Homero,
Setting the flow is the only reasonable method unless you have measured the outdoor airflow at different damper positions. Damper position and airflow are NOT linear and NOT easily predictable; they vary a lot according to many parameters and can range from approximately linear to approximately quadratic.
Make your best estimate of airflow and simulate that (or perhaps a range of “best estimates”) to assess the sensitivity.
The Building Performance Team
James V. Dirkes II, P.E., BEMP , LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Homero Noboa
Sent: Tuesday, March 27, 2012 9:11 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Re: How can I simulate a stuck open economizer?
Dr. Li, Richard, and all.
Thanks for your attention.
No, I do not want to simulate the damper stuck only for a period of time. I do want to see the behavior and more important, the energy consumption for the full year's operation of the stuck damper.
Regarding your message. when you say "schedule the OA to the 'stuck' value...", do you mean to set the Controller:OutdoorAir>Min Outdoor Air Flow Rate to the design value (as I am doing)? Or, do you
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