[Bldg-sim] Modelling UFAD for LEED

Nathan Kegel nathan.kegel at iesve.com
Wed Oct 12 14:39:59 PDT 2011


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From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris Yates
Sent: Wednesday, October 12, 2011 4:14 PM
To: jai yadav
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Modelling UFAD for LEED


Jai
You should use e+ for this kind of analysis. It has a couple of stratified zone models to choose from without the need to fudge some kind of "plenum".
Kind regards
Chris
On 12 Oct 2011 13:35, "jai yadav" <jaivardhany at yahoo.com<mailto:jaivardhany at yahoo.com>> wrote:
Dear Energy Simulators

I have to model Under Floor Air Distribution (UFAD) for one of LEED projects. I went through the document at the link http://www.energydesignresources.com/media/2654/EDR_DesignGuidelines_%20HVAC_Simulation.pdf to model UFAD in eQUEST. The major assumption in this method to model UFAD is to create a plenum zone, to model the effect of a thermally stratified zone above the occupied zone, and transfer a fraction of People (25%), Lighting (33%) and Equipment (33%) loads in that zone.

Is this method to model UFAD acceptable for simulations carried out to show LEED compliance? Has anyone else used this method before? Or is there any other method to model UFAD?

Your comments would be highly appreciated. Thanks in advance.

Regards
Ethen

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