CoolProp: Mathematica wrapper: Psychrometrics (humid air): When obtaining the dew point temperature 'Tdp' at the pressure 'P', humidity ratio 'W', and dry bulb temperature 'Tdb', the 'Tdb' value will be "ignored" but MUST be within a sensible range!

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The dew point temperature (key 'Tdp' in CoolProp) only strictly depends on the pressure 'P' and the humidity ratio 'W'. But the CoolProp wrapper API for Mathematica requires a 3rd input argument. If the dry bulb temperature 'Tdb' is used, it will be essentially "ignored" (the value does not affect the result), however it MUST be within a sensible range compatible with the psychrometric chart, or the CoolProp wrapper returns Infinity.
Relates to
SysML4Mathematica: Example 10: Condition and dehumidify air by chilling and condensing some moisture: Process table
Related notes
[CAVEAT, GOTCHA, ISSUE, LIMITATION, WARNING]{INFORMATIVE} CoolProp: HOWTO reproduce a pressure vs specific enthalpy chart in Mathematica. Example: R32 refrigerant.
[CAVEAT, GOTCHA, ISSUE, LIMITATION, WARNING]{INFORMATIVE} CoolProp: LIMITATION: DOES NOT accept specific enthalpy 'H' and vapor quality 'Q' as input pairs
[ISSUE, LIMITATION, WARNING]{INFORMATIVE} CoolProp: Mathematica: Mac: HOWTO get CoolProp for Mathematica running on Apple M1 Max and Mathematica13
[ISSUE, LIMITATION] Mathematica: CoolProp wrapper binaries don't seem to be maintained past CoolProp 5.1.1 (and the PhaseSI and 2-args Props1SI functions do not work)
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Visit also
SysML4Mathematica: Psychrometrics (humid air physics) Air Conditioning scenarios in graphical Systems Modeling Language (SysMLv1.x) and Mathematica
Visit also (backlinks)
External links
http://www.coolprop.org/fluid_properties/HumidAir.html