[TRNSYS-users] naturel ventilation

MAIS, Thomas t.mais at bouygues-construction.com
Tue Apr 16 07:01:47 PDT 2013

Hello everyone,
I'm studying natural ventilation in school buildings. I already work on TRNSYS so I would like to use the TRNFLOW plug-in.
Is anybody got a tutorial or something like that ? It would be very kind.

De : trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] De la part de Karol Bandurski
Envoyé : mardi 26 mars 2013 14:59
À : 'TRNSYS users mailing list at the Solar Energy Lab, UW-Madison'
Objet : Re: [TRNSYS-users] naturel ventilation


Honestly  firstly it should be stated that natural ventilation is so complex phenomena that simulation of this issue is very difficult - there is a lot of uncertainty (e.g. wind Cp value)

Using Type 56 (TRNBuild) you can only define natural ventilation (infiltration, ventilation mode, coupling flow of walls).

To simulate natural ventilation accurately you should try to use CFD software (Fluent/ANSYS, OpenFOAM-HVACTool, OpenFOAM-Helyx), there is possibility to coupling this softs with TRNSYS e.g. type 101.

You can try to simulate it in more coarse way using airflow network method/software - e.g. Contam, ESP-r or commercial TRNBuild plug-in: TRNFLOW.
There is possibility to coupling Contam or ESP-r model with TRNBuild - see type 97 and 130.

Contam is free airflow and contaminant distribution simulation software, ESP-r is free building performance (both thermal and airflow) simulation software.

Good luck,

From: jihad alaoui sosse [mailto:sys.energie at gmail.com]
Sent: Monday, March 25, 2013 4:09 PM
To: TRNSYS-users at cae.wisc.edu<mailto:TRNSYS-users at cae.wisc.edu>
Subject: [TRNSYS-users] naturel vantilation

how to model a naturel ventilation in a multizone building

Jihad Alaoui Sosse

Ingénieur d'étude

Département Energie

Tél : O648883325 ;

Courriel : sys.energie at gmail.com<mailto:sys.energie at gmail.com>

NOVEC,  Filiale de CDG Développement - Groupe CDG

Angle Avenue Annakhil et Mehdi Ben Barka

Espace les Palmiers - Hay Riad - Rabat - MAROC
Site web : www.novec.ma<http://www.novec.ma>

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