Defining CO2 levels inside thermal zone and Control it

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I want to model the respiration of mushrooms inside a chamber. It is not similar to "People" object. In partcular time of the day, the CO2 level will be changed. Also, I need to control this CO2 level, using ventilation to keep it into optimum level, without any changes of the cooling and heating load.

How can I do it in OpenStudio or EnergyPlus?