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Air boundary condition in energyplus

asked 2021-09-04 13:36:12 -0500

Sina Roozbahani's avatar

updated 2022-12-02 09:29:17 -0500

Hello, I wanted to ask a question about the air boundary condition. Does anybody know how the heat balance equation is written in a zone for the geometries, that use air boundary? Is the temperature jump between two neighbor zones is reasonable? do we have convection between two neighbors, when we use the air boundary? I mainly want to know if the two neighbor zones are separated by air boundary material are assumed as two zones separated by fully transparent glass or they are for example separated by air jet?

Best, Sina Roozbahani

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@Sina Roozbahani what simulation tool are you using? Please add a tag for it, as well as mention it in your title and/or post so that others can provide better help.

Aaron Boranian's avatar Aaron Boranian  ( 2021-09-06 08:49:48 -0500 )edit

I am using energy plus.

Sina Roozbahani's avatar Sina Roozbahani  ( 2021-09-06 09:31:03 -0500 )edit

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answered 2023-04-11 15:12:51 -0500

This would depend on the "Air Exchange Method" field (of the AirBoundary Construction object), and/or whether a ZoneMixing or ZoneCrossMixing object has been defined. There's a nice overview here as well.

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Asked: 2021-09-04 13:36:12 -0500

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Last updated: Apr 11 '23