modelBoundary

Boundary model for finite volume (FV) air element

Information

This is a model of an boundary (solid surface or opening) of a discretized air volume model.

Parameters

Type	Name	Default	Description
Modelica.Units.SI.Density	rhoAir	1.2	Constant Air density at the boundary
Modelica.Units.SI.SpecificHeatCapacity	cp	1005.00
Modelica.Units.SI.MassFraction	x_constant	0.005	Air moisture
Modelica.Units.SI.Velocity	vAir_constant	0.0	Air velocity
Modelica.Units.NonSI.Angle_deg	angleDegAir_constant	0.0	Direction of the air flow
Modelica.Units.SI.ThermalConductivity	lambdaAir	0.0262	Heat conductivity of air
General › Geometry
BuildingSystems.Buildings.Types.OrientationType	location	BuildingSystems.Buildings.Types.OrientationType.West	Orientation of the boundary: south, north, west, east, floor, roof
Modelica.Units.SI.Length	posX		Boundary-FV-connection absolut central position X
Modelica.Units.SI.Length	posY		Boundary-FV-connection absolut central position Y
Modelica.Units.SI.Length	posZ		Boundary-FV-connection absolut central position Z
General › Opening
Boolean	opening	false	Flag for opening: true -> opening and false ->solid surface
Real	CD	0.5	Discharge coefficent

Components

Type	Name	Default	Description
BuildingSystems.Buildings.Airvolumes.Interfaces.FluidFluid	PortF		Fluid port to the finite volume air element
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a	PortHeat		Heat port to the finite volume air element (heat conduction within the air and heat transfer to the boundary)
BuildingSystems.Buildings.Interfaces.SurfaceToAirPort	surfaceToAirPort		Interface port to the surface model
BuildingSystems.Airflow.Multizone.Orifice	ori		Flow resistant of the opening
Modelica.Fluid.Interfaces.FluidPort_a	port_a
BuildingSystems.Fluid.Sources.Boundary_pT	bou
Modelica.Blocks.Sources.RealExpression	pAir
Modelica.Blocks.Sources.RealExpression	TAir
Modelica.Blocks.Sources.RealExpression	xAir
BuildingSystems.Fluid.Sensors.TemperatureTwoPort	senTem

Contents

Name	Description
Medium

Revisions