Re: [EnergyPlus_Support] Re: Severe errors for Fan Power modeling of VAV system

[Alvaro Urrutia <alvaro.urrutia@xxxxxxxxx>]

 

Also, Once I mistakenly had a zero in the place of a proper setpoint on the Winter DesignDay.  One number among thousands!

 

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 Jean marais
Sent: Tuesday, October 18, 2011 12:49 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Severe errors for Fan Power modelling of VAV system

 

 

I bet the coil setpoints are too low because the coils are auto sized and the user specified airflow is too little to achieve the needed cooling with a normal coil working at setpoints between 12 and 18 deg C. The program is trying to cool very little air very cold to bring enough "cold energy" into the room.

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