Re: [EnergyPlus_Support] Extraction ventilators

["Michael J. Witte" <mjwitte@xxxxxxxx>]

2 options -

1.  If the zone with the exhaust fan is served with a COMPACT HVAC 
system, then you must run a simulation using the idf with COMPACT HVAC 
objects, then take the expidf output file from that run, rename it to a 
new filename.idf, and edit to add a ZONE EXHAUST FAN object and add it 
to the ZONE EQUIPMENT LIST for that zone.

2.  If the zone with the exhaust fan is *not* served with a COMPACT HVAC 
system, the you may add the ZONE EXHAUST FAN object in your base idf 
file (the one containing COMPACT HVAC objects for other zones.).  In 
this case, you will need to create a CONTROLLED ZONE EQUIP CONFIGURATION 
object, a ZONE EQUIPMENT LIST, and the ZONE EXHAUST FAN.  Note, however, 
that an exhaust fan in a zone not served by a central HVAC system will 
not automatically cause fresh air to enter the building.  You must add 
INFILTRATION or MIXING from another zone to balance this.

Mike


Ricardo Miranda wrote:
> Hello,
>
> I´m simulating a building that has many exhaust fans. I´m modeling the HVAC
> system with the COMPACT HVAC. The exaust fans have a different schedule than
> the HVAC system. How can I model the energy consumption of the exaust fans
> without the need of an air loop?
>
>
> Regards,
> Ricardo Miranda
>
>
> [Non-text portions of this message have been removed]
>
>
>
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