[Bldg-sim] Warehouse ventilations to comply with ASHRAE 62.1

[James V Dirkes II, PE]

Ashraf,

 

ASHRAE 62.1 is concerned with people, who need ventilation (supply /
intake).  For typical buildings, you may not need separate exhaust fans,
because that amount can probably exfiltrate through cracks.  Supply and
exhaust fans can be used in tandem if the building is fairly tight (no
leaks).

 

Your MEP team's  5-8 air changes per hour is for cooling, not ventilation.
Any building with which has that much infiltration is closer to a tent than
a building! (It's not closed up.)

 

The Building Performance Team
James V. Dirkes II, P.E., LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Ashraf Khan
Sent: Tuesday, January 25, 2011 11:55 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Warehouse ventilations to comply with ASHRAE 62.1

 

We received a LEED review comment regarding Warehouse ventilation to comply
with ASHRAE 62.1-2004.

 

Generally depending on the warehouse storage, MEP team recommends 5-8 Air
Changes per Hour by thumb rule for exhaust and air intake is assumed by
infiltration by windows, open doors etc.. But this number I haven't find in
ASHRAE, please give me reference.

 

ASHRAE 62.1-2004, Table 6-1 for warehouse category says to have 0.06
cfm/ft2, is this number defines to intake or Exhaust? If it is exhaust, it
is too small as volume of warehouse will be high.

 

Please share your ideas to comply with the requirements.

 

Thanks & Regards,

Ashraf

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