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how to estimate air change rate under natural ventilation mode

asked 2015-04-25 02:39:17 -0500

oat's avatar

updated 2015-04-27 11:40:22 -0500

May I ask how to calculate air change rate under natural ventilation mode in OpenStudio, if a fixed air flow rate is not specified for the building?

I asked this because I saw in the following video that DesignBuilder has an option to switch between "scheduled ac/h" and "calculated ac/h" to estimate intensity of natural ventilation:

So, can we do this also in OpenStudio?


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Please remember to add the software you are using to the list of tags. :)

__AmirRoth__'s avatar __AmirRoth__  ( 2015-04-25 09:50:43 -0500 )edit

tag added as suggested.

So, any advice? Thanks!

oat's avatar oat  ( 2015-04-27 11:58:36 -0500 )edit

Do you solve you problem that the calculation of air change rate under natural ventilation mode

Done's avatar Done  ( 2017-05-21 21:33:38 -0500 )edit

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answered 2015-05-04 11:54:49 -0500

Natural ventilation is not yet supported in OpenStudio, however you might want to look into the EnergyPlus object named ZoneVentilationDesignFlowRate. This object is isolated well enough from other objects that it would be a good candidate for an EnergyPlus Measure in OpenStudio.

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noted with thanks, Kyle!

oat's avatar oat  ( 2015-05-14 10:23:07 -0500 )edit

Is there any update on this topic? It looks like that Openstudio 2.7.0, the one I'm using, has the natural ventilation feature. Would be good to learn more about it. Cheers

matteo-g's avatar matteo-g  ( 2018-12-06 17:01:29 -0500 )edit

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Asked: 2015-04-25 02:39:17 -0500

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Last updated: May 04 '15