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Modeling a scheduled power outage in EnergyPlus with priority loads

asked 4 years ago

carolyng's avatar

updated 4 years ago

Is it possible to model a power outage in EnergyPlus where certain loads are given priority to backup power? For example, in a supermarket, lights, computers, and refrigerators with sodas may not be powered but the refrigerators with meat would be powered.

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answered 4 years ago

If you need to control refrigeration, then your best option may be using the Energy Management System (EMS) feature of EnergyPlus. There is an EMS Actuator option for the Refrigeration:System object, but only to override the Minimum Condensing Temperature input field. If you use this approach, it may be a good idea to include the controls of everything else (lights, computers, etc.) in your EMS objects and routines.

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answered 4 years ago

Take a look at these objects:

  • DemandManager:ElectricEquipment
  • DemandManager:ExteriorLights
  • DemandManager:Lights
  • DemandManager:Thermostats
  • DemandManager:Ventilation
  • DemandManagerAssignmentList

Then you can always just schedule your objects to turn them off.

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Right I saw that. It doesn't look like the Demand Manager can control refrigeration unfortunately, only the electric loads specified in the "Electric Equipment" object.

carolyng's avatar carolyng  ( 4 years ago )

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Asked: 4 years ago

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Last updated: Sep 22 '20