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How to model a Unitary System with one coil

asked 2018-01-18 15:32:07 -0600

lyw0211's avatar

Hello, I want to model a water-cooled self-contained unit by E+ and each unit includes a supply fan, a DX coil and a condenser. And there is a cooling tower to supply the condensing water to the unit.

Since I'm considering to model each component separately, I'm going to use a Coil:Cooling:WaterToAirHeatPump:EquationFit to model the DX coil. But it needs to be wrapped into a separate AirLoopHVAC:Unitary System based on the existing answers to the questions here here and here.

Anyone know if we still do that? If so, how to set up the coil and the unitary system? Could anyone provide me an example?


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@lyw0211 Are you familiar with the E+ examples such as UnitarySystem_DXCoilSystemAuto.idf?

Avi's avatar Avi  ( 2018-01-22 04:18:45 -0600 )edit

@Avi Thanks for the reminder ! I just reviewed that file and got some knowledge there. But it is not exactly what I need. Do you have the example with Coil:Cooling:DX:SingleSpeed?

lyw0211's avatar lyw0211  ( 2018-01-22 16:47:06 -0600 )edit

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answered 2018-01-22 16:54:24 -0600

updated 2018-01-22 16:54:33 -0600

You can search example files for objects by using the "ExampleFiles-ObjectsLink.html" file in your C drive EnergyPlus example files folder. The "Coil:Cooling:DX:SingleSpeed" is in the 1ZoneDataCenterCRAC_wPumpedDXCoolingCoil.idf, 2ZoneDataCenterHVAC_wEconomizer.idf, and AirflowNetwork_MultiZone_House.idf files.

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@Anna Osborne Brannon This is very useful! Thank you!

lyw0211's avatar lyw0211  ( 2018-01-29 14:56:44 -0600 )edit

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Asked: 2018-01-18 15:32:07 -0600

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Last updated: Jan 22 '18