The secondary air has to come from relief air
leaving an OA mixer. If you have 100% recirculation then there is no
difference between the flow or conditions at relief node and the inlet to supply
side.
Check out the example file delivered with
EnergyPlus named “ReliefIndEvapCoolerRTUoffice.idf”
From:
Sent: Monday, January 26, 2009
8:10 AM
To:
Subject: [EnergyPlus_Support]
Secondary Air Inlet on EvaporativeCooler:Indirect:ResearchSpecial Object
Hi E+,
I'm trying to model a central A/C system that cools air taken from the building
with an
Adiabatic Spray and then cools incoming fresh air intake via a heat exchanger.
I've identified
that I need to use the EvaporativeCooler:
modelling the system.
My issue is that I'm not sure how to connect the secondary air intake in the
model to the
system. I want the secondary air inlet node of the EvapCooler to be at the
beginning of the
supply side, to take the air leaving all the building zones via a ZoneMixer
object.
Any help is greatly appreciated.
Kind Regards,
Stefan
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