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
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@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.
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@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 StudentResearch Team of Thermal, Energy and EnvironmentENSET, Mohammed V University of Rabat
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--
SRHAYRI Imane Ph.D StudentResearch Team of Thermal, Energy and EnvironmentENSET, 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@tess-inc.com http://www.tess-inc.com http://www.trnsys.com