Re: [EnergyPlus_Support] ZoneContaminantSourceAndSink:CarbonDioxide outputs

["Julien Marrec julien.marrec@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Hello,

What did you input for the object in question? It generates Co2 for a zone based on a carbon generation design rate multiplied by a schedule. Cf I/O reference guide https://bigladdersoftware.com/epx/docs/9-2/input-output-reference/group-internal-gains-people-lights-other.html#zonecontaminantsourceandsinkcarbondioxide

So if you put something non zero in there, it's normal you're seeing this.

Julien

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Julien Marrec, EBCP, BPI MFBA

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On Mar 10, 2020, at 17:42, "Belleri Annamaria annamaria.belleri@xxxxxxxxx [EnergyPlus_Support]" <energyplus_support@xxxxxxxxxxxxxxx> wrote:

 

Dear group members,

I am modelling CO2 generated by people within a thermal zone through the ZoneContaminantSourceAndSink:CarbonDioxide. I have set the carbon dioxide generation rate as 0 in people object and I have no electric equipment generating carbon dioxide in my model.

According to the description in the input/output reference, I would expect that the following two outputs report same amount of generated CO2:

• Contaminant Source or Sink CO2 Gain Volume Flow Rate [m3/s]
• Zone Contaminant Source or Sink CO2 Gain Volume Flow Rate [m3/s]

However Zone Contaminant Source or Sink CO2 Gain Volume Flow Rate reports higher CO2 gains compared to the first output mentioned. Here is a plot comparing both outputs:

 

Could you please explain that?

Thank you

Kind regards

 

 

 

 

 

Annamaria Belleri, PhD

Eurac Research

 

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Institute for Renewable Energy 

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Posted by: Julien Marrec <julien.marrec@xxxxxxxxx>

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