[Bldg-sim] 90.1 Occupancy
RobertWichert
robert at wichert.org
Thu Jan 10 16:27:53 PST 2013
Thanks guys! I appreciate the input.
Robert Wichert
=============================================
On 1/10/2013 2:01 PM, Dennis Knight wrote:
> Robert,
> Nick is right on.
> Two more schedule resources for energy models are:
> 1. The COMNET Commercial Building Energy Modeling Guidelines and
> Procedures available online at: http://www.comnet.org/. The schedules
> in this document are identical to and taken directly from the ASHRAE
> 90.1 User's Manual.
> 2. The U.S. Department of Energy Commercial Reference Building Models
> of the National Building Stock produced by NREL. They can be obtained
> from the following link: http://www.nrel.gov/docs/fy11osti/46861.pdf.
> The schedules are found in Appendix B of this document and were
> developed from resources as far back as 90.1-1989. The schedules
> include several extended building sizes and types not included in
> 90.1. The notes say some of the schedules have been modified based on
> NREL's research, experience and judgement.
> Finally, I would take the recommendation of Nick one step further and
> try to get agreement from the Owner on things like operating and
> occupancy schedules in an OPR type of document or something.
> Especially if you are trying to make an estimate of future energy
> cost/consumption which is not always a good idea without some kind of
> disclaimer.
> Hope this helps, good luck,
> Dennis
>
> On Thu, Jan 10, 2013 at 4:18 PM, Nick Caton <ncaton at smithboucher.com
> <mailto:ncaton at smithboucher.com>> wrote:
>
> Hi Robert!
>
> If you mean scheduling for lighting and/or occupancy, 90.1 does
> not strictly require anything. You can use whatever makes sense
> for the building so long as you are matching between baseline and
> proposed.
>
> That said, if you are uncomfortable developing your own scheduling
> and/or are looking for guidance, ASHRAE has published out
> schedules of this nature that the 90.1 User's manual references.
> They are a series of tables from 90.1-1989 for different building
> occupancy types (School/Warehouse/etc). None of these building
> types is "4-story dorm," but you could likely reference "Hotel"
> and/or "health/institutional." If you don't have 90.1-1989 handy
> on your shelves, I know these schedules are freely available
> incorporated as part of the Washington State Energy Code (2009),
> and possibly other places.
>
> It's probably worth mentioning the mechanical designer (where
> applicable) is probably the most defensible source for any
> project-specific scheduling. I don't always feel it's a
> requirement, but getting the mechanical designer's input in
> writing for any scheduling you're unsure of is always a safe bet.
>
> It's also worth mentioning the schedules generated in a weighted
> occupancy fashion by eQuest (which I think you're referencing)
> have in my experience gone largely unchallenged over many LEED
> projects. The results are often quite reasonable when you do not
> have anything more specific to reference. If I recall correctly
> some time ago, discussions across one of these mailing lists
> revealed the schedules "under the hood" used for each occupancy
> type are in fact referencing ASHRAE-based sources/research.
>
> Regards,
>
> ~Nick
>
> NICK CATON, P.E.
> SENIOR ENGINEER
>
> Smith & Boucher Engineers
> 25501 west valley parkway, suite 200
> olathe, ks 66061
> direct 913.344.0036 <tel:913.344.0036>
> fax 913.345.0617 <tel:913.345.0617>
> www.smithboucher.com <http://www.smithboucher.com>
>
>
> -----Original Message-----
> From: bldg-sim-bounces at lists.onebuilding.org
> <mailto: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
> RobertWichert
> Sent: Thursday, January 10, 2013 9:49 AM
> To: bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>
> Subject: [Bldg-sim] 90.1 Occupancy
>
> Does anybody know off the top what the ASHRAE 90.1 Lighting
> Occupancy is for High/Mid (four story) Residential Apartment/Dorm
> (private baths)??????
>
> I'm using "Building Area Multi-Family" now, but I'm not sure
> that's right, and I can't find anything better.
>
> Hoping for a better answer....
>
>
> Thanks!
>
>
>
> --
> Robert Wichert P.Eng. LEED AP BD&C
> +1 916 966 9060 <tel:%2B1%20916%20966%209060>
> FAX +1 916 966 9068 <tel:%2B1%20916%20966%209068>
>
>
>
>
>
>
>
> ===============================================
>
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>
> --
> M. Dennis Knight, P.E.
> Founder & CEO
> *W*hole *B*uilding *S*ystems, LLC
> P.O. Box 1845
> Mt. Pleasant, SC 29465
> Phone: 843-437-3647
> Email: dknight at wholebuildingsystems.com
> <mailto:dknight at wholebuildingsystems.com>
> Website: www.wholebuildingsystems.com
> <http://www.wholebuildingsystems.com>
>
--
Robert P Wichert P.Eng. Inc.
LEED AP, HERS II, CEPE
+1 916 966 9060
FAX +1 916 966 9068
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