[Bldg-sim] Azimuth in equest

[Shaun Martin]

Hi Joe,

 

I think it's just an internal error in equest.  My building, floor, and
space are all exactly north-south.  The only thing that is off slightly are
the coordinates of the space polygon, which gives me the 91.27 deg angle.
Something for version 3.66, I guess.

 

Shaun

 

 

From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org]  On Behalf Of
Joe Huang
Sent: Tuesday, July 08, 2014 5:25 PM
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Azimuth in equest

 

In eQUEST, there's a further nesting of the coordinates at the FLOOR level,
i.e.,
    Building -> Floor -> Space 
The FLOOR coordinates are particularly important, since the floor footprint
(POLYGON = XXX, SHAPE = POLYGON) defines the origin and azimuth for the
walls.

Joe



Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"


On 7/8/2014 3:10 PM, Jeff Haberl wrote: 

 

 

 Shaun,

 

Also, within DOE-2 simulations there are (3) orientations: the building, the
space and the exterior/interior surface. Hence, you can easily have a -91.27
= northeast if you don't know all (3) orientations. You can see this in the
LV- or verification reports for LOADS. You should be able to see this in the
"viewer" as well (of which there are several).

 

Jeff

 

8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=) 8=?
Jeff S. Haberl, Ph.D.,P.E.inactive,FASHRAE,FIBPSA,......jhaberl at tamu.edu
<mailto:........jhaberl at tamu.edu> 
Professor...................................................................
.....Office Ph: 979-845-6507
Department of Architecture............................................Lab
Ph:979-845-6065
Energy Systems Laboratory...........................................FAX:
979-862-2457
Texas A&M
University...................................................77843-3581
College Station, Texas, USA,
77843..............................URL:www.esl.tamu.edu
8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=)  :=)  8=)  8=!  8=)  8=? 8=) 8=0

  _____  

From: Bldg-sim [bldg-sim-bounces at lists.onebuilding.org] on behalf of John
Aulbach [jra_sac at yahoo.com]
Sent: Tuesday, July 08, 2014 4:53 PM
To: Shaun Martin; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Azimuth in equest

I am going to guess your Ploygon is part of a larger building. When you say
you set the Azimuth of the Polygon, what is the Azimuth of the Building
itself?

 

John R. Aulbach, PE 

 

On Tuesday, July 8, 2014 10:41 AM, Shaun Martin
<mailto:smartin at shaunmartinconsulting.com>
<smartin at shaunmartinconsulting.com> wrote:

 

In equest, SHAPE = POLYGON  determines the x, y, z, azimuth.  Does anybody
happen know why a wall with an azimuth of -91.27 deg would be listed as
NORTH-EAST in the LV-D report?  Is there any easy way to fix this without
redoing all the polygons?  (Specifying the AZIMUTH does not work.)

 

Thanks,

 

Shaun Martin LEED AP

Principal

Shaun Martin Consulting

2060 Pine Street

Vancouver, BC V6J 4P8

P: 604-789-1095

E: smartin at shaunmartinconsulting.com

 


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