Vapor Liquid Equilibrium (VLE)

This application provides Vapor–Liquid Equilibrium (VLE) calculations for pure components and multicomponent mixtures, designed for chemical engineers, researchers, and students. Key features: • Flash calculations • Bubble and dew point pressure • Bubble and dew point temperature • Pure-component saturation pressure and saturation temperature Thermodynamic models: • Peng–Robinson (PR) equation of state • Soave–Redlich–Kwong (SRK) equation of state • Raoult’s law (ideal systems) The app includes data for 960 chemical components, collected from open-source and publicly available references. Binary interaction parameters (kᵢⱼ) can be specified for PR and SRK models. If not provided, kᵢⱼ values are assumed to be zero. Disclaimer: This application is intended for educational and preliminary engineering calculations. No warranty is provided regarding the accuracy or completeness of the results. Users should independently verify all results before using them for industrial or safety-critical applications.