OtherEquipment is less hassle than ElecticEquipment, it does not
consume energy that would need to be backed out to avoid double counting.
From:
EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On
Behalf Of jvd2pe
Sent: Tuesday, September 07, 2010 3:12 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Simple way to account for motor casing
heat
Dear Forum,
Life is good! Big problems are (mostly) solved, so I'm turning my attention to
smaller ones.
Has anyone come up with a simple way to add motor casing heat to a zone so that
the HVAC system treats it as a heating / coolning load?
For example:
* I have 200kW of pump motors in a mechanical room
* Each motor is 90% efficient
* This means that 20kW (10%) is lost from the motor to the adjoining mechanical
room zone
* the entire 220kW will be accounted for by E+ in its energy calculations, but
the HVAC system in the mechanical room never "sees" the 20kW and
therefore cannot respond properly.
My best solution thus far is to add the 20kW into the zone as
"OtherEquipment" or "ElectricEquipment", and then back it
out from the electricity totals (so it won't be counted twice).
That's too much effort for a relatively small amount of energy in my opinion!
Better idea, anyone? (Thanks in advance.)
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