feos.PhaseEquilibrium.ph_flash¶

static PhaseEquilibrium.ph_flash(eos, pressure, molar_enthalpy, feed, initial_temperature, max_iter=None, tol=None, verbosity=None)¶

Create a liquid and vapor state in equilibrium for given pressure, enthalpy and feed composition.

Can also be used to calculate liquid liquid phase separation.

Parameters:

• eos (EquationOfState) – The equation of state.

• pressure (SINumber) – The system pressure.

• molar_enthalpy (SINumber) – The molar enthalpy of the system.

• feed (float | SINumber | numpy.ndarray[float] | SIArray1 | list[float]) – Feed composition.

• initial_temperature (SINumber) – The system temperature.

• max_iter (int, optional) – The maximum number of iterations.

• tol (float, optional) – The solution tolerance.

• verbosity (Verbosity, optional) – The verbosity.

Return type:

PhaseEquilibrium

Raises:

RuntimeError – When pressure iteration fails or no phase equilibrium is found.