[Bldg-sim] How have you approached... (UNCLASSIFIED)
Eurek, John S NWO
John.S.Eurek at usace.army.mil
Wed Jul 20 06:30:56 PDT 2011
Classification: UNCLASSIFIED
Caveats: NONE
Nick,
I would do it with schedules. This would be the long method.
I have the same controls and have not got around to model it. I would also
make many schedules. A different schedule for occupancy, lights, equipment,
ect. Also if this applies to a lot of rooms, you'd likely make multiple
schedules, one assuming that the room is empty from 9~10 another room empty
from 2~3. (The inverse for meeting rooms, if you have multiple meeting
rooms, not all meetings will happen at the same time.)
"Is Freedom a small price to pay to stop Global Warming?"
John Eurek PE, LEED AP
Mechanical Engineer,
-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Nick Caton
Sent: Tuesday, July 19, 2011 3:59 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] How have you approached...
I have a precedent question for everyone... this is not a "how to" procedural
question for any particular software, but to simply feel out what has worked
for others in the past:
Here's a quick description of the situation at-hand: a VAV terminal unit
with a "normal" minimum damper position (say, 30%) is tied by relay to the
space occupancy sensor, which also controls the lights. Upon sensing space
vacancy, the minimum airflow damper position is reset to 0% (airflow is
permitted to stop, provided thermostat temperature set point is satisfied).
Upon sensing occupancy, the preset minimum damper position is restored.
For LEED/USGBC-reviewed energy models, can anyone relate success in modeling
this or a similar energy-saving behavior in the proposed model, distinct from
the baseline? If so, what approach did you use to model this behavior and/or
quantify the energy savings?
I was discussing the possibilities with some colleagues and have a few ideas
for approaches that might all be justifiable, ranging from simple (and quick)
to complex (and time-consuming).
There are likely multiple "right" answers here, but I am hoping to identify
some precedent to understand what we can anticipate the LEED reviewership
will accept.
Thanks in advance!
~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
Classification: UNCLASSIFIED
Caveats: NONE
More information about the Bldg-sim
mailing list