[Bldg-sim] Exterior Gas Powered Torches

Bishop, Bill wbishop at pathfinder-ea.com
Thu Sep 16 11:02:05 PDT 2010


Chris,
 
My understanding of the intent of ASHRAE Standard 90.1 and LEED EAc1 is
that all building energy is to be included, so the energy needs to be
accounted for. I don't think you can exclude it just because it is
exterior to the building. You don't exclude other exterior features like
lighting and snow melt systems. I would consider an exterior gas-powered
decoration as either a process load, or an exterior lighting load. If it
is exterior lighting, the project may exceed the exterior lighting power
allowance (90.1 Section 9.4), which is a prerequisite. (Editorial
comment - If I worked on the project, I would take this approach to try
to get the torches removed, since I find the prospect of gas powered
decorations silly for any building, especially a LEED project.) If you
treat them as a process load, then you put the same load in baseline and
proposed. I think you have to include them if they fall within the LEED
project boundary, since all building energy use is supposed to be
covered.
 
Regards,
Bill
 
William Bishop, PE, BEMP, LEED(r) AP | Pathfinder Engineers & Architects
LLP
Mechanical Engineer
 
134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
F: (585) 325-6005
wbishop at pathfinder-ea.com
www.pathfinder-ea.com
P Sustainability - less is more.
________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Carol
Gardner
Sent: Thursday, September 16, 2010 1:36 PM
To: Chris
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Exterior Gas Powered Torches
 
I think I'd tend not to include it but in any case it would be the same
in either the proposed or baseline, a good reason not to include it.

Carol
On Thu, Sep 16, 2010 at 10:17 AM, Chris <floodyc at gmail.com> wrote:
Our proposed design has exterior gas powered flame-torches for
decorative purposes.
The energy consumption of these torches could be significant compared to
the building energy consumption as it is quite a small building.
Has anyone had experience with this design from a LEED perspective. Does
it need to be included in the LEED model?
The preference is that it does not need to be included considering the
high energy consumption.

-- 
Chris Flood BSc (Eng)
Senior Building Analyst & Energy Modeller

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-- 
Carol Gardner PE
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