[Equest-users] Building Square Footage

[Gaurav Mehta]

Rob/ Pasha,

The kBtu/SF on the BEPS Report and $/SF on ES-D report use the conditioned floor area. Please see the LS-C report that shows the conditioned floor area you are modeling. 

LV-B report does show all the spaces including unconditioned spaces and plenums, but the total area is not used in the summary report.

Without looking at your model, I can only make a guess that you might be modeling the Plenum zones as 'Conditioned'. By the numbers that you have provided:

9,500 SF x( 3 [floors] + 3 [plenums] ) = 57,000 SF subtract any unconditioned spaces and the answer would be ~ 50,000 SF

Please check your inputs for plenum zones under both 'Spaces' and 'Zones' and in both, the 'Zone Type' input should either be 'Unconditioned' or 'Plenum'.

Hope it helps.


Best regards,

Gaurav Mehta
Sustainable Building Analyst
Stantec


From: Pasha Korber-Gonzalez 
Sent: Monday, March 15, 2010 13:40
To: Rob Hudson 
Cc: equest-users at lists.onebuilding.org 
Subject: Re: [Equest-users] Building Square Footage


Hi Rob,

this is a good question and important to understand about how inputs are translated to DOE & reported in the output.

Yes you are right that the summary is accounting for the floor area of the unconditioned spaces as well and the plenum spaces.  If you look at report LV-B, summary of spaces in your project you will find the info you are looking for.

This report is a listing of all the spaces (or thermal zones) in the project.  Theis listing incudes both conditioned spaces as well as unconditioned spaces and plenums.  In reviewing this report, pay special attention to the column labeled "space floor multiplier".  The total area and volume for each space is this value times the area and volume listed in the last two columns.  The building totals row includes the effect of these multipliers, but the area includes plenums and unconditioned spaces as well. 

Pasha


On Mon, Mar 15, 2010 at 2:02 PM, Rob Hudson <rdh4176 at gmail.com> wrote:

  This seems like a silly question, but i would like some input regardless.  My building has three floors, each about 9,500 square feet.  However, the looking at the BEPU and other reports are showing a total utility cost of 110632$ and a $/sqft of 2.25.  this shows a sqft of about 50,000 for the building.  Is this something that i should disregard or is it relevant?  I have also modeled the unconditioned space above each room as a separate space.  Could the program be combining this plenum space into the sqft of the entire building?  Is this plenum sqft affecting the output of the reports?  any help is greatly appreciated.

  -- 
  Rob Hudson

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