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Re: [TRNSYS-users] Modelling of a flat below the ground



Toni,

 You do not need to draw the cellar below the 0 level in SketchUp. You will need to specify in SketchUp/Trnsys3d that your cellar walls and floor are BOUNDARY walls and choose a variable name for the temperature on the outside of those surfaces.

kind regards,

 David


On 02/26/2021 05:04, Toni Calabrese via TRNSYS-users wrote:

Hi,

I have a question. I am modelling a MFH in SketchUp and I need to model the cellar. The cellar is (of course) below the ground, but I do not understand how Trnsys will recognize that the cellar is below the ground (i.e. not directly hit by the solar radiation). Here my questions:

1)     Need I to draw the cellar below the "0" level in SketchUp? In SketchUp "-1m" means that I am drawing a flat 1 m below the ground?

2)     Or need I simply to specify in TRNBUILD that the wall is a boundary wall (T ground) and automatically TRNSYS recognize that the wall is not hit by the solar radiation?

 

Thanks a lot and a nice afternoon.

 

 

 


Toni Calabrese, MSc.

Wissenschaftlicher Projektleiter

toni.calabrese@spf.ch | toni.calabrese@ost.ch

 

T +41 58 257 4827

 

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