Re: [EnergyPlus_Support] about double facade

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

Thank you for the input file.  

1.   ** Warning ** Floor Tilt=0.0, much less than expected tilt of 180, for 
Surface=GND DOUBLE FLOOR, in Zone=GND DOUBLE ZONE

These warnings indicate that the floor surfaces are upside down.  Reverse the 
order of the vertices for these surfaces.  The outside surface of roofs and 
ceilings should face up (tilt=0), the oustdie surface of floors should face 
down (tilt=180).

2.     ** Warning ** GetSurfaceData: InterZone Surface Azimuths do not match as 
expected.
   **   ~~~   **   Azimuth=180.0 in Surface=GND DOUBLE N WALL WINDOW, Zone=GND 
DOUBLE ZONE
   **   ~~~   **   Azimuth=180.0 in Surface=GND SOUTH S WALL WINDOW, Zone=GND 
SOUTH ZONE

One of these surfaces is facing backwards.  All surfaces should "face" out from 
the zone.  If I am understanding your model correctly, GND DOUBLE N WALL WINDOW 
should be facing North (azimuth=0).  Again, reversing the order of the vertices 
will correct the problem.  

3.  Add REPORT, Surfaces, Details; to the idf.  The Surface Details report 
appears in the eio output file and lists every surface with area, height, 
width, azimuth and tilt.  This report is essential for verifying geometry 
input.  It is easiest to read in a spreadsheet program.

4.     ** Severe  ** View factors not complete. Probably bad surface 
descriptions in zone="GND DOUBLE ZONE".
   **   ~~~   ** Enforced reciprocity has tolerance (ideal is 0.0)=1.9838
   **   ~~~   ** Enforced value is not within normal convergence tolerance 
(<.0001).

I suspect this error is due to the backwards surfaces in the zone.  Fixing the 
surface descriptions should correct this also.

Mike



On 21 Mar 2006 at 20:41,  wrote:

> hi all
>    
>   i'm beginner of EnergyPlus. so please help me
>    
>   Our zone is multystory. and we combine with double facade. 
>   and When there is no window there are few error but when there are windows
> the error comes to us. I don't know what main error point is . 
>   Anyone who knows that please give me the advice. i give you a idf file.
>    
>   thanks in advance
>    
>    
> 
> 		
> ---------------------------------
> 
> ! FIFA  
> 2006     ! , !FIFA 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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