[TRNSYS-users] Trombe wall modeling with Type36

[Antoine Gautier via TRNSYS-users]

Hi Marion

 

Thanks for your answer.

I must confess I am not aware of all the capabilities of the complex glazing
model. Would you have a detailed documentation to share?

Especially does the model enables the computation of air flowrate inside the
cavity based on the discharge coefficients of the lower and upper vents and
a control signal?

I guess the massive wall would not be part of the glazing system so how
would you figure out the coupling between the wall and the glazing?  

 

Best

--

Antoine Gautier

Solamen

+33 6 58 24 02 60

antoine.gautier at solamen.fr

 

De : Marion Hiller [mailto:Hiller at Transsolar.com] 
Envoyé : lundi 19 juin 2017 10:16
À : Antoine Gautier <antoine.gautier at solamen.fr>; TRNSYS users mailing list
at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Objet : AW: [TRNSYS-users] Trombe wall modeling with Type36

 

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

 

----------------------------------------------------------------------------
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Dipl.-Ing. Marion Hiller 
TRANSSOLAR Energietechnik GmbH 
Stuttgart - Munich - New York - Paris  

t:  <tel:%2B49.711.67976.27> +49.711.67976.0   f:  <tel:%2B49.711.67976.11>
+49.711.67976.11

 <http://www.transsolar.com/> 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
<mailto: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> 

 

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