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Re: [TRNSYS-users] Re : Problem with windows lib
Damien,
Window 4002, 4102, 4202 and 4302 differ only in
size.
The window data was created without spectral
data. TRNSYS 16 uses a 2 band model (visual and nonvisual) and
windows created
without spectral data may cause this problem. Windows
with an ID lower than 9999 are included in the library for backwards
compatibility reasons.
For solving the problem, you may modify properties of
the window data in your BUI by an editor.
I suggest NOT to edit the BASIC library itself. This
may leed to confusion.
For solving the error message TRNSYS calculated a
one band model (solar) only by setting
values for Tvis = Tsol, Rfvis = Rfsol and Rbis = Rbsol
of the window data in the BUI file.
Tsol 0.268 0.270 0.263 0.253 0.243 0.223 0.183
0.116 0.042 0.000 0.207
Abs1 0.327 0.330 0.339 0.345 0.347 0.351 0.367
0.380 0.313 0.001 0.347
Abs2 0.066 0.066 0.067 0.068 0.070 0.071 0.070
0.064 0.051 0.000 0.067
Abs3 0.108 0.110 0.112 0.113 0.110 0.107 0.101
0.082 0.041 0.000 0.100
Abs4
0 0 0
0 0 0
0 0 0
0 0
Abs5
0 0 0
0 0 0
0 0 0
0 0
Abs6
0 0 0
0 0 0
0 0 0
0 0
Rfsol 0.231 0.223 0.220 0.221 0.230 0.247 0.279
0.357 0.554 0.999 0.269
Rbsol 0.231 0.223 0.220 0.221 0.230 0.247 0.279 0.357
0.554 0.999 0.269
Tvis 0.625 0.632 0.615 0.595 0.570 0.523 0.425 0.265
0.097 0.000 0.484
Rfvis 0.137 0.125 0.121 0.125 0.142 0.172 0.226 0.336 0.554
0.999 0.199
Rbvis 0.137 0.125 0.121 0.125 0.142 0.172 0.226 0.336 0.554 0.999
0.199
However, what you want to simulate is window with a
very low conductivity.
You may modify the conductivity of the glas panes
"Cond(W/m2-C ) " for reducing the total u value in
the BUI file.
Layer
ID# 9061
9052 9062
0
0
0
Tir
0.000 0.000
0.000
0
0 0
Emis
F
0.840 0.840
0.070
0
0 0
Emis
B
0.070 0.840
0.840
0
0
0
Thickness(mm)
4.0 4.0
4.0
0
0
0
Cond(W/m2-C )225.0
225.0 225.0
0
0 0
Spectral
File None
None None
None None
None
Best,
Marion
Yes,
my TRNSYS version is 16.
As for the windows ID, all those with an
u-value of 0.4 are causing the same error, in my model : 4002, 4102, 4202,
4302.
I join the files needed in a .rar.
Thanks
De : David Bradley
<bradley@tess-inc.com>
À
: Damien Palacios <pseudomino@rocketmail.com>
Cc : trnsys-users@cae.wisc.edu
Envoyé le : Mer 21 juillet 2010, 16h 37min
37s
Objet : Re:
[TRNSYS-users] Problem with windows lib
Damien,
Could
you please specify which version of TRNSYS you are using and which window ID you
chose (there are a number of different windows in the win4lib.dat file). Please
also send your *.tpf, *.bui (or *.b17), and *.lst files as well as any others
that would be needed in order to run the
project.
Best,
David
On 7/21/2010 05:36, Damien Palacios
wrote:
Hello,
TRNSYS returns be plenty of these errors in listing result
file :
winlib reader: incorrect selectivity of visual+solar
transmission caused a negative value for nonvisual Transmission Tra_ang_nonvis
= -0.045 for Window-ID 4202 at
an angle of 30 ° Tra_ang_nonvis is set to 0 for this
angle
I use the library
C:\Program
Files\Trnsys16\Building\Lib\Basic\W4-lib.dat
Actually, I would need a
window with a u-value of 0.1 kJ/h/m²/K , and because there are not such
window, I use the smallest value : 0.4.
But for each of the windows with
this value, I have the same error.
Can you help me? At least to know
why does this message appears?
Note: the issue is the same if I try in
American\W4-lib.dat, German\W4-lib.dat...
Have a nice
day!
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--
***************************
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
bradley@tess-inc.com
http://www.tess-inc.com
http://www.trnsys.com