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How to introduce natural ventilation in openstudio taking into consideration the outdoor temperature

asked 2020-08-20 06:50:04 -0500

Mosta's avatar

updated 2020-08-20 07:44:52 -0500

I need to introduce in my simple building project the natural ventilation whenever the outside temperature permits that.

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answered 2020-08-20 08:52:22 -0500

The best way to model natural ventilation that is controlled by outside temperature limits in OpenStudio is by using the Add Wind and Stack Open Area measure. See a screenshot below of inputs for this measure.

image description

Since this is an EnergyPlus measure, you will only see its impacts on the simulation after you run a simulation.

For more context, you can read a similar post here asking about natural ventilation modeling in OpenStudio, and a post here and here about the measure.

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answered 2021-01-14 14:48:45 -0500

With recent openstudio/openstudioapplication (anything based on OpenStudio >= 3.0.0), you can directly use the ZoneHVAC:WindAndStackOpenArea by dragging and dropping from the Library onto your ThermalZone:

image description

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Realized it's missing an icon, so opened to fix it. Help welcome.

Julien Marrec's avatar Julien Marrec  ( 2021-01-14 14:52:34 -0500 )edit

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Asked: 2020-08-20 06:50:04 -0500

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Last updated: Jan 14 '21