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All-Electric Versions of DOE Commercial Prototype Models Hi All, Does anyone know if there exists all-electric versions

All-Electric Versions of DOE Commercial Prototype Models for Hi All, Does anyone know if there exists all-electric versi

All-Electric Versions of DOE Commercial Prototype Models for Hi All, Does anyone know if there exists all-electric versi

Hello, I used OpenStudio (v. 1.12) and ran the measure 'Create DOE Prototype Building' to create an ASHRAE 90.1-2010- SmallOffice building in climate zone 2A. The results are shown below:

Overall energy use:

End energy use:

I then proceeded to download and run the equivalent 90.1-2010 EnergyPlus model from the Commercial Prototype Building Models website in EnergyPlus version 8.5. The EnergyPlus results are shown below:

Although the overall results are fairly close (201.99 GJ vs 203.18 GJ is less than 1% difference in total site energy), it appears that the individual end use loads vary quite a bit. The cooling is 27% higher (41.71 GJ vs 30.33 GJ) in the EnergyPlus prototype and the lighting is 20% less (53.89 GJ vs 65 GJ) in the EnergyPlus prototype.

Since the cooling load increased and lighting decreased, my suspicion was that the WWR might be different between the two prototype buildings and it is.The southern WWR in the EnergyPlus prototype building is 24.44%, while the OpenStudio version is 19.81%. Why is there a difference between these models window-to-wall ratios? Are there any other differences between the prototype buildings that I should be wary of?

Also, yes I realize the set points are very narrow.

I think this worked without breaking anything: change line 1872 to "heating_season[i] = 1" change line 1879 to "coolin

I think this worked without breaking anything: change line 1872 to "heating_season[i] = 1" change line 1879 to "cooli

Hello, I am trying to use be-opt to help do some parametric analysis but the issue of the automated cooling schedule shut off has become an issue. Someone noted that the 'sim.py' file that comes with BeOpt might be able to be modified to correct this issue, by telling BeOpt to not set the seasonal schedules. Can anyone who knows BeOpt and/or Python well help me understand if this is a route I can take? I've started to review the file but have gotten kind of lost.

Previous questions similar to this topic:

https://unmethours.com/question/58351... https://unmethours.com/question/56859...

I think this worked without breaking anything: change line 1872 to "heating_season[i] = 1" change line 1879 to "cooling

Editing BeOpt sim.py file to correct heating/cooling season schedules Hello, I am trying to use be-opt to help do some p

SSR/Telecom/Server Room Equipment Power Density Assumptions I'm looking for any assumptions on how much the equipment po

SSR/Telecom/Server Room Equipment Power Density Assumptions I'm looking for any assumptions on how much the equipment po

I've been attempting to run the 'Unmet Load Hours Troubleshoot' measure, but it keeps failing. I've already seen this answer and have edited my measure so that those lines are now updated. I get the following errors in the simulation run:

"Processing Reporting Measures.

Applying UnmetLoadHoursTroubleshooting

Result: Fail

Error: Optional not initialized

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:638:in `get'

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:638:in `getAbruptScheduleChanges'

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:204:in `thermostat_setpoints_for_underperforming'

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:502:in `block in run'

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:494:in `each'

C:/Users/User/AppData/Local/Temp/OpenStudioApp.eE9596/resources/measures/UnmetLoadHoursTroubleshooting 1 1 1/measure.rb:494:in `run'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/util/measure.rb:441:in `apply_measure'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/util/measure.rb:67:in `block in apply_measures'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/util/measure.rb:31:in `each_index'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/util/measure.rb:31:in `apply_measures'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/jobs/run_reporting_measures.rb:81:in `perform'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/run.rb:256:in `step'

:/ruby/2.2.0/gems/openstudio-workflow-1.2.1/lib/openstudio/workflow/run.rb:210:in `run'

:/openstudio_cli.rb:802:in `execute'

:/openstudio_cli.rb:620:in `execute'

:/openstudio_cli.rb:1515: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>'

Failed."

I tried using the CostComponent:LineItem to produce a cost output for a VRF system (AirConditioner:VariableRefrigerantFlow), but it didn't work. I figured it probably wouldn't because the only HVAC equipment listed in the Input-Output Reference is the Chiller:Electric HVAC equipment. Ultimately, I am trying to use jEplus+EA to determine the lowest cost of the whole building (including VRF System). The one way I have found to do this is to output the total cost of the building (including VRF System) into the .sql file, so that I can use the .vrx file to set the total cost as the objective. But I can't do that unless I can apply the CostComponent:LineItem to the VRF system. My questions are:

1. How would one calculate the cost of a VRF system in the .idf file in order to output the price in the .sql file in order to set as the objective in jEplus+EA?
2. Is there another method I should be looking into?

Thanks!

Update: This worked! I used the csvs option in the jEplus and pulled each variable I needed for each HVAC System Type (A

in the eplustbl.csv file.

Ah I think I see your point. So as long as each HVAC system has a unique FromTable;FromRow;FromColumn from the Component

Ah I think I see your point. So as long as each HVAC system has a unique FromTable;FromRow;FromColumn from the Component

Thank you for your response Dr. Zhang. I had considered using the first option (applying a multiplier to the sizing info

Thank you for your response Dr. Zhang. I had considered using the first option (applying a multiplier to the sizing info

Producing cost estimate for a VRF System in EnergyPlus for use in jEplus I tried using the CostComponent:LineItem to pro

Producing cost estimate for a VRF System in EnergyPlus to use jEplus I tried using the CostComponent:LineItem to produce

Producing cost estimate for a VRF System in EnergyPlus to use jEplus I tried using the CostComponent:LineItem to produce

Producing cost estimate for a VRF System in EnergyPlus to use jEplus I tried using the CostComponent:LineItem to produce

Producing cost estimate for a VRF System in EnergyPlus to use jEplus I tried using the CostComponent:LineItem to produce

Producing cost estimate for a VRF System in EnergyPlus to use jEplus I tried to using the CostComponent:LineItem to prod

Good catch. I edited my answer above.

Ideal Air Loads will report the total district heating and cooling load that building experiences. It's not an actual HV

@mcdonaa1 No problem. Could you please accept either my answer or @ljbrackney's (more complete) answer to your question.

@mcdonaa1 No problem. Could you please accept either my answer or @ljbrackney's (more complete) answer to your question.

Automated Dewpoint Temperature Control for Radiant Floor System This is a progression from my previous question about co

Do you mean OpenStudio Results such as the image below? I'm having the same issue, but I've just been running the Ope

Do you mean OpenStudio Results such as the image below? I'm having the same issue, but I just have been running the O

Ideal Air Loads will report the total heating and cooling load that each thermal zone experiences. It's not an actual HV

Automated Dewpoint Temperature Control for Radiant Floor System This is a progression from my previous question about co