Re: [EnergyPlus_Support] Inside surface heat balance did not converge

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

1. Surface heat blance did not converge -   Not sure what would cause 
that.  Could be problems with high internal loads, high radiant 
loads, zone too complicated, or very massive construction.  If it 
only occurs a few times, then results are probably valid.  If many, 
then not valid.

2.  Max iterations exceeded - If only one or two times, then results 
are probably valid, if many, then not valid. 

3.  No equipment found - The plant loop load has exceeded your 
highest load range in the HEATING LOAD RANGE BASED OPERATION object.

Mike


On 22 Oct 2002, at 10:32, rmp4aup6 wrote:

> In my simuation result, there shows some warning message:
> "Inside surface heat balance did not converge."
> What kind of situation will possible be due to the warning
> message??How can I solve it?
> 
> Other warning messages are:
> "simHVAC:Maximum iterations exceeded for all the HVAC loops, CHICAGO
> ILLINOIS SUMMER, 07/21 08:01" Although this warning message showed,
> the temperature in each room is fixed to 24C correctly. Can we trust
> the result even the warning message showed?
> 
> Moreover, when I tried to add the data from 5F to 11F, 
> Another warning messages showed:
> "No equipment found in FindLoadRangeAndEquipList,
> LoopDemand=1411622.224 operation Scheme=Central Boiler"
> "No equipment list specified in ManagePlantLoopOperation--all
> equipment turned off"
> What the mistakes could be in this kind of case that the warning
> message were different when I just change the floor data?
> 
> Thank you very much.
> 
> 
> 
> 
> 
> 
> ------------------------ Yahoo! Groups Sponsor
> ---------------------~--> Get 128 Bit SSL Encryption!
> http://us.click.yahoo.com/JjlUgA/vN2EAA/kG8FAA/dkFolB/TM
> ---------------------------------------------------------------------~
> ->
> 
> To unsubscribe from this group, send an email to:
> EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
> 
> 
> 
> 
> 
> 
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/ 
> 



========================================================
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx


------------------------ Yahoo! Groups Sponsor ---------------------~-->
Get 128 Bit SSL Encryption!
http://us.click.yahoo.com/JjlUgA/vN2EAA/kG8FAA/dkFolB/TM
---------------------------------------------------------------------~->

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

The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/




 

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