functiongetGlassTR
Transmittance and reflectance of glass
Extends from Buildings.HeatTransfer.Windows.Functions.BaseClasses.partialGlassRadiation (Partial function for glass radiation property).
Information
This function computes the angular variation of the transmittance and reflectance of each glass pane.
It accounts for the transmittance and reflectance among different panes.
Pane 1 is facing outside and pane N is facing the room.
For instance, traRef[TRA, 1, N, iD] means transmittance between layer 1 to N for exterior irradiation and
traRef[TRA, N, 1, iD] means the transmittance for interior irradiation.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | N (from partialGlassRadiation) | Number of glass layers | |
| Integer | NSta (from partialGlassRadiation) | Number of window states for electrochromic windows (set to 1 for regular windows) | |
| Integer | HEM (from partialSingleGlassRadiation) | Index of hemispherical integration | |
| Real[3,N,HEM,NSta] | layer | Property of glass pane |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real[3,N,N,HEM,NSta] | traRef | Glass transmittance, front and back reflectance |
Revisions
-
August 7, 2015, by Michael Wetter:
Revised model to allow modeling of electrochromic windows. This is for issue 445. -
August 29, 2010, by Wangda Zuo:
First implementation.