RE: [EnergyPlus_Support] static pressure setpoint

[Clifford Federspiel <cf@xxxxxxxxxxxxxxxxxxxxxx>]

The "Delta Pressure" variable is not the same as the supply duct static 
pressure or the static pressure setpoint. According to the documentation, 
Delta Pressure is "The pressure rise in Pascals at full flow and standard 
(sea level) conditions (20o C and 101325 Pa)."

Is Delta Pressure the static pressure or the total pressure? From an 
offline conversation about this subject, my understanding now is that 
EnergyPlus doesn't compute duct pressures. If that is true, then what does 
EnergyPlus do with Delta Pressure? If it is false, then can duct pressure 
be the control variable of a Controller object?

At 08:57 AM 5/12/2006, you wrote:
>the static pressure is set in the fan object.  Note that it is a constant.
>
>
>
>-----Original Message-----
>From: EnergyPlus_Support@xxxxxxxxxxxxxxx 
>[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of Clifford Federspiel
>Sent: Friday, May 12, 2006 9:31 AM
>To: EnergyPlus_Support@xxxxxxxxxxxxxxx
>Subject: [EnergyPlus_Support] static pressure setpoint
>
>
>How do I set the supply duct static pressure setpoint of a VAV system?
>
>
>Clifford Federspiel, PhD, PE
>Principal, Federspiel Controls, LLC
>828 San Pablo Avenue, Suite 115E, Albany, CA  94706-1693
>v: 510-418-3392 | f: 510-526-4309 | cf@xxxxxxxxxxxxxxxxxxxxxx
>www.federspielcontrols.com
>
>
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