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Separating interior equipment loads

asked 2017-02-03 12:27:00 -0600

Arun's avatar

updated 2017-08-15 13:46:34 -0600

I am working on a retail store building that has plug loads, video walls and server loads as interior equipment loads. Is there a way to separate these loads?

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Please tag the simulation engine you are using. If you are using EnergyPlus see this post on reporting electrical and lighting loads individually.

David Goldwasser's avatar David Goldwasser  ( 2017-02-03 12:34:55 -0600 )edit

Thanks David. Yes, I am using EnergyPlus. I want to separate the electrical loads as Server load, video wall load and plug load. Is that possible?

Arun's avatar Arun  ( 2017-02-03 12:52:55 -0600 )edit

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answered 2017-02-03 12:58:51 -0600

updated 2017-02-03 13:15:30 -0600

I would create a separate Electric Equipment Definition and a schedule for each one from the OpenStudio Loads tab. If you want to sub-meter these use the End-Use Subcategory field, which is not exposed in the OpenStudio app but can be set using the API. These will show up in the End Uses By Subcategory table in the EnergyPlus HTML results file. Here's an example using elevators.

# get model objects
objs = model.getElectricEquipments

# do stuff
objs.each do |obj|

    eed = obj.electricEquipmentDefinition

    if eed.name.to_s.include?('Elevators')
        obj.setEndUseSubcategory('Elevators')
    end

end
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Thanks Matt. This should work.

Arun's avatar Arun  ( 2017-02-03 13:04:34 -0600 )edit

Hey Arun, are you using OpenStudio then?

MatthewSteen's avatar MatthewSteen  ( 2017-02-03 13:12:48 -0600 )edit

Yes, I am using OS

Arun's avatar Arun  ( 2017-02-03 13:31:40 -0600 )edit

Hey Matt, Thanks! I got that working. But, the results shows annual usage. It will be useful if there is a way to get monthly usage also. Any idea?

Arun's avatar Arun  ( 2017-02-03 17:53:29 -0600 )edit

You could write a measure to set up an Output:Meter that would aggregate all equipment related to a specific end use under the same meter. Otherwise, post process after requesting all appropriate monthly Output:Variable

Julien Marrec's avatar Julien Marrec  ( 2017-02-04 18:03:06 -0600 )edit

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Asked: 2017-02-03 12:27:00 -0600

Seen: 265 times

Last updated: Feb 03 '17