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[EnergyPlus_Support] Outputs



Hi everybody,
   
  I am having a look at some of the EPlus outputs and would like to check couple of things about them.
   
  1) Report variable: Zone/sys sensible cooling energy 
  
According to the Input/output reference guide this refers to the sensible energy supplied by the system to the zone reporting the cooling delivered by the HVAC to the zone. It does not always indicate the operation of the cooling coil. It says that if supply air is cooled by outside air it will be reported as a cooling load even if the coils are off. 
  
On that note my question is: if I am using Purchased Air with no outside air, just recirculation, BUT I am defining a ventilation object the zone/sys cooling energy will be reported only when the coils are ON ? I ask that because I do have air from the outside that might be cooling the zone - as I specified a ventilation object - but this air is not influencing the supply air as it is not being mixed with the return air of the Purcahsed Air - it is being delivered to the zone directly. Would the zone/sys cooling energy be reporting a cooling load with the coils off, even if there is a ventilation object assigned to the zone, if the Outside air is set to "NO" in the purchased air object? 
   
  2) Report variable: Zone/sys sensible load to cooling setpoint predicted
  
According to the documentation this variable reports the predicted sensible load required to meet the setpoint. Again will this variable refers to the loads due to the coils ON or all the cooling loads being delivered when I simulate using a Purchased Air object?
   
  3) Report variable: Ventilation loads reports
  
I noticed that there are new report variables in version 1.3 refering to ventilation loads. I tried to use them with the same settings, Purchased air objects, no outside air specified for it BUT ventilation objects being used instead. I got null values fro all the variables refering to the ventilation reports. Do these reports only refer to ventilation loads when specified through oustide air objects? If I use the ventilation object only - even with mechanical ventilation sets - this variables will report me null values - is that correct?
   
  I wanted to check that because I would like to isolate cooling loads due to coils on from cooling loads due to ventilation only - but setting this ventilation separately from my ideal machine. Would this be possible in any way?
   
  Thanks a lot for the help
   
  Best regards, 
   
  Clarice


 		
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