneral)	1.0	Convective heat transfer coefficient for simplified calculations
General › Ports
Integer	nMoistureSources (from ZoneTemplateGeneral)	0	Number of internal moisture sources of the thermal zone
Integer	nConstructions (from ZoneTemplateGeneral)	0	Number of constructions
Integer	nAirpaths (from ZoneTemplateGeneral)	0	Number of external air paths
Geometry › View Factors
BuildingSystems.Buildings.Types.ViewFactorCalculationType	viewFacCalcType (from ZoneTemplateGeneral)	BuildingSystems.Buildings.Types.ViewFactorCalculationType.AreaWeighted	Surface area weighted (default), geometric view factors or external calculated view factors
BuildingSystems.Types.ViewFactor[nSurfaces,nSurfaces]	ViewFac (from ZoneTemplateGeneral)	fill(fill(0.0, nSurfaces), nSurfaces)	Geometric view factor matrix of the thermal zone
General
Integer	nAirElements	1	Number of air elements, which are included in the air volume
Initialization
Modelica.Units.SI.Temperature	T_start	293.15	Start air temperature of the zone
Modelica.Units.SI.MassFraction	x_start	0.005	Start air moisture of the zone

Connectors

Type	Name	Description
BuildingSystems.Interfaces.ViewFactorInput[nSurfaces,nSurfaces]	ViewFac_in (from ZoneTemplateGeneral)
BuildingSystems.Interfaces.VolumeInput	V_in (from ZoneTemplateGeneral)	Air volume of the zone from input
BuildingSystems.Interfaces.LengthInput[3]	position_in (from ZoneTemplateGeneral)	Position from input
BuildingSystems.Interfaces.LengthOutput[3]	position_internal (from ZoneTemplateGeneral)	Position
BuildingSystems.Buildings.Interfaces.SurfaceToConstructionPorts[nConstructions]	toConstructionPorts (from ZoneTemplateGeneral)	Interfaces of the zone to the constructions
Modelica.Fluid.Vessels.BaseClasses.VesselFluidPorts_b[nAirpaths]	airpathPorts (from ZoneTemplateGeneral)	Interfaces of the zone to the air paths
BuildingSystems.Interfaces.Temp_KOutput	TSurfMean (from ZoneTemplateGeneral)	Mean surface temperature of the zone
BuildingSystems.Interfaces.Temp_KOutput[nAirElements]	TAir	Air temperature
BuildingSystems.Interfaces.Moisture_absOutput[nAirElements]	xAir	Absolute air moisture
BuildingSystems.Interfaces.VelocityOutput[nAirElements]	vAir	Air velocity (magnitude)
BuildingSystems.Interfaces.PressureOutput[nAirElements]	pAir	Air pressure
BuildingSystems.Interfaces.Temp_KOutput	TAirMean	Mean air temperature of the zone

Components

Type	Name	Default	Description
BuildingSystems.Buildings.Airvolumes.Airvolume3DTemplate	airvolume		Discretized air volume of the zone

Revisions

February 19, 2022 by Christoph Nytsch-Geusen:
Mean air temperature output added.
October 29, 2020 by Christoph Nytsch-Geusen:
Pressure output added.
January 29, 2017 by Christoph Nytsch-Geusen:
First implementation.