Add a Mass Transfer node to include mass transfer from the gas to the liquid.
Select a Mass transfer model —
Two-film theory,
Nonequilibrium model, or
User defined. For
User defined enter a value or expression for the
Mass transfer from gas to liquid mgl (SI unit: kg/(m
3·s)). The default is 0 kg/(m
3·s).
For Nonequilibrium model enter values or expressions for each of the following:
For Two-film theory enter values for the
Mass transfer coefficient k (SI unit: m/s),
Henry’s constant H (SI unit: Pa·m
3/mol), the
Dissolved gas concentration c (SI unit: mol/m
3), and the
Molecular weight of species M (SI unit: kg/mol). Refer to the theory below for more information.
where H is Henry’s constant. The molar flux per interfacial area,
N (SI unit: mol/(s·m
2)), is determined by
where k is the Mass transfer coefficient and
c is the Dissolved gas concentration in liquid.
where M is the Molecular weight of species
and
a is the interfacial area per volume (SI unit: m
2/m
3).