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Re: [EnergyPlus_Support] Load

At 01:52 PM 6/17/2004, Hannah Yan wrote:
>What is the difference between Zone/Sys Sensible Load
>Predicted and  Zone/Sys Sensible Cooling Rate ( or
>heating rate)?

The predicted Load is the load that would be necessary to bring the current 
zone conditions to the setpoint.

The Zone/Sys Sensible Cooling Rate is the actual amount of heating or 
cooling the system could provide with its given capacities in that time step.

If the predicted is not equal to the corrected than most likely the system 
was not large enough, but there are times when due to things like outside 
air that it can be larger than predicted.  Whatever is not handled in the 
given time step will be addressed in the next time step.  If the system is 
not large enough this would show up as a higher temperature in the zone 
than the setpoint.

>Why is ZONE1:Zone/Sys Moisture Load Rate
>Predicted[kgWater/sec] zero?

This means that there is NO Humidistat assigned for that zone.  Without a 
Humidistat there is no setpoint and thus no predicted moisture load.

Dr. Richard Liesen
Associate Director, Building Systems Laboratory
Department of Mechanical and Industrial Engineering
University of Illinois at Urbana-Champaign

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