Then you either have large zone radiant loads or direct or diffuse
solar on the surfaces that cause these high temps.
Usually, bringing in infiltration will reduce the surface temps,
something is causing them to be high.
Since this is happening during warmup, you can't see the data in the
csv file (your Output:Variables).
Add:
Output:Diagnostics,ReportDuringWarmup;
This way you can see what's happening (in the csv file) and possibly
diagnose the problem.
Add report variables from the rdd file (use Output:Dictionary,IDF;
to see the rdd)
On 8/16/2012 10:28 AM, Eshagh wrote:
I increased the infiltration as much as I can but
still I have the same problem?
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
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
--
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