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How to use Chiller:Electric:ReformulatedEIR in openstudio

asked 2016-11-04 15:33:39 -0600

CRHavis's avatar

updated 2017-04-27 08:28:20 -0600

I have manufacturer's ReformulatedEIR curves. How can I get Chiller:Electric:ReformulatedEIR in my openstudio plant loop?

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answered 2016-11-04 15:52:35 -0600

You'll have to use an EnergyPlus Measure to add this, as this object is not supported by OpenStudio.

I would:

  1. Add a placeholder Chiller:Electric:EIR to create the appropriate nodes
  2. Use an EnergyPlus Measure to swap out the Chiller:Electric:EIR for the Chiller:Electric:ReformulatedEIR
    • Make sure to remember to change the object type in the branch
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Does such a measure exist already?(I'm not a Ruby or E+ Guru) Any reason Chiller:Electric:ReformulatedEIR is not supported?

CRHavis's avatar CRHavis  ( 2016-11-04 16:13:05 -0600 )edit

If you set up the chiller and curve objects in their own idf, you can use the inject idf objects measure to put those objects into your model. Then, if you don't want to figure out how to connect them via measure, you'd have to open up the out.idf and hook up the chiller manually.

ericringold's avatar ericringold  ( 2016-11-04 16:41:55 -0600 )edit

I have an EnergyPlus Measure that does this for a Chiller:ConstantCOP that could be adapted. In addition to updating the Branch that the Chiller:Electric:EIR is on, the EP measure will also need to update the PlantEquipmentList.

MatthewSteen's avatar MatthewSteen  ( 2016-11-05 11:32:24 -0600 )edit

Would it be possible to add the object chiller:electric:reformulatedEIR and the bicubic EIRfPLR curve into the osm file?

kramerica's avatar kramerica  ( 2016-11-11 15:42:22 -0600 )edit

No, editing the OSM directly is a dangerous operation that can corrupt your model if you're not careful and in this case OpenStudio doesn't know how to translate it to EnergyPlus (not currently in the API). Andrew's or Eric's suggestions are the only ways to do this currently.

MatthewSteen's avatar MatthewSteen  ( 2016-11-11 16:11:39 -0600 )edit

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Asked: 2016-11-04 15:33:39 -0600

Seen: 436 times

Last updated: Nov 04 '16