[Equest-users] daylighting with skylights

[Karen Walkerman]

Hi Franz,

The trouble is that you have a plenum, which is essentially another zone
above your conditioned spaces.  The skylights shine light into the plenum,
not all the way down into your zones.  This is usually an artifact of the
wizard and setting the floor to floor height different from the floor to
ceiling height.  Do you really need a plenum in order to model your
building properly?

--
Karen

On Fri, Feb 3, 2012 at 10:22 AM, Haller, Franz <
franz_haller at aha-engineers.com> wrote:

>  I am have problems daylighting my model with skylights.****
>
> It seem like equest wants to only daylight using windows.  However my
> model is using primarily skylights.  In my core space I am getting error
> message:****
>
> ** **
>
>
> ***ERROR***********************************************************************
> ****
>
>            A daylighting calculation was requested for SPACE EL1 Core Spc
> (G.C5)             ****
>
>            This SPACE has no WINDOWs with AREA more than 0.1 SQFT.****
>
>            Add WINDOWs to this SPACE of turn off DAYLIGHTING.****
>
> ** **
>
> Another issue might be the fact that the daylight azumith does not want to
> point in the Z direction.  It seem only to want look toward a window or
> wall.  I believe this might have something to do with my errors.****
>
> ** **
>
> I have attached my model.  Daylighting is the very last parametric run.***
> *
>
> ** **
>
> Franz Haller****
>
> Energy Modeling/Mechanical****
>
>  ****
>
> *A|H|A Consulting Engineers*
>
> Boston  · Atlanta  · Washington, DC****
>
> 1801 Old Alabama Road****
>
> Suite 125, Roswell GA 30076****
>
> 770-992-8585(p) : 770-992-6902(f)****
>
> http://www.aha-engineers.com****
>
> franz_haller at aha-engineers.com <perduer at aha-engineers.com>****
>
> ** **
>
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