Dear Vinay,
Try reporting the airflow and fan power to see if it’s the value you specify or 7x that value. I have not used the zone multiplier, but I’m guessing that it multiplies CFM in the same magnitude as the multiplier, so you now may have a fan at 7 x 7 = 49x.
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 Vinay Devanathan
Sent: Wednesday, September 07, 2011 6:04 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Zone/Floor Multiplier
Hello,
I am seeing very high fan power on one of my simulations and hence wanted to check for this issue.
Let's say there are 7 typical floors and one zone is created and a Zone Group object is used to replicate the 7 floors using a multiplier. Now in all of those zones, the zone loads will be calculated and multiplied by a factor of 7. So in order to satisfy this zone should we input the designed zone CFM * 7 in the input field for HVAC objects or input just the designed
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