[Bldg-sim] ASHRAE 90.1 building rotation reasoning
Robby Oylear
robbyo at rushingco.com
Tue May 12 11:05:29 PDT 2009
I think you’re mistaken. You may be thinking of addenda a which removes
the requirement to spread all glazing equally across all orientations of the
building. Which addenda removes the requirement to rotate your building?
Robby Oylear, LEED® AP
Mechanical Engineer
direct: 206.788.4571
cell: 206.354.2721
www. <http://www.rushingco.com/> rushingco.com
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Cramer
Silkworth
Sent: Tuesday, May 12, 2009 11:02 AM
To: christopher.zabaneh at ibece.net
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] ASHRAE 90.1 building rotation reasoning
Christopher,
One of the addenda to 90.1 removes this requirement and the use of addenda
is accepted by USGBC, so you don't need to waste your time.
-Cramer
J. Cramer Silkworth
Transsolar Inc.
Technical consulting for energy efficiency and user comfort in buildings.
Stuttgart - Munich - New York
134 Spring Street Suite 601
New York, NY 10012
212-219-2255
silkworth at transsolar.com
_____
From: Christopher Zabaneh [mailto:christopher.zabaneh at ibece.net]
Sent: Tuesday, May 12, 2009 1:33 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] ASHRAE 90.1 building rotation reasoning
What is the original reasoning behind the ASHRAE 90.1 Appendix G building
rotations through 0, 90, 180 and 270 degrees?
If the building is only going to have one orientation, why go through the
trouble of rotating and averaging the building values when there should be
only one base case?
Are steps being taken by ASHRAE or the energy modeling community to change
this?
Thanks kindly,
Christopher F. Zabaneh
B.Sc.Eng, LEED® AP
IBE Consulting Engineers
14130 Riverside Drive, Suite 201
Sherman Oaks, CA 91423-2313
p (818) 377-8220 X 295
f (818) 377-8230
<http://www.ibece.com/> IDEAS FOR THE BUILT ENVIRONMENT
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