[TRNSYS-users] mass flow rate between adjacent zones

David BRADLEY d.bradley at tess-inc.com
Tue Nov 2 07:37:31 PDT 2021


Pu,

  Type56 (for which TRNBuild is the interface) is a thermal model of the 
building. Usually the way interzonal air flow is computed is to couple 
the Type56 thermal model with either COMIS (through TRNFlow) or CONTAM 
(through Type97 or Type98). Both COMIS and CONTAM are "bulk air flow 
models." Type56 passes the zone temperatures to the bulk air flow model, 
which computes zonal pressures, air density, etc. and the resulting 
interzonal air flow rates and then passes those back to Type56.

kind regards,

  David



On 11/02/2021 04:36, Huijie Pu via TRNSYS-users wrote:
> Hello,
>         I'm doing a zonal model. Zonal simulation involves the 
> calculation of mass flow rates between adjacent zones. in my study, 
> the mass flow rates ṁi,j between adjacent zones i and j are calculated 
> with Matlab which was coupled with TRNSYS . However, the calculation 
> of mass flow rates between adjacent zones involves the air density, 
> mass and pressure in each zone.  But TRNBuild seems to be unable to 
> output density, mass and pressure. I don't know if I didn't find it. 
> How can I get these data?
>
> kind regards,
> Pu
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com
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