[TRNSYS-users] Type 56 net energy balance from window to zone

Tue May 30 03:45:06 PDT 2017

Thank you Jakob for thinking of it again.

Actually I think you were partly right too: there is something missing in my
balance i.e. radiative heat & internal radiative gains absorbed by the
inside surface.

So I cannot figure out how to account for this! If you have any further
thoughts about it

(I forgot to post on the users list before: I'll reply to all now.)

Best

--

Antoine Gautier

Solamen

+33 6 58 24 02 60

antoine.gautier at solamen.fr

De : hotline [mailto:hotline at Transsolar.com] 
Envoyé : mardi 30 mai 2017 10:28
À : Antoine Gautier <antoine.gautier at solamen.fr>
Objet : AW: [TRNSYS-users] Type 56 net energy balance from window to zone

Dear Antoine,

thinking of it again I have to confess that you were right in the first
place – sorry for that

Best

Jakob

____________________________________________________________________________
______________________

Jakob Merk M.Sc.

Transsolar Energietechnik GmbH

Curiestraße 2

70563 Stuttgart

Telefon: +49 711 67976-0
Fax:        +49 711 67976-11
Email:     <mailto:merk at transsolar.com> merk at transsolar.com
 <http://www.transsolar.com/> http://www.transsolar.com

Transsolar: KlimaEngineering- Technologien für energieeffizientes Bauen und
Nutzerkomfort in Gebäuden

Stuttgart – München – New York – Paris 

Geschäftsführer :Diplom-Ingenieur Matthias Schuler, Diplom-Ingenieur Thomas
Auer, Diplom-Physiker Stefan Holst, Diplom-Betriebswirt Dieter Schnelle

Eingetragen beim Amtsgericht Stuttgart HRB 23347, 

Steuernummer: 99073/00911,USt-IdNr.: DE 152272639

Von: Antoine Gautier [mailto:antoine.gautier at solamen.fr] 
Gesendet: 29 May 2017 12:07
An: hotline <hotline at Transsolar.com <mailto:hotline at Transsolar.com> >
Betreff: RE: [TRNSYS-users] Type 56 net energy balance from window to zone

Thanks Jakob!

I thought about QABSI (with the analogy to a wall).

The problem is from what I understand QABSI includes absorbed solar gain at
inside surface: part of it being reemitted inwards so included in QCOMI. 

Basically for a single pane glazing this part should correspond to QSHFPR so
this variable could be subtracted to QCOMI and not counted twice.

However for a multiple pane glazing this part should be lower than QSHFPR
which also accounts for inwards reemission of absorbed radiation by the
outer panes.

What if not accounted for in QSTRNS + QCOMI – QSOUT is only radiative heat &
internal radiative gains absorbed by the inside surface right?

--

Antoine Gautier

Solamen

+33 6 58 24 02 60

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

De : hotline [mailto:hotline at Transsolar.com] 
Envoyé : lundi 29 mai 2017 11:35
À : Antoine Gautier <antoine.gautier at solamen.fr
<mailto:antoine.gautier at solamen.fr> >; TRNSYS users mailing list at
OneBuilding.org <trnsys-users at lists.onebuilding.org>
Objet : AW: [TRNSYS-users] Type 56 net energy balance from window to zone

Dear Antoine,

Sounds promising but don’t forget QABSI

QSTRNS + QCOMI – QSOUT – QABSI

Best
Jakob

____________________________________________________________________________
______________________

Jakob Merk M.Sc.

Transsolar Energietechnik GmbH

Transsolar: KlimaEngineering- Technologien für energieeffizientes Bauen und
Nutzerkomfort in Gebäuden

Stuttgart – München – New York – Paris 

Geschäftsführer :Diplom-Ingenieur Matthias Schuler, Diplom-Ingenieur Thomas
Auer, Diplom-Physiker Stefan Holst, Diplom-Betriebswirt Dieter Schnelle

Eingetragen beim Amtsgericht Stuttgart HRB 23347, 

Steuernummer: 99073/00911,USt-IdNr.: DE 152272639

Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im
Auftrag von Antoine Gautier via TRNSYS-users
Gesendet: 29 May 2017 09:12
An: 'TRNSYS users mailing list at OneBuilding.org'
<trnsys-users at lists.onebuilding.org
<mailto:trnsys-users at lists.onebuilding.org> >
Betreff: [TRNSYS-users] Type 56 net energy balance from window to zone

Hi

I am trying to compute the net energy balance from window (glazing + frame,
no shading device) to zone using Type 56.

My best guess would be: QSTRNS + QCOMI – QSOUT.

1) Does that seem correct to you?

2) Is there a way to further split QCOMI between convective and longwave
radiation parts?

Thanks a lot for your help

--

Antoine Gautier

Solamen

+33 6 58 24 02 60

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

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