[Bldg-sim] TRACE modeling question - Heating Only

[Demba Ndiaye]

I think that requirement G3.1 (10-d):

                "Where  no cooling system exists or no cooling system has been specified, the cooling system shall be identical to the system modeled in the baseline building design"

plays also.

_______________
Demba NDIAYE

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Bishop, Bill
Sent: Tuesday, May 18, 2010 10:45 AM
To: Fareed Syed; Snarski, Marty; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] TRACE modeling question - Heating Only

Marty,

I usually model heating-only systems in my proposed model as PTAC systems for Appendix G. I use a high cooling thermostat temperature in the proposed and baseline models to minimize cooling energy in those spaces.

Regards,
Bill

William Bishop, EIT, BEMP, LEED(r) AP | Pathfinder Engineers & Architects LLP
Mechanical Engineer

134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
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wbishop at pathfinder-ea.com
www.pathfinder-ea.com
P May is National Bike Month. Bike to Work Day May 21st.
________________________________
From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Fareed Syed
Sent: Tuesday, May 18, 2010 10:36 AM
To: Snarski, Marty; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] TRACE modeling question - Heating Only

In my past experience, I had assigned those heated only spaces to VAV systems for the baseline model. I think that's the most appropriate way of complying Appendix G. And this way it went through without any comments from the reviewer.

Thanks,

Fareed

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Snarski, Marty
Sent: Tuesday, May 18, 2010 10:34 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] TRACE modeling question - Heating Only

Hello, everyone.

I've got a question that I've never been clear on and figured I'd turn to the experts (you all).

In appendix G, Table G3.1.1b, it's stated that all conditioned spaces shall be modeled as being both heated and cooled, even if no cooling systems exists, for both the proposed and baseline buildings.

We typically place Cabinet Unit Heaters in stairways and vestibules, and don't worry about cooling those spaces.  So, my question is, though TRACE has a couple "Heating only" systems options, Appendix G says that these cannot be selected.  So, what is a common solution?  The other systems in the building are VAV, so, can those spaces just be grouped on to there?

Thanks for any advice you'd have!


Martin Snarski   LEED(r) AP
Mechanical Engineer

SHWGROUP


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