Dear friends,

I am modeling the active chilled beams system using an induction unit. I
have created a separate treated outside air system (TOAS) from where the
fresh air would be supplied to

the induction unit. I have hard coded the fresh air requirement for each
zone at the outdoor air CFM field under outside air tab as well as under
design flow cfm field under air flow tab

so that the only the fresh air requirement is supplied to the zone. The
cooling will be done by chilled beams modeled as induction unit.

when I see the simulation report the amount of fan energy consumed is huge
which is nearly about 20% percent of the overall energy consumption.

So then I zeroed out the fan energy i.e kW/CFM for fans =0 and only the TOAS
has the fan energy but the fan energy consumption decreased very little.

I have no other source in the model for which the fan energy could be
accountable for.

Can anyone please tell what can be the reason for this or if I am missing
out on something?

Am I modeling the system right? How is the fan energy for this system to be
modeled?

Vishnuraj Nair