Buildings.HeatTransfer.Data.GlazingSystems
Package with thermophysical properties for glazing systems
Information
Package with generic records that implement thermophysical properties for glazing systems.Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 Generic
|
Thermal properties of glazing systems |
| SingleClear3
|
Single pane, clear glass 3mm |
| DoubleClearAir13Clear
|
Double pane, clear glass 3mm, air 12.7, clear glass 3mm |
| DoubleElectrochromicAir13Clear
|
Double pane, electrochromic 6mm, air 12.7, clear glass 6mm |
| TripleClearAir13ClearAir13Clear
|
Triple pane, clear glass 3mm, air 12.7, clear glass 3mm, air 12.7, clear glass 3mm |
Buildings.HeatTransfer.Data.GlazingSystems.Generic
Thermal properties of glazing systems
Information
Generic record that implements thermophysical properties for glazing systems.Extends from Modelica.Icons.Record (Icon for records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | haveExteriorShade | false | Set to true if window has an exterior shade (at surface a) |
| Boolean | haveInteriorShade | false | Set to true if window has an interior shade (at surface b) |
| Generic | glass[:] | Layer by layer declaration of glass layers, starting from outside to room-side | |
| Generic | gas[:] | {Buildings.HeatTransfer.Data... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | shade | Shade | |
| CoefficientOfHeatTransfer | UFra | U-value of frame [W/(m2.K)] | |
| Emissivity | absIRFra | 0.8 | Infrared absorptivity of window frame [1] |
| Emissivity | absSolFra | 0.5 | Solar absorptivity of window frame [1] |
Modelica definition
record Generic "Thermal properties of glazing systems"
extends Modelica.Icons.Record;
// parameter Integer nLay(min=1, fixed=true) "Number of glass layers"
// annotation (Evaluate=true);
parameter Boolean haveExteriorShade = false
"Set to true if window has an exterior shade (at surface a)";
parameter Boolean haveInteriorShade = false
"Set to true if window has an interior shade (at surface b)";
parameter Glasses.Generic glass[:]
"Layer by layer declaration of glass layers, starting from outside to room-side";
// Zero array sizes are not supported in Dymola. Therefore, we assign
// a dummy layer. The model for heat conduction in gases will
// write an assert if the thickness is negative.
// Therefore, we ensure that any model overwrites this default setting.
parameter Gases.Generic gas[:] = {Buildings.HeatTransfer.Data.Gases.Air(x=-1)}
"Layer by layer declaration of glass layers, starting from outside to room-side";
parameter Shades.Generic shade "Shade";
parameter Modelica.Units.SI.CoefficientOfHeatTransfer UFra
"U-value of frame";
parameter Modelica.Units.SI.Emissivity absIRFra=0.8
"Infrared absorptivity of window frame";
parameter Modelica.Units.SI.Emissivity absSolFra=0.5
"Solar absorptivity of window frame";
final parameter Boolean haveShade = haveInteriorShade or haveExteriorShade
"Parameter that is true if the construction has a shade";
final parameter Boolean haveControllableWindow=
Modelica.Math.BooleanVectors.anyTrue(
{size(glass[iGla].tauSol, 1) > 1 for iGla in 1:size(glass,1)})
"Flag, true if the window allows multiple states, such as for electrochromic windows";
end Generic;
Buildings.HeatTransfer.Data.GlazingSystems.SingleClear3
Single pane, clear glass 3mm
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | haveExteriorShade | false | Set to true if window has an exterior shade (at surface a) |
| Boolean | haveInteriorShade | false | Set to true if window has an interior shade (at surface b) |
| Generic | glass[:] | {Glasses.ID102()} | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | gas[:] | {Buildings.HeatTransfer.Data... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | shade | Shade | |
| CoefficientOfHeatTransfer | UFra | 3 | U-value of frame [W/(m2.K)] |
| Emissivity | absIRFra | 0.8 | Infrared absorptivity of window frame [1] |
| Emissivity | absSolFra | 0.5 | Solar absorptivity of window frame [1] |
