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How to build a dummy air distribution unit in EnergyPlus?

asked 2017-06-26 11:29:09 -0600

building_performance gravatar image

updated 2017-06-26 15:05:28 -0600

I need some EMS programming for control zone supply air temperature and zone supply air flowrate. But my EnergyPlus model only has building information, no controls/setpoint/fans. I need to build a dummy air-duct or ADU for EMS purpose to seeking the zone supply level actuator. How to implement this idea?

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answered 2017-06-26 15:05:08 -0600

updated 2017-06-26 15:05:20 -0600

You can use an ZoneHVAC:IdealLoadsAirSystem for example, or the more convenient HVACTemplate:Zone:IdealLoadsAirSystem.

From the EMS Application guide for Ideal Loads Air System:

An actuator called “Ideal Loads Air System” is available with control types called “Air Mass Flow Rate” (supply air), “Outdoor Air Mass Flow Rate,” “Air Temperature,” and “Air Humidity Ratio.

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Thanks for the response. But the problem using IdealLoadsairSystem is: the zone_supply_airflow actuator will not work correctly, if i delete the ZoneControl:ThermoStat.

building_performance gravatar image building_performance  ( 2017-06-26 15:32:50 -0600 )edit

Why do you delete it?

Julien Marrec gravatar image Julien Marrec  ( 2017-06-26 15:37:29 -0600 )edit

Because i have my own control logic including the setpoint from external script. I just need to use EnergyPlus building model only.

building_performance gravatar image building_performance  ( 2017-06-27 09:15:50 -0600 )edit

Does it matter if you keep the thermostat since you're overriding it anyways?

Julien Marrec gravatar image Julien Marrec  ( 2017-06-27 09:56:18 -0600 )edit

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Asked: 2017-06-26 11:29:09 -0600

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Last updated: Jun 26 '17