VLE + Enthalpy-concentration Diagram Generator

This VLE generator calculates binary vapor-liquid equilibrium using the Soave-Redlich-Kwong, Peng-Robinson, and Almajose-Dalida equations of state across several mixing-rule formulations. It supports classical EOS mixing rules, database or manually supplied binary interaction parameters, and activity-coefficient coupling through Modified UNIFAC, including MHV1 for Soave-Redlich-Kwong and Modified HVOS for the Almajose-Dalida equation of state. Pure-component properties are retrieved from the associated thermodynamic databases, while phase-equilibrium curves are traced using adaptive continuation and refinement methods.

In addition to T-x-y, P-x-y, and x-y phase-equilibrium diagrams, the generator produces H-x-y diagrams by calculating the saturated-liquid and saturated-vapor enthalpy curves along the vapor-liquid equilibrium envelope using DIPPR ideal-gas heat-capacity correlations together with EOS departure enthalpies. Model parameters, mixing-rule information, calculation details, and generated equilibrium data can be inspected directly within the application, with high-resolution plot export and tabulated results available for further analysis.