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Openstudio Baseline Chiller COP
 
  
 
  
 
 
 
 
 
 
    
        
        asked 5 years ago  
 
 EnergyPlus question's avatar  
 
 
 
 
    
        
        updated 5 years ago  
 
 __AmirRoth__'s avatar  
 
 
 
 
 
I am confused about which parameter I should use when deciding the baseline chiller COP through the EnergyPluse report.
Should I use (a) cooling coils: Nominal total Capacity or use (b) Annual and peak values - Cooling: Cooling Maximum Value (CoolingCoils:PlantLoopCoolingDemand).  The value from option (b) for my model is around 20% smaller than the value from option (a).  That is why I got confused about which value to use.
 
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        answered 5 years ago  
 
 mdahlhausen's avatar  
 
 
 
 
 
Are you interested in average chiller COP from the annual simulation or chiller COP at rated conditions?
 
Chiller values are listed under the Central Plant table in the Equipment Summary report.  There are IPLV values and nominal efficiency.  If you want run time efficiency, use the Chiller COP Output:Variable.
 
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        Asked:  5 years ago  
 
 
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        Last updated: Jul 11 '19 
 
 
 
 
 
 
 
 
 
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