Psychrometrics: Calculations of the mass flow rate of the dry air component (assumed constant under steady state) from the ENTRY volumetric flow rate of the humid air mixture MUST use the INITIAL state variables!

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There are special cases where the volumetric flow rate of the humid air mixture does not change, but typically, it may, while the mass flow rate of the dry air component is usually treated as constant under steady state (no loss of dry air from the system):

Visit also: Psychrometrics: The volumetric flow rate of a humid air mixture MAY change between a State1 and State2 (but the mass flow rate of dry air does not under steady state)! This is sometimes "glossed over" in some online calculators and less formal guides.
Relates to
Example 11: Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air
SysML4Mathematica: Example 08a: Humidification: Drying lumber with air: required volumetric air flow rate
SysML4Mathematica: Example 11 [A] Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air: Using CoolProp wrappers and SysML Parametric Diagrams
SysML4Mathematica: Example 11 [B]: Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air: Using Webel MPsy objects and SysML Activity Diagrams
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[ASSERTION, GOTCHA, TIP]{INFORMATIVE} Psychrometrics: The volumetric flow rate of a humid air mixture MAY change between a State1 and State2 (but the mass flow rate of dry air does not under steady state)! This is sometimes "glossed over" in some online calculators and less formal guides.
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