[EnergyPlus_Support] Re: Temperature out of bounds

["berlinclownfish" <SPlamp@xxxxxxxxxxxxxxxx>]

This is a kind reminder.

Does anybody have an idea of what my problem might be?

Any feedback is much appreciated,

Sandro



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "berlinclownfish" 
<SPlamp@...> wrote:
>
> Dear EnergyPlus-support,
> 
> I experience the identical problem as for the previous users, 
> although the background might be different (refer to: 
message#8614), 
> I've decided to join the current thread.
> 
> BACKGROUND
> I've continued the modeling process by replacing a single VAV 
> terminal unit w/ reheat option with a VAV terminal unit w/o reheat 
> and at the same time modeled a low temperature hydronic system for 
a 
> selected subsurface (ThirdFloor, Zone 79310, C_79310_1_0_0_0_0) in 
> the corresponding zone.
> 
> SYMPTOM
> After executing the simulation, EnergyPlus terminates with a fatal 
> error indicating that the temperature of a surface (interior 
> partition) is out of bounds (209.29). What puzzles me, is that the 
> probelamtic surface indicated is actually on the model's sixth floor
> (SixthFloor, Zone 79073, P_79073_10146_0_10101).
> 
> DIAGNOSIS
> I've tried to investigate the problem further, but I'm unable to 
> establish a connection between the two surfaces, but it appears 
that 
> the error only occurs during the winter design day, when heating is 
> available by a schedule an required by the zones heating setpoints. 
I 
> presume, the heating energy of my ceiling panel somehow ends up in 
a 
> non-related partition, three floors above, thus causing the 
> temperature being out of bound.
> 
> POSSIBLE CONCLUSION
> The problematic surface is part of the stairwell (Stair 1) oriented 
> towards north direction, where stair's on each floor and ceiling 
are 
> interconnected through a hole in the slab and ceiling, 
respectively. 
> I wanted to contribute from the effect of minimizing the simulation 
> runtime required to model dedicated HVAC descriptions for each 
stair 
> on each story by using holes an some kind of mixing pattern instead.
> 
> I'll upload my file 'SPlamp_in_v7.idf' for further reference.
> 
> Any feedback is appreciated,
> 
> Sandro
>




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

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/