[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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