Reply To: Mass conservation vs inflow and outflow

[SRP]

Hi,

For conservation of mass to hold true, there needs to be an equivalent mechanism allowing air to replace what is being extracted. Conservation of mass still applies even if there is no natural opening and an extract fan is removing 3 m³/s of air. In this situation, since mass cannot be created or destroyed, for the conservation of mass to hold, there must be an equivalent inflow or compensatory mechanism to replace the air being extracted.