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Re: [EnergyPlus_Support] Does EnergyPlus support daylighting through internal windows in floors?
This situation is also influenced by the method you choose for
SolarDistribution in the Building input object. If you DO NOT choose
FullInteriorAndExterior or FullInteriorAndExteriorWithReflections, then
all beam solar entering the zone through exterior windows is assumed to
fall on the floor. Then as Mike has said, a proportion based on the
window area will be transmitted to the adjacent zone, and has Linda has
said, this will be treated as diffuse (not beam) solar in the adjacent zone.
Rob
=========
Michael J. Witte wrote:
> If you want to transmit solar from one zone to another, you must use a
> pair of
> interior windows as you suggest. This will transmit both beam and diffuse
> between zones, but once the solar enters the second zone it is all
> treated as
> diffuse. Search the Input Output Reference for "interior window" for more
> information.
>
> The amount of solar transmitted from the attic zone to the zone below
> should be
> proportional to the size of the interior window, and the remaining
> attic floor
> area should be opaque. If you are seeing something other than this,
> please
> upload input files to the yahoo files area or send zipped to energyplus-
> support@xxxxxxxx <mailto:support%40gard.com>
>
> Mike
>
> On 13 Aug 2007 at 9:36, lawrenceblount wrote:
>
> > Hi,
> >
> > I am fairly new to EnergyPlus, although I have used Ecotect and Tas
> > before.
> > I have a light well that is effectively a window in the floor of an
> > attic space. The attic has some skylights.
> > I am finding that when I add a matching pair of windows to the internal
> > ceiling and floor objects that the whole midefloor becomes transparent
> > to direct solar. If I remove the internal windows the midfloor then
> > becomes completely opaque.
> >
> > I would like comments as to whether I am likely to be making some
> > errors or this function is outside the capability of E+. The capability
> > is available in wall elements.
> >
> > Cheers
> > Lawrence
> >
> >
> >
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov <http://www.energyplus.gov>
> >
> > The group web site is:
> > http://groups.yahoo.com/group/EnergyPlus_Support/
> <http://groups.yahoo.com/group/EnergyPlus_Support/>
> >
> > Attachments are not allowed -- please post any files to the
> appropriate folder
> > in the Files area of the Support Web Site.
> >
> > EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the
> > Documentation link and press the "search" button.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
--
Robert J. Hitchcock, Ph.D.
Lawrence Berkeley National Laboratory
1 Cyclotron Road, Mailstop 90-3111
Berkeley, CA 94720
RJHitchcock@xxxxxxx
530.295.9433 (telecommute office)
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