Modelica definition
record SingleClear3 =
Buildings.HeatTransfer.Data.GlazingSystems.Generic (
glass={Glasses.ID102()},
UFra=3) "Single pane, clear glass 3mm";
Buildings.HeatTransfer.Data.GlazingSystems.DoubleClearAir13Clear
Double pane, clear glass 3mm, air 12.7, clear glass 3mm
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | haveExteriorShade | false | Set to true if window has an exterior shade (at surface a) |
| Boolean | haveInteriorShade | false | Set to true if window has an interior shade (at surface b) |
| Generic | glass[:] | {Glasses.ID102(),Glasses.ID1... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | gas[:] | {Gases.Air(x=0.0127)} | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | shade | Shade | |
| CoefficientOfHeatTransfer | UFra | 1.4 | U-value of frame [W/(m2.K)] |
| Emissivity | absIRFra | 0.8 | Infrared absorptivity of window frame [1] |
| Emissivity | absSolFra | 0.5 | Solar absorptivity of window frame [1] |
Modelica definition
record DoubleClearAir13Clear =
Buildings.HeatTransfer.Data.GlazingSystems.Generic (
final glass={Glasses.ID102(), Glasses.ID102()},
final gas={Gases.Air(x=0.0127)},
UFra=1.4) "Double pane, clear glass 3mm, air 12.7, clear glass 3mm";
Buildings.HeatTransfer.Data.GlazingSystems.DoubleElectrochromicAir13Clear
Double pane, electrochromic 6mm, air 12.7, clear glass 6mm
Information
Because Modelica requires the same array length for both glasses, this data set contains two sets of optical properties for both, the electrochromic and the clear glass layer.
Extends from Buildings.HeatTransfer.Data.GlazingSystems.Generic (Thermal properties of glazing systems).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | haveExteriorShade | false | Set to true if window has an exterior shade (at surface a) |
| Boolean | haveInteriorShade | false | Set to true if window has an interior shade (at surface b) |
| Generic | glass[:] | {Glasses.Electrochromic(),Bu... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | gas[:] | {Gases.Air(x=0.0127)} | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | shade | Shade | |
| CoefficientOfHeatTransfer | UFra | 1.4 | U-value of frame [W/(m2.K)] |
| Emissivity | absIRFra | 0.8 | Infrared absorptivity of window frame [1] |
| Emissivity | absSolFra | 0.5 | Solar absorptivity of window frame [1] |
Modelica definition
record DoubleElectrochromicAir13Clear =
Buildings.HeatTransfer.Data.GlazingSystems.Generic (
final glass={Glasses.Electrochromic(),
Buildings.HeatTransfer.Data.Glasses.Generic(
x=0.006,
k=0.9,
tauSol={0.775, 0.775},
rhoSol_a={0.071, 0.071},
rhoSol_b={0.071, 0.071},
tauIR=0,
absIR_a=0.84,
absIR_b=0.84)},
final gas={Gases.Air(x=0.0127)},
UFra=1.4) "Double pane, electrochromic 6mm, air 12.7, clear glass 6mm";
Buildings.HeatTransfer.Data.GlazingSystems.TripleClearAir13ClearAir13Clear
Triple pane, clear glass 3mm, air 12.7, clear glass 3mm, air 12.7, clear glass 3mm
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | haveExteriorShade | false | Set to true if window has an exterior shade (at surface a) |
| Boolean | haveInteriorShade | false | Set to true if window has an interior shade (at surface b) |
| Generic | glass[:] | {Glasses.ID102(),Glasses.ID1... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | gas[:] | {Gases.Air(x=0.0127),Gases.A... | Layer by layer declaration of glass layers, starting from outside to room-side |
| Generic | shade | Shade | |
| CoefficientOfHeatTransfer | UFra | 1.4 | U-value of frame [W/(m2.K)] |
| Emissivity | absIRFra | 0.8 | Infrared absorptivity of window frame [1] |
| Emissivity | absSolFra | 0.5 | Solar absorptivity of window frame [1] |
Modelica definition
record TripleClearAir13ClearAir13Clear =
Buildings.HeatTransfer.Data.GlazingSystems.Generic (
final glass={Glasses.ID102(),Glasses.ID102(),Glasses.ID102()},
final gas={Gases.Air(x=0.0127),Gases.Air(x=0.0127)},
UFra=1.4)
"Triple pane, clear glass 3mm, air 12.7, clear glass 3mm, air 12.7, clear glass 3mm";