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EnergyPlus: Can Refrigeration:AirChiller be connected to Refrigeration:SecondarySystem through a Glycol loop?

asked 2019-01-05 03:57:08 -0500

Marco Giuliani gravatar image

updated 2019-01-05 11:34:03 -0500

Looking deeply in IO Reference and Engineering Reference, It is not clear if AirChiller Can be used in conjuntion with a Secondary System. The idea should be that the SecondarySystem (Evatorator) connects the primary Refrigeration System to a Glicol second loop that feeds into the Airchiller.

In the example file only direct connection of airchiller with system are presented while in the IOref it seems possible but the simulation do not run as expeted (even if does not report any errors)

Any other experience?

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Hi, I have the same situation and the same problem. The idea is connect Refrigeration:system with a Refrigeration:SecondarySystem through a glycol loop connected with reference of Refrigeration:AirChiller name in a Refrigeration:CaseAndWalkInList.

The simulation only reports warnings such as "You may wish to check the system sizing. Total nominal cooling capacity is 320000W. Condenser capacity is 354861W. Nominal compressor capacity is 129154W." But if i check ESO file, the compressors don't work and no consume energy.

did you solve this problem?

AlvaroCurinao gravatar image AlvaroCurinao  ( 2020-10-05 15:27:38 -0500 )edit

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answered 2019-03-05 17:07:39 -0500

It should be possible to connect Refrigeration:AirChiller to a secondary system. Reference the Refrigeration:AirChiller name in a Refrigeration:CaseAndWalkInList object, and reference the list object in Refrigeration:SecondarySystem.

See example file SupermarketSecondary.idf for a working example with a secondary system. Then try adding an airchiller to that.

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Asked: 2019-01-05 03:57:08 -0500

Seen: 242 times

Last updated: Mar 05 '19