[BLDG-SIM] Supermarket refrigeration modelling questions

["Brian Fountain" <brian.fountain@xxxxxxxxxxxxxxxxxxx>]

I am working on a simulation of a supermarket using DOE2.1e and using the refrigeration model.  I have two questions regarding the effect of humidity on the refrigeration system.  Firstly, when the fans are off, humidity is not reported in the SS-N as it uses return air humidity.  What does the refrigeration model use for space humidity during the periods when the fan is off?

 

More fundamentally, how is humidity data reflected in the refrigeration energy simulation?  Does the defrost energy reduce with reduced humidity? How is the compressor energy reduced with reduced space humidity?

 

Many thanks!

 

Brian Fountain, P.Eng
Energy Engineer
 
Energy Advantage Inc.
690 Dorval Dr., Suite 400
Oakville, ON L6K 3W7
phone:  (905) 337-2205 ext. 250
fax:      (905) 337-2209
 
brian.fountain@xxxxxxxxxxxxxxxxxxx <mailto:brian.fountain@xxxxxxxxxxxxxxxxxxx>

 

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