GetTDewPointFromTWetBulb Function

  1. psychrolib.f90
  2. psychrolib
  3. GetTDewPointFromTWetBulb

public function GetTDewPointFromTWetBulb(TDryBulb, TWetBulb, Pressure) result(TDewPoint)

Return dew-point temperature given dry-bulb temperature, wet-bulb temperature, and pressure. References: ASHRAE Handbook - Fundamentals (2017) ch. 1

Arguments

Type IntentOptional AttributesName
real, intent(in) :: TDryBulb

Dry-bulb temperature in °F [IP] or °C [SI]
real, intent(in) :: TWetBulb

Wet-bulb temperature in °F [IP] or °C [SI]
real, intent(in) :: Pressure

Atmospheric pressure in Psi [IP] or Pa [SI]

Return Value real

Dew-point temperature in °F [IP] or °C [SI]


Calls

proc~~gettdewpointfromtwetbulb~~CallsGraph proc~gettdewpointfromtwetbulb GetTDewPointFromTWetBulb proc~gethumratiofromtwetbulb GetHumRatioFromTWetBulb proc~gettdewpointfromtwetbulb->proc~gethumratiofromtwetbulb proc~gettdewpointfromhumratio GetTDewPointFromHumRatio proc~gettdewpointfromtwetbulb->proc~gettdewpointfromhumratio proc~getsathumratio GetSatHumRatio proc~gethumratiofromtwetbulb->proc~getsathumratio proc~isip isIP proc~gethumratiofromtwetbulb->proc~isip proc~gettdewpointfromvappres GetTDewPointFromVapPres proc~gettdewpointfromhumratio->proc~gettdewpointfromvappres proc~getvappresfromhumratio GetVapPresFromHumRatio proc~gettdewpointfromhumratio->proc~getvappresfromhumratio proc~getsatvappres GetSatVapPres proc~getsathumratio->proc~getsatvappres proc~gettdewpointfromvappres->proc~isip proc~dlnpws_ dLnPws_ proc~gettdewpointfromvappres->proc~dlnpws_ proc~gettdewpointfromvappres->proc~getsatvappres proc~dlnpws_->proc~isip proc~gettrankinefromtfahrenheit GetTRankineFromTFahrenheit proc~dlnpws_->proc~gettrankinefromtfahrenheit proc~gettkelvinfromtcelsius GetTKelvinFromTCelsius proc~dlnpws_->proc~gettkelvinfromtcelsius proc~getsatvappres->proc~isip proc~getsatvappres->proc~gettrankinefromtfahrenheit proc~getsatvappres->proc~gettkelvinfromtcelsius

Contents

Source Code

GetTDewPointFromTWetBulb

Source Code

  function GetTDewPointFromTWetBulb(TDryBulb, TWetBulb, Pressure) result(TDewPoint)
    !+ Return dew-point temperature given dry-bulb temperature, wet-bulb temperature, and pressure.
    !+ References:
    !+ ASHRAE Handbook - Fundamentals (2017) ch. 1

    real, intent(in)  ::  TDryBulb
      !+ Dry-bulb temperature in °F [IP] or °C [SI]
    real, intent(in)  ::  TWetBulb
      !+ Wet-bulb temperature in °F [IP] or °C [SI]
    real, intent(in)  ::  Pressure
      !+ Atmospheric pressure in Psi [IP] or Pa [SI]
    real              ::  TDewPoint
      !+ Dew-point temperature in °F [IP] or °C [SI]
    real              ::  HumRatio
      !+ Humidity ratio in lb_H₂O lb_Air⁻¹ [IP] or kg_H₂O kg_Air⁻¹ [SI]

    if (TWetBulb > TDryBulb) then
      error stop "Error: wet bulb temperature is above dry bulb temperature"
    end if

    HumRatio  = GetHumRatioFromTWetBulb(TDryBulb, TWetBulb, Pressure)
    TDewPoint = GetTDewPointFromHumRatio(TDryBulb, HumRatio, Pressure)
  end function GetTDewPointFromTWetBulb