[Equest-users] ASHRAE 62.1 cfm/person

[Min-Hwan Yang]

I think what Pravin did was correct.

Eric, according to DOE2.2 Dictionary, only the maximum value of oa-flow/area and oa-flow/per will be used, not summed together.  
Please let me know if I am wrong.

Min-Hwan Yang, CPD, LEED AP
Mechanical Engineer | yangm at kjww.com

200 West Jackson Boulevard, Suite 1200 | Chicago, Illinois 60606
312-294-0501 | Direct: 312-356-3750 | Fax: 312-294-0003
www.kjww.com

Pravin,

I'm attaching a screen capture from a building I modeled (yes, that system setup was heinous and produced terrible results - it wasn't my doing) that shows the OA settings based on 62.1 requirements. 

Let me know if that doesn't simplify your process.

Eric

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pravin Wakode
Sent: Tuesday, March 31, 2009 4:50 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] ASHRAE 62.1 cfm/person

Hi All,
        This query is related to HVAC Ventilation used in equest. As per ASHRAE 62.1 Ventilation rates are specified based on per person and per sqft basis for example if I consider a office area the ventilation rates would be 5 cfm/person + 0.06 cfm/sqft.
Equest doesnt allow you to enter the ventilation rate based on sqft basis.
I  am calculating the ventilation rate manully (using per-person + per-sqft basis) and then dividing it by total occupancy and arriving at the cfm/person value which is to be entered in Equest.
Is this procedure correct???
Regards,
Pravin Wakode

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