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Dear Marco, unfortunately, the solar absorption as well as the long wave
emissivity coefficients of opaque surfaces can’t be changed during the simulation currently. If you want to vary the coefficients on the outside face of an external wall, you may use the following “workarounds”:
The draw back of the “workaround” is that you have to do this for each surface. Doing this by a “construction type” is of course much more comfortable. Well, it doesn’t seems hard to implement this as a “new feature”. Are you interested in varying the values on the inside face of the outside face of a wall? Best regards, Marion Transsolar Software Team hotline@transsolar.com Transsolar
Stuttgart | Munich | Paris | New York Transsolar Energietechnik GmbH | Curiestrasse 2 | 70563 Stuttgart | Germany CEO: Matthias Schuler, Thomas Auer, Stefan Holst, Dieter Schnelle
Registered at Amtsgericht Stuttgart HRB 23347 | USt-IdNr.: DE 152272639 Von: TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
Im Auftrag von Marco Noro via TRNSYS-users Dear TRNSYS-users mailing list, I would like to kindly ask you how is possible to implement the variable absorption characteristic of walls in TRNSYS. When using TRNSYS and TRBUILD, fixed solar absorption and long waive emissivity are allowed to be
set when defining a wall layer. How do you managed the necessity to give variable (with the surface temperature) values of such parameters? Thank you in advance for your cooperation. Best regards Marco Noro *************************************************** Marco Noro, PhD Associate Professor Department of Management and Engineering - University of Padova Stradella San Nicola, 3 - 36100 Vicenza (VI) - Italy Ph. +390444 998704 Email
marco.noro@unipd.it Skype nereo3 |