How to assign a wall as an internal wall

asked 2017-04-20 07:32:12 -0600

Samiul
21 ●4

updated 2017-04-20 08:33:17 -0600

I have a simple rectangular room. I want it's south and east walls to be designated as internal wall, e. g, no exposure to outside. If rendered by boundary condition, they should look green I guess. Please help me do it. thanks

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answered 2017-04-20 09:20:52 -0600

Adam Hilton

3465 ●1 ●15

If you're just modeling one space that's part of a larger building you should assign the walls that contact another space in reality to Adiabatic. An Interior boundary condition also requires the input of the surface of another space.

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Hi Adam, Sounds perfect, can you please guide me how to assign a wall Adiabetic in OpenStudio?

Samiul ( 2017-04-22 14:07:56 -0600 )edit

Hello,

Select the surface you want to make Adiabatic in SketchUp
Go to 'Show Object Info Window'
In 'Object Info' -- go to 'Outside Boundary dropdown menu --- change to Adiabatic

Hope this helps!

The Architecture Gazette ( 2018-03-26 06:10:49 -0600 )edit

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answered 2017-04-20 09:19:56 -0600

Tim Johnson
617 ●1 ●9

If it is a small number of surfaces, you can pick the shared surface from the adjacent space in the "Outside Boundary Condition Object" in the OpenStudio Inspector tool. That will change the outside boundary condition from outdoors to surface.

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Sounds good, I'll try it. Does it effectively assign the wall as adiabetic?

Samiul ( 2017-04-22 14:32:13 -0600 )edit

If you use the surface matching tool or pick the shared surface as I described, E+ will allow heat to transfer between zones. If you really want these walls to be adiabatic, you can choose the adiabatic construction in the OpenStudio Sketchup plugin. Be aware that there is no default adiabatic construction in OpenStudio, so you will need to define a construction type. I recommend matching surfaces and not using adiabatic walls between every space, but the adiabatic option may speed up your run times.