[Equest-users] Unmet Load Hours

Bryce Munger BMunger at glumac.com
Mon Mar 21 14:58:14 PDT 2011


Hi All,

 

I have a question about unmet load hours that I have not seen before.
In the attached project, when I run the sim, the BEPS report says that
there are 542 unmet heating hours and 117 unmet cooling hours.  

 

To find what systems and zones are having issues, I look at the SS-R
reports and usually find that there are more hours reported at the
individual zone level than at the BEPS level due to concurrent unmet
hours.  

 

This project is the opposite for heating.  If I sum the SS-R unmet
heating hours, I get 6.  If you look at the BEPS, there are 543!  

 

Cooling is understandable with 171 hours from the SS-R reports and 117
from BEPS.

 

Has anyone seen this behavior before?  This is a building with Heat Pump
PVVT systems (really VRF systems, but that is handled later) and a
Makeup air unit providing OA to the PVVT systems.  None of the unmet
hours are from the MAU system.

 

Thanks for your help,

 

Bryce Munger
Sr. Energy Analyst

  <http://www.glumac.com/> 

________________________________

320 SW Washington, Suite 200
Portland, OR 97204-2640
T.  503.227.5280  F. 503.274.7674

Thinking. Inside the building.
www.glumac.com <http://www.glumac.com/>  
 

 

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