[TRNSYS-users] Trombe wall modeling with Type36

[Marion Hiller via TRNSYS-users]

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
TRANSSOLAR Energietechnik GmbH
Stuttgart - Munich - New York - Paris
t: +49.711.67976.0<tel:%2B49.711.67976.27>   f: +49.711.67976.11<tel:%2B49.711.67976.11>
www.transsolar.com/<http://www.transsolar.com/>

KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäuden
Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart
Amtsgericht Stuttgart - HRB 23347 / Steuernummer: 99073/00911 / USt-IdNr.: DE 152272639
Geschäftsführer: Matthias Schuler, Thomas Auer, Stefan Holst, Dieter Schnelle


Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Antoine Gautier via TRNSYS-users
Gesendet: Dienstag, 23. Mai 2017 15:26
An: 'TRNSYS users mailing list at OneBuilding.org' <trnsys-users at lists.onebuilding.org>
Betreff: [TRNSYS-users] Trombe wall modeling with Type36

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
antoine.gautier at solamen.fr<mailto:antoine.gautier at solamen.fr>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20170619/20958456/attachment-0003.htm>