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View_Data Measure Reporting Adjustments

asked 2018-12-11 09:11:08 -0500

jmbattis gravatar image

updated 2018-12-11 10:43:10 -0500

I'm wondering if there's an easy way of making the following adjustments to the View_Data measure:

  • Report/render zone-by-zone total energy demand (or total energy usage per reporting frequency unit)
  • Change reporting frequency to something other than the two built-in options (timestep and hourly)

Or does this functionality already exist somewhere? Thanks

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answered 2018-12-11 11:32:32 -0500

@jmbattis for the three variable arguments you should be able to choose any output variable that is associated with either a thermal zone or a building surface. Zone consumption or peak load per reporting frequency should be fine.

As far as changing the frequency you would have alter the code below to add in additional frequency options, but keep in mind the measure hasn't been tested with other values.

chs = OpenStudio::StringVector.new
chs << 'Timestep'
chs << 'Hourly'
reporting_frequency = OpenStudio::Ruleset::OSArgument::makeChoiceArgument('reporting_frequency', chs, true)
reporting_frequency.setDisplayName('Reporting Frequency')
reporting_frequency.setDefaultValue('Hourly')
args << reporting_frequency

I would specifically be careful with detailed, as it may be variable time step and measure may not be setup to handle that. I don't see any reason daily monthly or run period won't work, but would impact behavior of animation that steps through time and days.

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Thanks @David Goldwasser ! And where can I find the output variables associated with zone consumption or peak zone load? Does the Input-Output Reference Guide contain an exhaustive list of output variables (it seems that it just includes a large number of examples for .rdd and .mdd files)?

My intent is actually to simply have each zone rendered by EUI if possible.

jmbattis gravatar imagejmbattis ( 2018-12-11 12:28:16 -0500 )edit

Or not necessarily EUI, but something that is weighted by area. I think this makes visualizing zone-by-zone energy metrics, in this manner, more meaningful.

jmbattis gravatar imagejmbattis ( 2018-12-11 15:07:31 -0500 )edit

@jmbattis you are right, while something like zone temperature doesn't need to be normalized, zone electric consumption does. This measure would need to be updated to have argument to normalize with options like (none, area, volume, people). Are you just trying to get plug load or lighting? or are you also trying to represent HVAC consumption? Much of that doesn't map to the individual zones.

David Goldwasser gravatar imageDavid Goldwasser ( 2018-12-11 16:46:19 -0500 )edit

@David Goldwasser I am trying to represent total energy usage associated with each space or zone for the chosen reporting frequency,so including all of the above. Ideally, this would be normalized by area

jmbattis gravatar imagejmbattis ( 2018-12-12 08:09:57 -0500 )edit
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I would also be interested in something like this. In my case, I would be ok with having a whole year worth of data displayed as energy per zone. This would be very beneficial if say I am looking at multiple zones within a building and want to see which ones use the most/least amount of energy. The only way, thus far, that I have found to achieve these results is by adding up output variables such as "Air System Total Cooling Energy", "Lights Electric Energy", etc.

re-measure gravatar imagere-measure ( 2019-01-11 20:28:21 -0500 )edit

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Asked: 2018-12-11 09:11:08 -0500

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Last updated: Dec 11 '18