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Modeling buoyancy between a lower floor and an upper floor in EnergyPlus

asked 2022-11-14 17:06:17 -0600

sajithwjay's avatar

updated 2022-11-15 08:05:07 -0600

Is there a module/object in EnergyPlus that models buoyancy effect from floor to floor. That is warm air moving from the lower floor to the upper floor?

Thank you in advance.

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answered 2022-11-16 08:02:36 -0600

marceloso's avatar

You can model buoyancy effect using the object "AirflowNetwork:MultiZone:Component:HorizontalOpening". According to the Input Output Reference, "The airflow across the opening consists of two types of flows: forced and buoyancy. The forced flow is caused by the pressure difference between two zones, while the buoyancy flow only occurs when the air density in the upper zone is greater than the air density in the lower zone. This opening also allows for the possibility of two-way flow when forced and buoyancy flows co-exist." This object must be linked to a FenestrationSurface:Detailed object.

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Asked: 2022-11-14 17:06:17 -0600

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Last updated: Nov 16 '22