DWSIM Development Blog

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About DWSIM

DWSIM is an open-source, steady-state chemical process simulator written in VB.NET. It has a HYSYS-like interface with many of the features present in commercial simulators:

- Thermodynamic models: Peng-Robinson, Peng-Robinson with Volume Translation and Immiscible Water, Soave-Redlich-Kwong, Lee-Kesler, Lee-Kesler-Plöcker, UNIFAC, Modified UNIFAC (Dortmund), UNIQUAC, NRTL, Chao-Seader, Grayson-Streed and Ideal Gas;

- Unit Operations: Mixer, Splitter, Separator, Pump, Compressor, Expander, Heater, Cooler, Valve, Pipe Segment, Shortcut Column, Heat Exchanger, Reactors, Component Separator, Orifice Plate, Distillation and Absorption Columns;

- Utilities: Phase Envelope, Hydrate Calculations, Pure Component Properties, Critical Point, PSV Sizing, Vessel Sizing, Spreadsheet and Petroleum Cold Flow Properties;

- Tools: Hypothetical Components Generator, Bulk C7+ and Distillation Curves Petroleum Characterization, Reactions Manager and
Component Creator.

- Process Analysis: Multivariate Constrained Optimization and Sensitivity Analysis utility.