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Modelling Underfloor Ventilation (UFAD) Systems

asked 2016-04-20 21:07:49 -0500

buddy1187 gravatar image

updated 2016-04-21 07:25:04 -0500

Hello,

I've searched and searched for an answer to my question, but I have not found anything related to this. I am using Sketchup 2016, Open Studio 1.11.0, and latest version of EnergyPlus The building I am modelling has underfloor ventilation systems (with supply diffusers) on the first, second, and third floor. When I am modelling the building shell and spaces, should I physically model the supply and return plenums associated with the Underfloor Ventilation System? Thanks in advance!

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Welcome @buddy1187. I've retagged your question using existing ones and naming conventions. Please always tag your questions with the software you're using. If you haven't already, you can click the "plenum" tag to see all related previous questions.

MatthewSteen gravatar image MatthewSteen  ( 2016-04-21 07:29:38 -0500 )edit

Ok, thank you I will remember that for my next post :)

buddy1187 gravatar image buddy1187  ( 2016-04-21 08:14:48 -0500 )edit

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answered 2016-04-21 10:11:32 -0500

A good place to start looking for answers is to look at the Example Files provided with EnergyPlus.

5ZoneSupRetPlenRAB.idf and 5ZoneSupRetPlenVSATU.idf are meant to illustrate how to model UFAD systems.

Open them up, you'll see that the underfloor plenums are indeed explicitly modeled.

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Thank you for pointing me in the right direction!

buddy1187 gravatar image buddy1187  ( 2016-04-22 14:09:04 -0500 )edit
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answered 2016-04-22 09:26:29 -0500

BL gravatar image

updated 2016-04-22 09:27:04 -0500

IES VE has a clear explanation about how to set up the system and space for UFAD system. Although the software is different from OS, I believe the core idea and heat transfer principals are very similar.

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Helloo Bo,

Thank you very much for your response. It looks like I got some floor shifting to do in my model to put these plenums in!

Jason

buddy1187 gravatar image buddy1187  ( 2016-04-22 14:11:37 -0500 )edit

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Asked: 2016-04-20 21:07:49 -0500

Seen: 433 times

Last updated: Apr 22 '16