[Bldg-sim] Azimuth in equest
Joe Huang
yjhuang at whiteboxtechnologies.com
Wed Jul 9 10:22:32 PDT 2014
Shaun,
Can you send me the DOE-2.2 input file (*.bdl)? I can then run it
through my converter and tell you what are the geometry inputs, i.e., X,
Y, Z, AZIMUTH, HEIGHT, WIDTH, TILT actually being fed to DOE-2.
Joe
On 7/9/2014 10:16 AM, Shaun Martin wrote:
>
> Hi Joe,
>
> I used the design development wizard.
>
> The wall in question (highlighted) runs from V8 to V9 of the space
> polygon which reads
>
> "L1Space Polygon 7" = POLYGON
>
> ....
>
> *V8 = ( 58.75, 0.2 )*
>
> *V9 = ( 58.85, -4.3 )*
>
> ....
>
> ..
>
> There is a slight difference in the x-coordinates (thus the -91.27 deg
> azimuth). The building azimuth is 180, the floor azimuth is 360, and
> the space azimuth is 0.
>
> Not a single wall in the model faces anything but N,S,E, or W. Yet
> this is what LV-D says -
>
> REPORT- LV-D Details of Exterior Surfaces WEATHER FILE- Vancouver UBC
> BC CWE
>
> --------------------------------------------------------------------------------------------------------------(CONTINUED)--------
>
> AVERAGE AVERAGE AVERAGE U-VALUE WINDOW
> WALL WINDOW+WALL
>
> U-VALUE/WINDOWS U-VALUE/WALLS WALLS+WINDOWS
> AREA AREA AREA
>
> (BTU/HR-SQFT-F) (BTU/HR-SQFT-F) (BTU/HR-SQFT-F)
> (SQFT) (SQFT) (SQFT)
>
> NORTH 0.448 0.068 0.232
> 3414.63 4485.27 7899.90
>
> *NORTH-EAST 0.452 0.056 0.091
> 111.38 1160.47 1271.84*
>
> EAST 0.448 0.062 0.181 1216.56
> 2728.27 3944.83
>
> *SOUTH-EAST 0.446 0.070 0.236
> 546.31 692.69 1239.00*
>
> SOUTH 0.449 0.060 0.194 2761.19
> 5207.64 7968.83
>
> *SOUTH-WEST 0.441 0.061 0.092
> 133.63 1507.97 1641.60*
>
> WEST 0.448 0.057 0.133 698.31
> 2891.18 3589.49
>
> FLOOR 0.000 0.058 0.058 0.00
> 8491.38 8491.38
>
> ROOF 0.000 0.155 0.155 0.00
> 22078.09 22078.09
>
> ALL WALLS 0.448 0.062 0.186 8882.00
> 18673.50 27555.50
>
> WALLS+ROOFS 0.448 0.113 0.173
> 8882.00 40751.58 49633.59
>
> UNDERGRND 0.000 0.057 0.057 0.00
> 18498.49 18498.49
>
> BUILDING 0.448 0.091 0.132 8882.00
> 67741.46 76623.46
>
> And, even more puzzling, here are some other walls -
>
>
>
> LV-C
>
>
>
> LV-D
>
>
>
> AZIMUTH
>
>
>
> Note: building is rotated 180 deg.
>
> SURFACE
>
>
>
> (DEG)
>
>
>
> L1North Wall (G.NNE2.E13)
>
>
>
> 2.0
>
>
>
> SOUTH-EAST
>
> L1North Wall (G.W4.E17)
>
>
>
> 0.0
>
>
>
> SOUTH
>
> T1East Wall (G.E4.E14)
>
>
>
> -0.4
>
>
>
> SOUTH-WEST
>
>
>
>
> L1West Wall (G.NNE2.E4)
>
>
>
> -87.9
>
>
>
> EAST
>
> L1West Wall (G.NNE2.E8)
>
>
>
> -88.0
>
>
>
> NORTH-EAST
>
> L1West Wall (G.W4.E16)
>
>
>
> -90.0
>
>
>
> EAST
>
> T2East Wall (G.NE1.E9)
>
>
>
> -90.4
>
>
>
> SOUTH-WEST
>
>
>
>
> L1East Wall (G.C3.E14)
>
>
>
> -180.0
>
>
>
> SOUTH-WEST
>
> T2North Wall (G.NE1.E2
>
>
>
> -180.0
>
>
>
> SOUTH
>
>
>
>
> T1South Wall (G.E4.E13)
>
>
>
> -269.5
>
>
>
> NORTH
>
> L1East Wall (G.S7.E33)
>
>
>
> -270.0
>
>
>
> WEST
>
> I just hope this is a LV-D problem only and doesn't affect the solar
> and wind calculations.
>
> Shaun
>
> *From:*Joe Huang [mailto:yjhuang at whiteboxtechnologies.com]
> *Sent:* Tuesday, July 08, 2014 9:55 PM
> *To:* Shaun Martin; bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] Azimuth in equest
>
> Shaun,
>
> I don't use eQUEST, but I have converted DOE-2.2 input files to
> DOE-2.1E, and have never seen any problems with the building geometry
> once the correct transpositions have been done with the multiple
> coordinate systems.
>
> How did you input the floor polygon? Could that be the cause for this
> discrepancy? What is the actual azimuth for
> the wall in the global coordinate system, anyway?
>
> Joe
>
>
> On 7/8/2014 9:41 PM, Shaun Martin wrote:
>
> 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
> <mailto: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 <mailto: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
> <mailto:bldg-sim-bounces at lists.onebuilding.org>] on behalf of John
> Aulbach [jra_sac at yahoo.com <mailto:jra_sac at yahoo.com>]
> *Sent:* Tuesday, July 08, 2014 4:53 PM
> *To:* Shaun Martin; bldg-sim at lists.onebuilding.org
> <mailto: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
> <smartin at shaunmartinconsulting.com>
> <mailto: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/
> <mailto:smartin at shaunmartinconsulting.com>
>
>
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