GetHumRatioFromEnthalpyAndTDryBulb {psychrolib}

Return humidity ratio from enthalpy and dry-bulb temperature.

Description

Return humidity ratio from enthalpy and dry-bulb temperature.

Usage

GetHumRatioFromEnthalpyAndTDryBulb(MoistAirEnthalpy, TDryBulb)

Arguments

MoistAirEnthalpy

A numeric vector of moist air enthalpy in Btu lb-1 [IP] or J kg-1

TDryBulb

A numeric vector of dry-bulb temperature in degreeF [IP] or degreeC [SI]

Value

A numeric vector of humidity ratio in lb_H2O lb_Air-1 [IP] or kg_H2O kg_Air-1 [SI]

Note

Based on the GetMoistAirEnthalpy function, rearranged for humidity ratio.

References

ASHRAE Handbook - Fundamentals (2017) ch. 1 eqn 30.

Examples

SetUnitSystem("IP")
GetHumRatioFromEnthalpyAndTDryBulb(42.6168, 76:86)

SetUnitSystem("SI")
GetHumRatioFromEnthalpyAndTDryBulb(81316.0, 20:30)