modelConstruction

Model for an opaque construction that has no window

Extends from Buildings.ThermalZones.Detailed.Constructions.BaseClasses.PartialConstruction (Partial model for exterior construction that has no window).

Information

This model is used to compute heat transfer through opaque constructions inside the room model. The model uses the record layers to access the material properties of the opaque construction. The heat transfer is computed in the instance opa, which uses the model Buildings.HeatTransfer.Conduction.MultiLayer.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.AreaA (from PartialConstruction)Heat transfer area
Modelica.Units.SI.Angletil (from PartialConstruction)Surface tilt
Booleanis_floor (from PartialConstruction)til > 2.74889125 and til < 3.53428875Flag, true if construction is a floor
Booleanis_ceiling (from PartialConstruction)til > -0.392699 and til < 0.392699Flag, true if construction is a floor
IntegernLay (from PartialConstruction)size(layers.material, 1)Number of layers
Integer[nLay]nSta (from PartialConstruction){layers.material[i].nSta for i in 1:nLay}Number of states
Opaque construction
Modelica.Units.SI.AreaAOpa (from PartialConstruction)Heat transfer area of opaque construction
Buildings.HeatTransfer.Data.OpaqueConstructions.Genericlayers (from PartialConstruction)Material properties of opaque construction
Initialization
BooleansteadyStateInitial (from PartialConstruction)false=true initializes dT(0)/dt=0, false initializes T(0) at fixed temperature using T_a_start and T_b_start
Modelica.Units.SI.TemperatureT_a_start (from PartialConstruction)293.15Initial temperature at port_a, used if steadyStateInitial = false
Modelica.Units.SI.TemperatureT_b_start (from PartialConstruction)293.15Initial temperature at port_b, used if steadyStateInitial = false
Dynamics
BooleanstateAtSurface_a (from PartialConstruction)true=true, a state will be at the surface a
BooleanstateAtSurface_b (from PartialConstruction)true=true, a state will be at the surface b

Connectors

TypeNameDefaultDescription
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_aopa_a (from PartialConstruction)Heat port at surface a of opaque construction
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_bopa_b (from PartialConstruction)Heat port at surface b of opaque construction

Components

TypeNameDefaultDescription
HeatTransfer.Conduction.MultiLayeropa (from PartialConstruction)Model for heat transfer through opaque construction

Revisions

  • December 6 2010, by Michael Wetter:
    First implementation.