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Re: [EnergyPlus_Support] Fan Pressure Rise in ZoneVentilation: DesignFlowRate

"Fan Pressure Rise" represents the total pressure rise (increase) 
through the fan needed to produce the specified air flow rate through 
all components.... including resistance due to ductwork, dampers, 
grilles, etc.


Lixing Gu wrote:
> The field "Fan Pressure Rise" is used to calculate the ventilation fan power
> only when the choice of the filed Ventilation Type is either Exhaust or
> Intake.
>
> Thanks.
>
> Lixing Gu 
>
> -----Original Message-----
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Evgeny
> Sent: Tuesday, August 03, 2010 5:27 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Fan Pressure Rise in ZoneVentilation:
> DesignFlowRate
>
> Hello. I am designing the "ZoneVentilation: DesignFlowRate".
> Is the Field "Fan Pressure Rise" includes the pressure drop in the duct, or
> only the resistance of the Fan?
> if the "Fan Pressure Rise" - is the pressure in the duct, then:
> 1. Is there a way to estimate the approximate resistance of the duct?
> 2. If I change the flow in the duct, then I have to change resistance in the
> duct accordingly?
> Thanks.
>
>   



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