[TRNSYS-users] B4_QTRANS

[Marion Hiller]

Dear Camille,

Every energy balance has a boundary.
The boundary of the energy balance 4 is the inside surface of walls, floors, ceilings/roofs and windows.
The Energy balance 4  doesn't include the constructions themselves!!

In other words, B4_QTRANS is the energy that leaves/enters a thermal zone by conduction into/out of the construction of the side of walls, floors, ceilings/roofs and windows facing the zone.

Best regards,

Marion

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Dipl.-Ing. Marion Hiller
TRANSSOLAR Energietechnik GmbH
Stuttgart - Munich - New York - Paris
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KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäuden
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Von: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> Im Auftrag von BERNARD Camille via TRNSYS-users
Gesendet: Donnerstag, 21. Februar 2019 09:05
An: trnsys-users at lists.onebuilding.org
Cc: BERNARD Camille <camille.bernard at etamine.coop>
Betreff: [TRNSYS-users] B4_QTRANS

Hello,

I model a typical office building : one intermediate level of a tower.

In order to understand the energy balance, I have looked at each variable of balance 4.
I have difficulties to understand QTRANS, and the explanation in the documentation is quite vague :
Balance 4 is a "balance for zones" : results are given by zone.
QTRANS is described as : "transmission into the surface from inner surface node (might be stored in the wall, going to a slab cooling or directly transmitted)" : it refers to surface and not to zone...

Do you know what does it represent and how it is calculated ?

Thank you,
Best regards,
Camille Bernard | Chargée d'études
[Das Bild wurde vom Absender entfernt. Etamine]
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83-85 boulevard Vincent Auriol - 75013 Paris
mobile : 07.63.45.95.01
camille.bernard at etamine.coop

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