[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] DX Fan coil - Temperature (high) out of bounds





I increased the infiltration as much as I can but still I have the same problem?



From: Richard Raustad <RRaustad@xxxxxxxxxxxx>
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Wednesday, August 15, 2012 3:43 PM
Subject: Re: [EnergyPlus_Support] DX Fan coil - Temperature (high) out of bounds

 
Increase the infiltration until it runs.

On 8/15/2012 3:41 PM, Eshagh wrote:
Thanks for the information. I added infiltration and it gives similar erro but this time another wall surface has high band temperature!

 ** Severe  ** Temperature (high) out of bounds (207.10] for zone="02-05IT", for surface="6F9A75"
   **   ~~~   **  During Warmup, Environment=RUN, at Simulation time=01/01 13:45 - 14:00
   **   ~~~   ** Zone="02-05IT", Diagnostic Details:
   **   ~~~   ** ...Internal Heat Gain [0.000] W/m2
   **   ~~~   ** ...Infiltration/Ventilation [1.001E-002] m3/s
   **   ~~~   ** ...Mixing/Cross Mixing [0.000] m3/s
   **   ~~~   ** ...Zone is part of HVAC controlled system.
   **  Fatal  ** CalcHeatBalanceInsideSurf: Program terminates due to preceding conditions.


What else would you suggest to?

Thanks,

Eshagh


From: Richard Raustad <RRaustad@xxxxxxxxxxxx>
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Wednesday, August 15, 2012 3:25 PM
Subject: Re: [EnergyPlus_Support] DX Fan coil - Temperature (high) out of bounds

 
Add infiltration to get it to run and then look into why the gains are high.

On 8/15/2012 3:21 PM, Eshagh wrote:
Hi,

I model a building that has a IT room with just DX coil in it with no fresh air. I used a single speed DX coil with coil heating gas and AirloopHVAC:Unitary:Furnace component. When I run the model, I have one sever error as follows:

** Severe  ** Temperature (high) out of bounds (202.62] for zone="02-05IT", for surface="383F89"
   **   ~~~   **  During Warmup, Environment=RUN, at Simulation time=01/01 11:30 - 11:45
   **   ~~~   ** Zone="02-05IT", Diagnostic Details:
   **   ~~~   ** ...Internal Heat Gain [0.000] W/m2
   **   ~~~   ** ...Infiltration/Ventilation [0.000] m3/s
   **   ~~~   ** ...Mixing/Cross Mixing [0.000] m3/s
   **   ~~~   ** ...Zone is part of HVAC controlled system.

I checked the surface and it's a surface adjacent to the corridor. The corridor is not conditioned, however, I do not know why the temperature on this particular surface is so high that it stops my simulation.

Can you please let me know about any tips/tricks that I overcome this problem?

Thanks,

Eshagh



-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL  32922-5703
Phone:   (321) 638-1454
Fax:     (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years



-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL  32922-5703
Phone:   (321) 638-1454
Fax:     (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years




__._,_.___


Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

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 currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.




Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe

__,_._,___