[BLDG-SIM] eQUEST daylight through interior windows

[Renee Azerbegi]

I have never had success at getting daylighting to work without exterior
glazing on a wall. Interior glazing and skylights alone will not work.
DOE2 engines require some exterior walled glazing. I would recommend
that you create the zone in a separate file, determine the T-vis and
SHGC change through two layers of glazing on the wall and add your
skylights. I'm not clear if DOE2 will model the daylighting effect of
skylights well or if it will just take the daylight energy savings from
the wall. I was modeling SolaTubes the other day in a zone with exterior
walled glazing and it didn't seem to provide much savings, a lot less
than I would have expected.  Anyone else have any thoughts on this?
Renee

________________________________

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of
Kingsley, Michael L.
Sent: Monday, March 12, 2007 7:21 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] eQUEST daylight through interior windows



I am modeling a building with a 4-story internal atrium with skylights
on the roof.  There are some interior rooms with interior windows facing
the atrium, and I have enabled daylighting for these rooms.  When I run
the simulation I get errors for all of the rooms with only interior
windows saying that the window area must be greater than 0.1 ft2 for the
room.  The windows are much larger than that.  Has anyone else run into
this kind of problem?  Any thoughts?

 

Thanks in advance!

 

Michael L. Kingsley

E-mail <mailto:kezark at saic.com> :  kingsleym at saic.com
<mailto:kezark at saic.com> 

 


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