Foundation Kiva and AirWall
Recently I wrote E+ measures to implement Foundation Kiva in OS. When I ran it I found out that when I introduce it into a zone concaved by another zone (in my case a stairwell) which apart of its floor all other walls are airwalls I am ending up with fatal error:
** Severe ** DualSetPointWithDeadBand: Unanticipated combination of heating and cooling loads - report to EnergyPlus Development Team
** ~~~ ** occurs in Zone=THERMAL ZONE: BASE LIVING During Warmup & Sizing, Environment=TEL AVIV-BET DAGAN ANN CLG .4% CONDNS DB=>MWB, at Simulation time=08/21 00:00 - 00:05
** ~~~ ** LoadToHeatingSetPoint=NAN, LoadToCoolingSetPoint=NAN
** ~~~ ** Zone Heating Set-point=18.03
** ~~~ ** Zone Cooling Set-point=26.00
** ~~~ ** Zone TempDepZnLd=159.98
** ~~~ ** Zone TempIndZnLd=NAN
** ~~~ ** Zone ThermostatSetPoint=0.00
** Fatal ** Program terminates due to above conditions.
Some other times (not yet sure why or what I do different) It fails right after running the measures and I end up with empty eplusout.log and the following massages in stdout file:
[13:29:45.911064 WARN] EnergyPlus returned a non-zero exit code. Check the stdout-energyplus log.
[13:29:45.911064 ERROR] :/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/util/energyplus.rb failed with EnergyPlus failed and did not create an eplusout.end file. Check the stdout-energyplus log., :/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/util/energyplus.rb:159:in `call_energyplus'
:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/jobs/run_energyplus.rb:44:in `perform'
:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/run.rb:261:in `step'
:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/run.rb:210:in `run'
:/openstudio_cli.rb:804:in `execute'
:/openstudio_cli.rb:620:in `execute'
:/openstudio_cli.rb:1517:in `<main>'
eval:85:in `eval'
eval:85:in `require_embedded_absolute'
eval:70:in `block in require'
eval:64:in `each'
eval:64:in `require'
eval:2:in `<main>'
[13:29:45.912068 ERROR] Found error in state 'simulation' with message [":/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/util/energyplus.rb failed with EnergyPlus failed and did not create an eplusout.end file. Check the stdout-energyplus log., :/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/util/energyplus.rb:159:in `call_energyplus'\n:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/jobs/run_energyplus.rb:44:in `perform'\n:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/run.rb:261:in `step'\n:/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/run.rb:210:in `run'\n:/openstudio_cli.rb:804:in `execute'\n:/openstudio_cli.rb:620:in `execute'\n:/openstudio_cli.rb:1517:in `<main>'\neval:85:in `eval'\neval:85:in `require_embedded_absolute'\neval:70:in `block in require'\neval:64:in `each'\neval:64:in `require'\neval:2:in `<main>'::/ruby/2.2.0/gems/openstudio-workflow-1.3.1/lib/openstudio/workflow/util/energyplus.rb:165:in `rescue in call_energyplus'\n:/ruby/2.2.0/gems/openstudio-workflow-1.3 ...
I can’t answer your question, but just wanted to point out that we hope to have Kiva wrapped in OpenStudio in the near future.
@shorowit Great news
@Avi, are you still experiencing this? What version of EnergyPlus are you using? There was a fix for a similar problem in the 8.8 release.
@Neal Kruis I am using today OS 2.4.0 with E+ 8.8. At the time I wrote this post I believe I was using OS 2.2.0 with E+ 8.7.0. I worked around the problem by making the stairwell part of the basement eliminating the lower airwalls. I can go on and try to find the old model before the change and try to run it in OS 2.4.0 if it helps.