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Dear Antoine, I’m back from vacation and claening my emails. My feeling is that the complex glazing model available for Trnsys 18 could be used for modelling a trombe wall. Did you consider this option? Marion -----------------------------------------------------------------------------------------------------------------------------------------------------------
Dipl.-Ing. Marion Hiller t:
+49.711.67976.0 f:
+49.711.67976.11 www.transsolar.com/ Amtsgericht Stuttgart - HRB 23347
/ Steuernummer: 99073/00911 / USt-IdNr.: DE 152272639 Von: TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
Im Auftrag von Antoine Gautier via TRNSYS-users Hi
I use Type36 in Mode 2 (air flowrate computed internally, glazing transmittance as an input) to model a naturally vented Trombe wall. I use the multi-layer detailed window model from Type56 to compute the solar transmittance B3_QSTRNS/B3_QSEXT and U-value UWIN of the window (at each time step). Looking at the source code of Type36 I cannot figure out how the model accounts for the inward-flowing portion of the solar radiation absorbed by the window. Therefore
I would rather provide SHGC (B3_QSTRNS+B3_QSHFPR)/B3_QSEXT instead of solar transmittance as an input to Type36.
The drawback being all this inward-flowing portion considered as radiation absorbed by the massive wall. However the uncertainty (assuming all inward-flowing portion
is radiative) seems lower than totally neglecting the inward-flowing portion. Would somebody have a recommendation to share? Best -- Antoine Gautier Solamen +33 6 58 24 02 60 |