Re: [TRNSYS-users] How to best model zones in zones?

Thanks Marion!

So there is a better option when not using Trnsys3d? It would be more important to get a detailed

zone-zone interaction than having the 3D radiation models.

Cutting the hall in different zones would also be possible. Is there a limitation as to how the zones

might be shaped? For example L or H-shaped? Technically a shape like that would not create a hole,

but then the 3d-building documentation states that the zones "must be convex, meaning that every

surface in the zone should be in the line of sight with all other surfaces of the zone".

I suppose this also applies?

Thanks again!

David

Gesendet: Mittwoch, 07. Januar 2015 um 11:13 Uhr
Von: "Marion Hiller" <Hiller@Transsolar.com>
An: "'TRNSYS users mailing list at OneBuilding.org'" <trnsys-users@lists.onebuilding.org>
Betreff: Re: [TRNSYS-users] How to best model zones in zones?

David,

A zone in Trnsys3d can’t have holes.

In order to do so you need to compose the production hall into zone volumes that fulfil this requirement.

Often halls are cut horizontal at upper machine level.

Do you need 3D radiation modes?

Marion

-----------------------------------------------------------------------------------------------------------------------------------------------------------

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

t: +49.711.67976.0 f: +49.711.67976.11

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@lists.onebuilding.org] Im Auftrag von David Geiger
Gesendet: Mittwoch, 7. Januar 2015 10:33
An: trnsys-users@lists.onebuilding.org
Betreff: [TRNSYS-users] How to best model zones in zones?

Hello folks,

I'm trying to model a production hall containing enclosed machines. Since I am interested in the behavoir of the hall

as well as the machine enclosures, I was wondering if it is possible to define zones enclosed in other zones.

I tried this using the 3d-multizone builging but could only get the simulation to work when the boundary conditions of the machine

enclosures were set to "external". But I suppose that's like defining a shading group because the zones did not interact.

It feels like I'm missing a big point here, so any pointers are appreciated.

Thank you very much!

Kind regards,

David

___________________________

Dipl.-Wirtsch.-Ing David Geiger

Universität Kassel

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