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2.9.2 Vapor-Liquid Equilibrium

In dry spinning applications, the solvent in the fiber is in thermodynamic equilibrium with the solvent vapor in the surrounding fluid. The saturation vapor pressure of the solvent is computed using an Antoine-type equation


p_{s,vap} = e^{\left(A+\frac{B}{T_f+C}\right)} (2.9-4)

If the user enables the vapor-liquid equilibrium given by Flory [ 1], Equation  2.2-3 is used to compute the mole fraction of the solvent in the surrounding gas.

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