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[TRNSYS-users] Re : Problem with windows lib



Thanks a lot,

I just need some confirmation.
What is (or what are) the u-value used by TRNSYS ?
Because if I change the value in "Cond(W/m2-C     )", I don't see the value changing in TRNBuild window type manager.

In fact, if I am right, this value refers to this one :

Overall and Center of Glass Ig U-values (W/m2-C)
Outdoor Temperature                 -17.8 C      15.6 C      26.7 C      37.8 C
Solar      WdSpd  hcout hrout  hin
(W/m2)     (m/s)     (W/m2-C)
   0        0.00  12.25  3.30  7.89  2.59 2.59  2.67 2.67  2.74 2.74  2.97 2.97
   0        6.71  25.47  3.24  7.93  2.80 2.80  2.87 2.87  2,95 2.95  3.21 3.21
 783        0.00  12.25  3.38  7.61  2.61 2.61  2.78 2.78  2.96 2.96  3.10 3.10
 783        6.71  25.47  3.29  7.72  2.83 2.83  2.95 2.95  3.17 3.17  3.33 3.33

*** END OF LIBRARY ***

********************************************************************************

*WinID Description Aufbau U-Value g-value T-sol Rf-sol T-vis

********************************************************************************

1001 Simple_Vitrage 4 5.8 0.870 0.850 0.075 0.901

2001 Double_Vitrage 2.5/12.7/2.5 2.7 0.777 0.727 0.129 0.817


( By the way, is there a description somewhere of the content, the units and the use of the W4-lib.dat files ?
Just to be able to know more things without asking so much questions! )

Thanks again,
Damien