[Equest-users] Can you use eQuest for PMV calculations?

[Joe Huang]

This is a topic that I have explored.  Although DOE-2 (the core engine for eQUEST) does 
not explicitly solve for the inside surface temperatures, researchers at EMPA in 
Switzerland back in the late 90's added a routine to DOE-2.1E to back-calculate the inside 
surface temperatures (think of it as doing a heat balance calculation in reverse).  This 
featured is documented in DOE-2.1E update package 2 (version 107), but I only have a hard 
copy of the report.   In 2003, I used this feature to do exactly what Jason is asking, 
i.e., calculate
the PMV for naturally ventilated buildings in Egypt.  Recently, I've also used the same 
feature to estimate the amount of radiant heat
transfer from attics to the conditioned space, something that is ignored in the weighting 
factor model in DOE-2.

The bad news, though, is that this feature has not been carried over from DOE-2.1E to 
DOE-2.2, although I've had some discussions
with members of the development team about resurrecting it.

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
www.whiteboxtechnologies.com
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"


On 4/11/2012 3:42 PM, Alex Krickx wrote:
>
> Hi Jason,
>
> I'm under the impression that eQUEST can't output surface temperatures which are needed 
> to calculate PMV values.
>
> I think an EnergyPlus based program might be a better place to look. I would ask on the 
> Bldg-Sim list for recommendations as it has a broader user-base (this list is eQUEST 
> specific).
>
> Good luck,
>
> Alex
>
> Alex Krickx, LEED AP
>
> Building Energy Specialist
>
> Serious Energy, Inc.
>
> 1250 Elko Dr, Sunnyvale, CA 94089
>
> (t) 408.541.8124
>
> akrickx at seriousenergy.com
>
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> *From:*equest-users-bounces at lists.onebuilding.org 
> [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Jason Quinn
> *Sent:* Wednesday, April 11, 2012 3:36 PM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] Can you use eQuest for PMV calculations?
>
> Is it possible to use an eQuest model to do thermal comfort PMV (Predicted Mean Vote) 
> calculations per ASHRAE 55/RP884?
>
> If not are there any recommendations?
>
>
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