modelPartialWindowBoundaryCondition
Partial model for heat convection or radiation between a possibly shaded window that can be outside or inside the room
Information
Partial model for boundary conditions for convection and radiation for a window surface with or without shade, that is outside or inside the room.
This allows using the model as a base class for windows with inside shade, outside shade, or no shade.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Area | A | Heat transfer area of frame and window | |
| Real | fFra | Fraction of window frame divided by total window area | |
| Modelica.Units.SI.Area | AFra | fFra*A | Frame area |
| Modelica.Units.SI.Area | AGla | A - AFra | Glass area |
| Shading | |||
| Boolean | haveExteriorShade | Set to true if window has exterior shade (at surface a) | |
| Boolean | haveInteriorShade | Set to true if window has interior shade (at surface b) | |
| Boolean | haveShade | haveExteriorShade or haveInteriorShade | Set to true if window system has a shade |
| Boolean | thisSideHasShade | Set to true if this side of the model has a shade | |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | uSha | Input connector, used to scale the surface area to take into account an operable shading device, 0: unshaded; 1: fully shaded | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | air | Port that connects to the air (room or outside) | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b | glaUns | Heat port that connects to unshaded part of glass | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b | glaSha | Heat port that connects to shaded part of glass | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | frame | Heat port at window frame |
Revisions
-
March 2, 2015, by Michael Wetter:
Refactored model to allow a temperature dependent convective heat transfer on the room side. This is for issue 52. -
August 25 2010, by Michael Wetter:
First implementation.