Can I model a tank which has three different inputs and outputs?

asked 5 years ago

mayks
61 ●2

updated 5 years ago

__AmirRoth__

4446 ●5 ●17 http://bleedinggreenna...

Hello, I´m modelling a system in energyplus that has three cooling towers and three chillers and all of them are coupled to one accummulation tank. What object can I use? (I tried to use ThermalStorage:ChilledWater: Mixed but I just can put one inlet and one outlet node). The inlets of the accumulation tank comes from the cooling towers and then goes to the chiller.

I also want to know which object can I use for a stratified tank that can have also three inlets. Thank you

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answered 5 years ago

mayks
61 ●2

I see what you have done, but my system is composed by two differnt loops each one with a different coolingTower and chiller but ther are connected through the tank. Can I still do it as you? My system is in the link below

link text

link

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This should have been a comment and not an answer. I'm getting a 403 (forbidden access) at the link you gave.

Julien Marrec ( 5 years ago )

https://drive.google.com/drive/folder...

I think now it will work

mayks ( 5 years ago )

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answered 5 years ago

Julien Marrec

30066 ●105 ●80 http://www.effibem.com/

I can suggest an idea...

Your Cooling Towers would be on the supply side of a plant loop, on parallel branches. Then it mixes via the PlantLoop Mixer, goes to the demand side, at which point you just place a WaterHeater:Mixed (or WaterHeater:Stratified).

That WaterHeater:Mixed is then on the supply side of another plant loop, and on the demand side you place all three chillers in parallel (their condenser nodes). The Pump for that loop can be "virtual" with a very low pressure rise and almost 0 power used.

The three chillers are then on the supply side of the Chilled water loop (evaporator side), serving the building load.

Here's a showcase of my Pinta (Paint) skills:

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