Air humide   

Air humide



Humid air always contains dry air and steam. Once the saturation is exceeded water droplets and ice occur. The calculations presented are limited to relative saturation up to 100%. In good approximation dry air and steam can be regarded as ideal gases. The calculations are valid for humid air at ambient pressure and temperatures between 5 - 70 [°C].
  1. Enter volume flow of humid air. Mass flow of dry air is assumed to stay constant.
  2. Enter temperature of humid air.
  3. Enter ambient pressure.
  4. Enter relative humidity.
Missing values for state 2 will automatically be completed with values of state 1.
The dew point of a humid air is the temperature at which its realive humidity reaches 100%. Relative humidity equals 100%, if the partial pressure of steam equals its saturation pressure.

Base du calcul
Air humide 1* Air humide 2 Delta
Débit volumétrique m³/h
Température ambiante ºC
Pression ambiante mbar,abs
Humidité relative %
Pression de saturation vapeur d'eau mbar,abs
Pression partielle vapeur d´eau mbar,abs
Pression partielle air sec mbar,abs
Densité air humide kg/m³
Masse vapeur d´eau / Masse air sec (x) kg/kg
Masse vapeur d´eau / Volume air humide kg/m³
Masse air sec / Masse air humide kg/kg
point de rosée ºC
Flux de mass air sec kg/h
Flux de mass vapeur d´eau kg/h
Flux de mass kg/h
Enthaplie / Masse air sec (h1+x) kJ/kg
débit de chaleur kW




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