Dear Vinay,
One of the idiosyncrasies of autosizing in E+ is that it sizes EACH chiller for the TOTAL load. You may not have noticed that the 2nd chiller never operated, but I suspect that was the case.
You’ll have to size them manually for the capacity you desire. Use the capacity of ONE chiller as the total capacity required for your building.
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: Sunday, July 24, 2011 11:53 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Chiller Sizing
Hello All,
I simulated a model initially with two Chillers, which were equally sized (autosized and obtained from the simulation output).
I added a third Chiller to reduce the load on each, thinking each Chiller will be sized for a lesser capacity as the load will be split in three instead of two.
But, from the output I get, all three Chillers are now sized to the same exact capacity (to what I had when there were two Chillers). Is there anything obvious that I
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