[Radiance-general] optics2glaze_glaze script

Robin Mitchell rdmitchell at lbl.gov
Thu Oct 2 08:23:34 PDT 2014


I don't know anything about Radiance, but in terms of what you are trying
to model, it appears to be a laminate. You can't model that in WINDOW. You
need to model it in Optics and then import it into the WINDOW Glass Library
as a monolithic layer. There are detailed instructions about how to do this
on our WINDOW Knowledge Base.

http://windows.lbl.gov/software/NFRC/NFRCLaminates.html -- click on the
first link called Laminate Procedures.

Robin Mitchell
Building Technology and Urban Systems Department
Environmental Energy Technologies Division
Lawrence Berkeley National Laboratory

On Thu, Oct 2, 2014 at 8:13 AM, Todor Syarov <thodor at abv.bg> wrote:

> Hello,
> I am a student in Vienna and working on a daylight simulation with
> pipeflow:
> IDGB#optics6#window7.2#ecotect2011#grasshopper#radiance#daysim3.1
> Asking with un unease, since you must also have a tight schedule,
> still I need to post two question:
>    - What are  the steps creating double glazing material with coating
>    for Radiance?  After generating the *.rad files from optics do you manually
>    correct the material in Radiance editor?
>    - How do I apply optics2glaze with the glazing script in Perl script
>    or would you recommend just the Optics6 export in rad?
> here is one of the glazing systems:
> 1st layer: pane 4mm
> PVB coating 0.78mm
> 6mm glass pane#cool lite skn 174
> 22mm Argon 90%
> 2nd pane : 4mmTn = 64%
> (IGDB source)
> Manufacturer value of the system
> Tn=68%
> R(outside)=13%
> R(inside)=11%
> For my understanding tried to compare some values from manufacturer with
> my Window output - and the discrepancy is too big.
> The PVB is missing, though.
>    - How would you proceed when you solve this problem elegantly?
> Any comments are highly appreciated.
> Kind Regards from Vienna,
> Niya
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