This application discloses an isothermal and isobaric
flash evaporation calculation method, apparatus, electronic device, and storage medium. Specifically, it involves acquiring multiple
system parameters of a non-
ideal system, estimating the
phase equilibrium constant of the non-
ideal system to obtain an initial value for the
phase equilibrium constant; based on a gas-liquid two-phase
flash evaporation model, the initial value, and multiple
system parameters, analyzing whether the feed exhibits liquid-
phase stability; if the feed does not exhibit liquid-
phase stability, analyzing whether the feed exhibits gas-
phase stability; if the feed does not exhibit gas-phase stability, performing gas-liquid two-phase
flash evaporation calculations on the feed, obtaining and outputting the calculation results. Compared to existing technologies, this application enables the calculation results to more closely approximate actual conditions.