Construction: Airboundary for Window Material

asked 2020-05-05 23:25:01 -0600

Anqi's avatar

updated 2020-05-07 09:06:32 -0600

I am trying to model a room which is divided into two zones. I modelled the interzone surface as an opaque surface (windowframe) and placed a verry large fenestration surface (window) inside of the interzone opaque surface. When I tried to assign the AirBoundary construction to that interzone fenestration surface, the following errors occured:

* Severe * FenestrationSurface:Detailed="INSIDEWINDOW_ZONE1" has an opaque surface construction; it should have a window construction.
* Severe * FenestrationSurface:Detailed="INSIDEWINDOW_ZONE2" has an opaque surface construction; it should have a window construction.

The Aircoundary was constructed using the following setting:

Airboundary,             !- Name
InteriorWindow,          !- Solar and Daylighting Method
GroupedZones,            !- Radiant Exchange Method
SimpleMixing,            !- Air Exchange Method
10,                      !- Simple Mixing Air Changes per Hour {1/hr}     ;

According to the input/ouput reference of EP9.3: "Construction:AirBoundary indicates an open boundary between two zones. It may be used for base surfaces and fenestration surfaces." In this case, how can I assign an airboundary construction to the interzone window?

Thank you!

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@Anqi, try making that fenestration surface type to a door instead of a window. Then it should accept the opaque construction.(Yes, I know it really isn't opaque, but from the error it seems like it may be treated as opaque for what surface types it can be used on).

David Goldwasser's avatar David Goldwasser  ( 2020-05-06 11:36:08 -0600 )edit