[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [EnergyPlus_Support] changing glass properties
It is okey.
Thank you very much.
--- Richard Raustad <RRaustad@xxxxxxxxxxxx> wrote:
> Glass properties require that:
>
> Transmittance + Reflectance + Absorptance = 1
>
> Making your transmittance = 0.99998 should work.
>
> neslihanturkmenoglu wrote:
> >
> > I had to define a glass layer in order to put my
> blinds in front of
> > window. But as I do not want the glass to be
> considered in the
> > calculation(open window with blind)I changed the
> transmittance and
> > reflectance values to 0.99999 and 0.00001 in
> order. But it gives an
> > error like;
> >
> > ** Severe ** Solar transmittance + front solar
> reflectance not <
> > 1.0 for material GLASS - CLEAR PLATE 1 / 4 IN
> > ** Severe ** Solar transmittance + back solar
> reflectance not <
> > 1.0 for material GLASS - CLEAR PLATE 1 / 4 IN
> > ** Severe ** Visible transmittance + front visible
> reflectance
> > not < 1.0 for material GLASS - CLEAR PLATE 1 / 4
> IN
> > ** Severe ** Visible transmittance + back visible
> reflectance
> > not < 1.0 for material GLASS - CLEAR PLATE 1 / 4
> IN
> >
> > their sum is equal to 1 . So what is the error? I
> didn't
> > understand.I've attached my summary input file.
> > Thank you
> >
> > !- =========== ALL OBJECTS IN CLASS:
> MATERIAL:WINDOWGLASS
> > ===========
> >
> > MATERIAL:WINDOWGLASS,
> > GLASS - CLEAR PLATE 1 / 4 IN, !- Name
> > SpectralAverage, !- Optical Data Type
> > , !- Name of Window Glass Spectral Data
> > Set
> > 0.0001, !- Thickness {m}
> > 0.999999999, !- Solar Transmittance at Normal
> > Incidence
> > 0.000000001, !- Solar Reflectance at Normal
> > Incidence: Front Side
> > 0.000000001, !- Solar Reflectance at Normal
> > Incidence: Back Side
> > 0.999999999, !- Visible Transmittance at Normal
> > Incidence
> > 0.000000001, !- Visible Reflectance at Normal
> > Incidence: Front Side
> > 0.000000001, !- Visible Reflectance at Normal
> > Incidence: Back Side
> > 0, !- IR Transmittance at Normal Incidence
> > 0.8400000, !- IR Hemispherical Emissivity: Front
> > Side
> > 0.8400000, !- IR Hemispherical Emissivity: Back
> > Side
> > 0.9000000; !- Conductivity {W/m-K}
> >
> >
>
> --
> Richard A. Raustad
> Senior Research Engineer
> Florida Solar Energy Center
> University of Central Florida
> 1679 Clearlake Road
> Cocoa, FL 32922-5703
> Phone: (321) 638-1454
> Fax: (321) 638-1439 or 1010
> Visit our web site at: http://www.fsec.ucf.edu
>
> UCF - From Promise to Prominence: Celebrating 40
> Years
>
>
____________________________________________________________________________________
Pinpoint customers who are looking for what you sell.
http://searchmarketing.yahoo.com/
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
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
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/EnergyPlus_Support/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/EnergyPlus_Support/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx
mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx
<*> To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/