[Equest-users] How to Change Altitude and Unpopulated LEED Comparision Report

[Joe Huang]

I don't know about eQUEST, because my experience is only with the DOE-2 engine that lies 
behind it, so you should take what I say with a grain of salt.

In DOE-2, the altitude of the building can be either read from the weather file, or input 
separately by the user.  The altitude that's shown on the screen below seems to be taken 
from the weather file, which may be why you can't change it.   Check to see if that's 
true, and if so, check if there's a way for a user input of altitude that overrides what's 
on the weather file.  It is possible to change the elevation on the weather file, but 
since it's a binary (not an ASCII) file, you have to use a couple of utility programs to 
convert to text and then back to binary.  However, I'm leery of large arbitrary changes in 
altitude, like from 3,000 ft in El Paso down to sea level, as you suggest, because the 
weather data would not be right at all. Why can't you just change the weather file to that 
of an appropriate sea level location?

Joe

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


On 4/3/2014 10:04 AM, Jay B. Dyer wrote:
>
> Ladies and Gentlemen of the eQuest user community,
>
> I'm stuck.  It's one of those days where I've been ginning through this model so long 
> that my mind is blank.  I'm hoping someone here has a quick answer.
>
> *ISSUE #1*
>
> Thinking back, the past 20 LEED models or so have been at sea level, lol.  Now we're of 
> in Texas somewhere, and we are not able to edit the red altitude field below, so we 
> adjust for the 1.16 altitude factor eQuest placed on our airflows by lowering in our 
> scheduled airflow.  Now when comparing to a LEED baseline model, the factor reappears 
> and we would like to eQuest to calculate those airflows, so the analysis is skewed.  Our 
> LEED model is reporting higher airflow due to the altitude correction factor.  Now we 
> are back to changing the altitude to 0---but how?  It allows us to type something in but 
> doesn't change the number?  Editing the weather bin file isn't easy either as it's 
> ASCII, and I'd have to research an editor and format.
>
> *ISSUE #2*
>
> My LEED report shows annual energy use but all 0's in the energy breakdown and other 
> normally populated items.  This is a VRV job and only the DOAS is scheduled for 
> airflow.  Will 0's for fan operation make the whatever results the LEED comparison uses 
> blank?  The LEED report isn't mining results, but other detailed reporting is OK.  I'd 
> hate to hand populate the sheet.
>
> The Excel sheet it spits out is attached.
>
> Thanks for the assistance,
>
> Jay Dyer
>
> *James B. Dyer, P.E., LEED AP O+M, CEM*
>
> *Senior Mechanical Engineer*
>
> *IC Thomasson Associates, Inc.*
>
> 622 Vassar St
>
> Orlando, FL  32804
>
> 407.420.9924 -- Direct
>
> 321.287.1701 -- Mobile
>
> www.icthomasson.com <http://www.icthomasson.com/>
>
>
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