[Equest-users] Active Chilled Beam/Fan Coil System

[Greg Collins]

Hi all,

 

I'm working on modeling an active chilled beam system.  It consists of
the chilled beams and a dedicated unit to provide primary air (mainly
ventilation air) to the beams at 55 degrees.  I've modeled the chilled
beam system as a fan coil system, but am wondering about my options for
modeling the primary air.  

 

My question is this:  If I attach the primary/ventilation air unit to
the fan coil system in the FC's Outdoor Air tab under "Outside Air from
System" will the temperature of the air coming from that unit have an
impact on the load in the space?  I have a ton of hours at very low load
during the winter months, and I want eQuest to use the 55 degree primary
air as the first stage of cooling for the space and not "double up" the
cooling energy by cooling the 55 degree air and then not use that for
cooling in the zones.

 

If anybody has some input, it would be appreciated. 

 

Greg Collins
Design Engineer / Energy Analyst

Mechanical Department
LEED(r) Accredited Professional

  <http://www.glumac.com/> 

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