Re: [EnergyPlus_Support] Calculated Relative Humidity out of range

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

The warning limits were tightened for some of the psychrometric routines in 
version 2.1.  This would explain why you did not see the warnings in version 
2.0.  In this case, the warning can probably be ignored, because the original 
value of 101% relative humidity is a small error.  If you see warnings with 
values significantly out of range or if there are many such errors, then it may 
be important to figure out how to fix it.

Mike


On 25 Dec 2007 at 23:37, thaisarquiteta wrote:

> Dear all,
> 
> Could someone help me to solve the following warnings? I see by 
> searching in the forum that some of you have already gone through 
> this, but I'm not being able to solve it. Besides that, I wonder why 
> these warnings occurred just after I made the transition from the old 
> E+ version to the new one. 
> Any help will be appreciated!!  Thanks a lot.
> 
> Thais Aya
> 
> ** Warning ** Calculated Relative Humidity out of range 
> (PsyRhFnTdbRhov)
>    **   ~~~   **  NodeReportingCalc:MAIN COOLING COIL 1 OUTLET NODE
>    **   ~~~   **  Occurrence info=SÃO PAULO - ANNUAL COOLING 1% DESIGN 
> CONDITIONS DB/MCWB, 02/21 12:30 - 12:31
>    **   ~~~   **  Dry-Bulb= 16.88 Rhovapor= 1.456E-002 Calculated 
> Relative Humidity (fraction)= 1.01
>    **   ~~~   ** Relative Humidity being reset to 1.0 
> 
> 
> 
> 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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