[TRNSYS-users] When I set 1st gournd floor as boundry, what should I set these parameters？

[David BRADLEY]

The principals of those parameters are always the same regardless of 
what category surface you are dealing with. I would highly recommend 
that you refer to the TRNBuild/Type56 manual in order to understand them 
fully.

"geosurf" has to do with the way that beam solar radiation is 
apportioned to the surfaces of the zone/airnode.

" surf. gain inside" is a simplified way of simulating a radiantly 
heated or cooled surface.

"coupling air flow" and "coupling rel. hum." have to do with the 
conditions (temperature, humidity, and flow rate of air that may be 
passing through the surface). For a ground floor, there probably would 
not be air coming through the surface.

"boundary condition" is a switch that allows you to either set a 
boundary condition (such as the ground/floor interface temperature) or 
to tell Type56 that the conditions on the back side of the boundary is 
the same as the conditions on the font side (i.e. that there is an 
adiabatic surface in the wall/floor/ceiling.

kind regards,

  David


On 07/14/2022 22:36, H via TRNSYS-users wrote:
> Dear all,
>     I have a question.  When I set 1st gournd floor,  what category 
> should I set ( external or boundry) and then what should I set these 
> parameters ？
>
>
> _______________________________________________
> 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 System 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20220718/216ab727/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 529122 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20220718/216ab727/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 19704 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20220718/216ab727/attachment-0003.png>