[Equest-users] Greater OSA than supply air fan flow ???

[Michael Wilson]

Hi John. Not sure if I exactly understand your problem, but it would seem to
me the question is whether the exhaust fan impacts the loads on your split
systems. If it doesn't (i.e. the air is just pulled in to an unconditioned
area and exhausted), then I would just ignore it and model the exhaust fan
energy as a misc elec load. If its does (the fan draws the air through the
space served by the splits), then model as an exhaust fan with source as
infiltration. Either way the splits can be modelled as they really are.

 

 

Michael Wilson, P.Eng.

PO Box 1911 - 458 Abbs Rd.

Gibsons, BC  V0N 1V0

604-886-9864

www.enerficiency.ca

 

 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John
Aulbach
Sent: February-02-12 9:37 AM
To: eQUEST Users List
Subject: [Equest-users] Greater OSA than supply air fan flow ???

 

All:

 

Please never call me a guru. I am just an "older" user.

 

Gotta new nifty problem, which someone already knows..

 

I have an automobile service bay below a dealership in the Los Angeles area.
They have 4-10 ton split systems, each 4,000 CFM (16,000 CFM all toll).

 

There is an exhaust system pulling in 22,000 CFM of outside air through the
automobile entrance ramp down into the basement shop...and out the exhaust
fan.

 

I am wondering if I should just call these fan coils (package, and cooling
only).  Then I think the outside air is a separate path than having to go
directly throuhg the unit.

 

Winner gets a pretend $100 bill. Thanks.

 

John R. Aulbach, PE, CEM

Senior Energy Engineer

  _____  

Partner Energy

2154 Torrance Blvd, Ste. 100, Torrance, CA 90501
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745

 <http://www.ptrenergy.com/> www.ptrenergy.com
<mailto:%7C%20jaulbach at ptrenergy.com> | jaulbach at ptrenergy.com

 

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