VE/CBECC-Com Issue - Unexpected Crash

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Version = 2013_3_653
Category = Unexpected Crash

Issue Summary:

Project crashes at 87% when simulation is running.  The VE crashes at this 
stage, so I opened the XML it generates and tried to run that through 
CBECC-Com.  At 87% it stalled and the program was “Not Responding”.

Any ideas what could be causing this?

Original issue reported on code.google.com by f.le...@gmail.com on 30 Dec 2014 at 8:21

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Original comment by f.le...@gmail.com on 30 Dec 2014 at 8:23

Attachments:

• 891_[VE2014]_561_EcclesT24Model_HVAC_122014_24Dec14.cab

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I'm not sure what version of CBECC they are trying to use.  In v2b, I get file 
read errors when attempting to open the file.  In v3 and v3a, when I attempt to 
simulate the process jumps very quickly to "ab - Annual Translation(s) . . ." 
and the progress bar indicates 87% complete, and at that point CBECC stops 
working and has to be closed.  I am unable to figure out what is happening.  
Annual translations should be happening much earlier than 87% complete.  This 
is an ExistingAlteration project.  

Transferring ownership to Scott.  

Original comment by rhedr...@archenergy.com on 2 Jan 2015 at 8:50

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When tested in the latest development version (SVN r3040) a number of warnings 
and errors are reported when analyzing this project.  Some initial ones fixed 
in the input file attached to this comment:
- model included 2 objects with the following duplicate Names (which is not 
allowed): "2013 External Window" & "Air segment" - manually edited in XML input
- Range check failure on WtrHtr:StdbyLossFrac of WaterHeater 'Water heater' - 
value updated from 0 to 0.001 in XML input

Reran analysis and got more errors:
- ZoneSystems 'FC-1' & 'FC-2' is Type = PTAC, but has no heating coil. This is 
currently not supported. If the system has no heating coil, model an 
appropriate Type heating coil with 1 Btu/hr capacity, or use the AirSystem 
object. - fixed by creating HeatingCoil objects as described in error message.

Reran analysis and got many more errors - the first of which was: Division by 
zero evaluating rule: Set SIZING_PROPOSED WtrHtr:TankOffCycleLossCoef  
(83:'WaterHeater.rule' line 3630)
This highlights a ruleset problem - any denominators should be checked for 
value = 0 prior to performing division, in which case logic must avoid the 
division (or perhaps a range check or CHECKSIM/CODE expression needs to prevent 
the user input from being analyzed.

Switching issue owner to NC to address WtrHtr rule fix.

Original comment by scriswel...@gmail.com on 10 Feb 2015 at 7:58

• Changed state: Discussion

Attachments:

• 561_EcclesT24Model_HVAC_122014-sv3.xml