[Equest-users] Maximum spaces/zones in v 3.63?

[Pasha Korber-Gonzalez]

Hi James,

I can't confirm for you your question about allowable zones, but I did want
to offer a couple of cents from my perspective...I hope that you are not
planning to zone each space for each floor.  This is what I call a
simulation nightmare--primarily for you as the simulator, but also for
anyone who is or will be reviewing your model.

The zones are specifically thermal zones, so where you have alike thermal
characteristics you can zone these spaces together as one zone.  Be mindful
of zoning like spaces, but different perimeter exposures--for example you
should not create a thermal zone that has both an east & south perimeter
exposure because of the envelope loads that are experienced by these
differing exposures.

Always try to simplify your models to work with as few zones as
possible--from an input & file management standpoint.  Remember the more
inputs you have, the more you open the door for variable errors in your
file.  Sometimes the fewest possible zones might be in the 100's, or in the
10's range, but I personally would question any model that used more than
1000 zones for anything unless there were extenuating circumstances.

If you'd like some extra assistance or suggestions for your thermal zoning
approach & input into eQuest, please contact me and send me some pdf's of
your floor plans and I would be happy to help you.

Pasha

On Tue, Mar 23, 2010 at 11:44 AM, James Hansen <JHANSEN at ghtltd.com> wrote:

>  For those also subscribed to the bldg-sim list, you may have just seem
> Eric Sturm’s email with an updated spreadsheet comparing DOE2, eQuest, Trace
> and HAP.
>
>
>
> I don’t think it’s up-to-date for eQuest, but something on the list scared
> me.  eQuest isn’t still limited to 1024 zones is it?
>
>
>
> I’m working on a 19 story building with 100+ spaces per floor, and I’m
> hoping this isn’t still the case.  I thought I remember seeing that since
> version 3.37, you’re allowed to have something like 4000 spaces.
>
>
>
> Can anyone confirm?  Would really suck to get ¾ of the way thru my model
> and realize I have to cut back on zoning.
>
>
>
> Thanks!
>
>
>
> *GHT Limited
> **James Hansen**, PE, LEED AP*
>
> *Senior Associate***
>
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>
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> * *
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>
>
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