[Bldg-sim] Addition, or Separate Building?

[Nick Caton]

I'm seeing enough typos in my last reply to warrant a re-issue (following)... sorry for any confusion!

I agree completely.

Let the scope/purpose of your modeling efforts determine whether modeling both buildings as one model is going to be preferable.  90.1 leaves this kind of decision up to the modeler.

>From my experience, the extra work entailed in properly setting up (and documenting) a representative "campus" plant can easily become more work than simply modeling both buildings. If you intend to address efficiency measures applied or unique to both buildings, I expect it will be more efficient and simpler to work within a unified project.

Best regards,

~Nick

[cid:489575314 at 22072009-0ABB]

NICK CATON, P.E.
SENIOR ENGINEER

Smith & Boucher Engineers
25501 west valley parkway, suite 200
olathe, ks 66061
direct 913.344.0036
fax 913.345.0617
www.smithboucher.com

From: bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of David Eldridge
Sent: Tuesday, December 10, 2013 10:30 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: Re: [Bldg-sim] Addition, or Separate Building?

90.1 is flexible to model only one building or as a combined building, the determinant is what the client's purpose is in deciding to have an energy model project completed.

You could obviously model the whole complex with the specific central plant equipment, or else a single building could be modeled using district energy sources for heating and cooling depending on what the goal was for the study.

David


David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP
Grumman/Butkus Associates



From: bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Christian Kaltreider
Sent: Tuesday, December 10, 2013 10:09 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: [Bldg-sim] Addition, or Separate Building?

Hello Group,

I am modeling an existing building which could be seen as two buildings connected by a short hallway.  The quick story on this facility is that there were two buildings which were connected by hallways at some point, and are now on the same chilled and hot water systems. I'm having trouble finding a clear definition in 90.1 which tells me whether I should be modeling this as one building or two with a shared energy plant.  This is not a LEED project; I am only interested in a 90.1 interpretation.

Does anyone know of any clarifications, interpretations, or past experience which could help guide me?

Thanks,
Christian
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