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Thermal energy storage Chilled Water Tank With multiple chillers

asked 2021-10-21 12:56:43 -0500

Draza's avatar

updated 2021-10-21 13:21:33 -0500

I am modeling a central chilled water plant with a stratified chilled water thermal storage device in OpenStudio. There are multiple chillers in the central plant. My question is how would I set up the tank to be able to be charged by multiple chillers within the plant loop? According to the plant application guide, the TES tank should be placed on the outlet of the chiller object, if I do this then only that chiller is able to charge the tank. My thought was to either: 1. Create two separate loops. The first loop would have the chillers on the supply side and the TES tank on the demand side. the second loop would have the TES tank on the supply side and the load on the demand side. Is there any drawbacks to this? 2. Use multiple TES tank objects with smaller capacity on the outlet of each chiller. This doesn't seem like a good workaround but I don't see another way to model the TES Tank with it being connected to multiple chillers.

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answered 2022-10-21 04:45:29 -0500

Hello, Do you try to use a splitter and a mixer? It would be like using a bypass. You can look at the absorption.idf in energyplus examples files. There is an example of one cooling tower used by two chillers and they did it like this.

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Asked: 2021-10-21 12:56:43 -0500

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Last updated: Oct 21 '21