OMC

modelPartialShadingDevice

Diagram of PartialShadingDevice

Extends from IDEAS.Buildings.Components.Shading.Interfaces.PartialShading (Window shading partial).

Information

Shading connections and default thermal boundary conditions.

Parameters

Type	Name	Default	Description
Boolean	controlled (from PartialShading)	true	if true, shading has a control input
Modelica.Units.SI.Area	A_glazing (from PartialShading)		Surface area of the glazing
Modelica.Units.SI.Area	A_frame (from PartialShading)		Surface area of the frame
Modelica.Units.SI.Angle	inc (from PartialShading)		Surface inclination
Modelica.Units.SI.Temperature	Tenv_nom (from PartialShading)	280	Nominal temperature of environment
Modelica.Units.SI.Emissivity	epsSw_frame (from PartialShading)		Short wave solar absorption coefficient of the frame
Modelica.Units.SI.Emissivity	epsLw_frame (from PartialShading)		Long wave solar absorption coefficient of the frame
Modelica.Units.SI.Emissivity	epsLw_glazing (from PartialShading)		Long wave solar absorption coefficient of the glazing
Modelica.Units.SI.Emissivity	epsSw_shading (from PartialShading)	0.8	Short wave emissivity of the shading object
Real	g_glazing (from PartialShading)		Nominal shading coefficient of the glazing
Boolean	linCon (from PartialShading)	false	Linearise convective heat transfer
Boolean	linRad (from PartialShading)	false	Linearise radiative heat transfer
Boolean	haveBoundaryPorts (from PartialShading)	true	Include ports for setting boundary conditions
Boolean	haveFrame (from PartialShading)	A_frame*epsLw_frame > 0	Frame enabled
Modelica.Units.SI.CoefficientOfHeatTransfer	hSha (from PartialShading)	12	Equivalent thermal conductance of the shading device
Window properties
Modelica.Units.SI.Angle	azi (from PartialShading)		Window azimuth angle

Connectors

Type	Name	Default	Description
Modelica.Blocks.Interfaces.RealInput	HDirTil (from PartialShading)		Direct solar illuminance on surface
Modelica.Blocks.Interfaces.RealInput	HSkyDifTil (from PartialShading)		Diffuse sky solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealInput	HGroDifTil (from PartialShading)		Diffuse ground solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealInput	angZen (from PartialShading)		Angle of incidence
Modelica.Blocks.Interfaces.RealOutput	HShaDirTil (from PartialShading)		Shaded direct solar illuminance on surface
Modelica.Blocks.Interfaces.RealOutput	HShaSkyDifTil (from PartialShading)		Shaded diffuse sky solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealOutput	HShaGroDifTil (from PartialShading)		Shaded diffuse ground solar illuminance on tilted surface
Modelica.Blocks.Interfaces.RealOutput	iAngInc (from PartialShading)		Angle of incidence after transmittance through (possible) shading
Modelica.Blocks.Interfaces.RealInput	angInc (from PartialShading)		Inclination angle
Modelica.Blocks.Interfaces.RealInput	angAzi (from PartialShading)		Azimuth angle
Modelica.Blocks.Interfaces.RealInput	Ctrl (from PartialShading)		Control signal between 0 and 1, i.e. 1 is fully closed
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b	port_frame (from PartialShading)
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a	port_glazing (from PartialShading)
Modelica.Blocks.Interfaces.RealInput	TEnv (from PartialShading)		Environment temperature
Modelica.Blocks.Interfaces.RealInput	Te (from PartialShading)
Modelica.Blocks.Interfaces.RealInput	hForcedConExt (from PartialShading)
Modelica.Blocks.Interfaces.RealOutput	TDryBul (from PartialShading)		Exterior surface air temperature
Modelica.Blocks.Interfaces.RealInput	m_flow (from PartialShading)

Components

Type	Name	Default	Description
Modelica.Units.SI.Irradiance	HSha (from PartialShading)	HShaDirTil + HShaSkyDifTil + HShaGroDifTil	Total shaded solar irradiance
Modelica.Units.SI.Irradiance	H (from PartialShading)	HDirTil + HSkyDifTil + HGroDifTil	Total unshaded solar irradiance
IDEAS.Buildings.Components.BaseClasses.RadiativeHeatTransfer.ExteriorHeatRadiation	skyRadFra
IDEAS.Buildings.Components.BaseClasses.ConvectiveHeatTransfer.ExteriorConvection	eConFra
IDEAS.Buildings.Components.BaseClasses.RadiativeHeatTransfer.ExteriorSolarAbsorption	solAbs
IDEAS.Buildings.Components.BaseClasses.RadiativeHeatTransfer.ExteriorHeatRadiation	skyRad
IDEAS.Buildings.Components.BaseClasses.ConvectiveHeatTransfer.ExteriorConvection	eCon
Modelica.Blocks.Math.Add	solDif
Modelica.Blocks.Sources.RealExpression	TeExpr		Expression for Te
Modelica.Blocks.Sources.RealExpression	TEnvExpr		Expression for TEnv

Revisions

July 18, 2022, by Filip Jorissen:
First implementation.