[TRNSYS-users] Sketchup Trnsys 3D

[David BRADLEY]

Imane,

   How you handle stairs will depend a bit on the building. In larger 
buildings that have a stairwell then I would model the stairwell as one 
(or perhaps a few) zones stacked vertically. I would not bother to draw 
the doors that lead between the stair well and the rest of the building; 
I would let Type56 treat them as wall area.

   If you are dealing with a residential building and the stairs are 
open then energy will transfer more by natural convection than by 
conduction. TRNSYS by itself does not model the up and downflowing air 
through a stairway so you'd need to implement either a TRNFlow or a 
CONTAM model in order to assess the quantity of air transfer.

   When I have had to deal with open stairs, I have modeled the opening 
between floors as a massless surface with a very low thermal resistance 
and have defined a coupling air flow rate. The air flow rate is then 
calculated by CONTAM (Type97) and is passed to Type56, which in turn 
passes the upstairs and downstairs temperatures back to Type97.

kind regards,

  David


On 04/21/2020 05:55, Imane Srhayri via TRNSYS-users wrote:
> Thank you very much for your answer, i have already seen this video 
> but i need a complete model whith several floors and how to include 
> stairs.
>
> Kind regards
>
> Le lun. 20 avr. 2020 à 09:58, Alexander Schneider via TRNSYS-users 
> <trnsys-users at lists.onebuilding.org 
> <mailto:trnsys-users at lists.onebuilding.org>> a écrit :
>
>     Hello,
>
>     I know that there are some videos on YouTube how to create an
>     model for TRNSYS using sketchup.
>     For example this one is in spanish but it’s good to follow, even
>     if you do not speak Spanish.
>
>     https://youtu.be/qUCejwGUl-k
>
>     Also in the folder: documentation from trynsys, you can find
>     tutorials that are good to follow and are good to start with and
>     to understand the program. There is also a explanation how to use
>     Sketchup with TRNSYS.
>
>     Best regards
>
>
>>     Am 19.04.2020 um 21:17 schrieb Imane Srhayri via TRNSYS-users
>>     <trnsys-users at lists.onebuilding.org
>>     <mailto:trnsys-users at lists.onebuilding.org>>:
>>
>>     
>>
>>     Hello,
>>
>>     Please i need some help about the Trnsys 3D model in sketchup.
>>     should we include all the zones( including stairs)
>>
>>     And where can i find an exemple of drawing a Sketchup model (video)?
>>
>>     Sincerly yours.
>>
>>     -- 
>>     /*SRHAYRI Imane**Ph.D Student */
>>     /*Research Team of Thermal, Energy and Environment*/
>>     /*ENSET, Mohammed V University of Rabat*/
>>     /**/
>>     _______________________________________________
>>     TRNSYS-users mailing list
>>     TRNSYS-users at lists.onebuilding.org
>>     <mailto:TRNSYS-users at lists.onebuilding.org>
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>
>
> -- 
> /*SRHAYRI Imane**Ph.D Student */
> /*Research Team of Thermal, Energy and Environment*/
> /*ENSET, Mohammed V University of Rabat*/
> /**/
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

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

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