you can use that approach, but make sure that you adapt both the conductivity and the thermal capacity. As long as you do not use active layers, you should be OK.
Splitting your wall into two walls of 20 cm thickness is indeed another options you can try
On Wed, Jun 27, 2012 at 9:31 AM,
<struong@student.ulg.ac.be> wrote:
Dear TRNSYS-users,
I'm currently encoding my building in TRNBuild and in a wall I have a layer of cellulose of 40 cm thickness. When i try to save my project, I get the error message "Stability criteria not fullfilled" (see picture in attached file "error.JPG). If i reduce this thickness to 20 cm, the problem is solved so it seems that it is a problem due to the thickness of the layer. How can I solve the problem? I'm thinking about encoding a thickness of 20 cm and divide the conductivity of the material by 2 in order to have an identical u-value for my wall but I don't know if it is correct! Indeed if I do so, the inertia of my wall (hence my building) will not be the same! Do you have some advice?
Best regards,
Truong Van Quynh Stéphan
2 ème Master STE
Gembloux Agro Bio-Tech
Belgium
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