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Chiller:Electric:EIR model default curves for industrial cooling process

asked 2019-02-12 10:53:34 -0500

Nils Schmitt's avatar

updated 2019-02-12 13:13:21 -0500

Hello everyone, I'm looking for a chiller model for simulation. The chillers are used to cool an injection molding process and it is planned to use decentralized, small chillers. I was wondering if I can use the Chiller:Electric:EIR model, especially the default curve coefficients as a first indication. For example I like to use the Electric Input Ratio as a function with respect to the Part Load Ratio: EIR=a+b×PLR+c×PLR^2

Or is the model or the curve itself only applicable for HVAC systems?

Thanks a lot.

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answered 2019-02-12 12:24:29 -0500

The chiller model is for modeling a chilled water plant and is applicable for HVAC or other demand loads imposed on the plant. If you want to model only the chiller and you have an idea what loads the injection molding process would impose on a chilled water system then you could simulate the plant only by using the LoadProfile:Plant object and of course a plant loop. The LoadProfile:Plant object would need a schedule of loads for each hour, or sub-hour, of the year along with a water flow rate fraction schedule. This load profile would be connected to the plant. The example file PipingSystem_Underground_TwoPipe.idf shows how simple this would be to set up. Also check the documentation for more information.

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Asked: 2019-02-12 10:53:34 -0500

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Last updated: Feb 12 '19