| CalcPsychrometricsFromTWetBulb {psychrolib} | R Documentation |
Calculate psychrometric values from wet-bulb temperature.
Description
Utility function to calculate humidity ratio, dew-point temperature, relative humidity, vapour pressure, moist air enthalpy, moist air volume, and degree of saturation of air given dry-bulb temperature, wet-bulb temperature, and pressure.
Usage
CalcPsychrometricsFromTWetBulb(TDryBulb, TWetBulb, Pressure)
Arguments
TDryBulb |
A numeric vector of dry-bulb temperature in degreeF [IP] or degreeC [SI] |
TWetBulb |
A numeric vector of wet-bulb temperature in degreeF [IP] or degreeC [SI] |
Pressure |
A numeric vector of atmospheric pressure in Psi [IP] or Pa [SI] |
Value
A list with named components for each psychrometric value computed:
- HumRatio
Humidity ratio in lb_H2O lb_Air-1 [IP] or kg_H2O kg_Air-1 [SI]
- TDewPoint
Dew-point temperature in degreeF [IP] or degreeC [SI]
- RelHum
Relative humidity in range [0, 1]
- VapPres
Partial pressure of water vapor in moist air in Psi [IP] or Pa [SI]
- MoistAirEnthalpy
Moist air enthalpy in Btu lb-1 [IP] or J kg-1 [SI]
- MoistAirVolume
Specific volume of moist air in ft3 lb-1 [IP] or in m3 kg-1 [SI]
- DegreeOfSaturation
Degree of saturation [unitless]
Examples
SetUnitSystem("IP")
CalcPsychrometricsFromTWetBulb(80:100, 65.0, 14.696)
SetUnitSystem("SI")
CalcPsychrometricsFromTWetBulb(25:40, 20, 101325.0)