[TRNSYS-users] u value changes in TRNSYS

[David BRADLEY]

Enyuan,
    The u-value (and g-value) shown in the upper right corner of the 
TRNBuild window type manager are for display only; these values are 
simply read out of the w-4 library. At the end of the file, you will 
find some lines that look like the following:

  11015 OPTWHITE15                                   15 5.5 0.87 
0.852    0.075   0.90    1   15.00
  12001 Pilkington,OPTITHERM,Coating#3               4/16/4 1.3 0.64 
0.516    0.213   0.76    2   24.00

The u-value fields are shown in red, the g-value (SHGC) values are shown 
in blue. You can write whatever numbers you want in those fields; 
TRNBuild picks them up and displays them.
Kind regards,
  David



On 2/22/2013 14:43, Enyuan Hu wrote:
> Dear all,
>
> Recently I used WINDOWS 6.3 to define a windows with desired 
> properties. I manipulated the configuration so that the outcome u 
> value is 1.88 which I wanted it to be. Following the window-defining 
> tutorial, I was able to transport the information into TRNSYS 
> by modifying the W4-lib file and Prgwin.lib file. However, when I 
> selected it from the windows library, the shown value was 1.63. Can 
> anyone provide some possible explanations? Thanks.
>
> cheers,
> Enyuan
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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