Re: [EnergyPlus_Support] BLAST buiding geometry data generation

["Michael J. Witte" <mjwitte@xxxxxxxx>]

There are no known problems with the HBLC geometry data, but I have some 
suggestions or explanations which might help.  (Thanks to help from an unnamed 
BLAST/HBLC expert!)

1.  The default roof and floors which are added to non-rectangular zones may be 
causing some confusion.  HBLC will put an equivalent area roof surface above 
the zone and another equivalent surface as the floor.  This allows the user to 
put in complex looking wall geometries and HBLC to determine the correct 
roof/floor area and enter in the one rectangular equivalent surface.   

The user can go into HBLC double-click on the roof and bring up the roof/floor 
input screen.  Then uncheck the auto calculation and then enter the coordinates 
for the roof and floors by hand to explicitly place them geometrically correct. 
 But I would not do this until all of the zones have been inputted.  

2.  Zone origins are 0,0,0 unless the user moves the zone away from the corner 
of the drawing palette.  Then the zone origin will have some arbitrary value 
per the location on the screen.  But that should not be a problem, the surface 
coordinates should be correct.

Mike


On 12 Apr 2007 at 14:32, aboyemeplus wrote:

> 
> 
> Hi everyone,
> 
> I am trying to use BLAST's user interface (HBLC) to generate 
> building geometry data to be translated into EnergyPlus input file. 
> While the data translation works out fine, I am having problems 
> reconciling the visual geometry in HBLC with the corresponding zone 
> and wall coordinates indicated in the ".BS" and ".BIN" files.  In 
> other words, what I see on the HBLC screen is totally different from 
> what is generated in terms of coordinates, especially when it comes 
> to defining zone origins. As a result, I am ending up doing time 
> consuming editing of the "BIN" file before translating the data into 
> EnergyPlus. 
> I realize that this is not an EnergyPlus issue, but I'd really 
> appreciate help from anyone with BLAST experience.  I was unable to 
> find much information regarding the use of the GUI in the BLAST 
> documentation. 
> 
> Thank you in advance for your support.
> 
> Merid 
> 
> 
> 
> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
> 
> Attachments are not allowed -- please post any files to the appropriate folder
> in the Files area of the Support Web Site.
> 
> EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the
> Documentation link and press the "search" button.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 


========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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