DESIGN II v16.24 is WinSim Inc.’s steady-state process simulator for chemical and hydrocarbon processes. With over 2,000 active users worldwide, it serves the refining, petrochemical, gas processing, and pipeline industries .
Key Features
Extensive Component & Thermodynamic Libraries
- 60+ thermodynamic methods and 1,200+ pure component database
- 38 pre-characterized world crudes with ASTM D-86/D-1160/TBP distillation curve support
- ChemTran module: Regress and predict thermophysical properties for custom components
Unit Operations & Column Modeling
- Rigorous distillation columns: tray-by-tray hydraulics, tower sizing, and mixed amine rate-based absorbers
- Refinery distillation: integrated side strippers and pumparound calculations
- Heat exchanger rating: single-phase, two-phase, air-cooled, and plate-fin exchangers
- Reactor models: CSTR, plug flow, equilibrium (Gibbs), hydrotreater, and synthesis reactors
Core Simulation Capabilities
- Gas processing: NGL/LNG plants, CO₂ hydrate prediction, amine treating (MEA, DEA, MDEA blends)
- Pipeline applications: line sizing, two-phase flow, slug flow analysis, hydrate prediction
- Flowsheet size: up to 9,999 units and streams with 1,000 components per simulation
- Advanced features: inline FORTRAN, flowsheet optimization, case studies, and Visual Basic/C++ interface for custom integration
User Experience
- Graphical point-and-click interface with instant usability—no special training required
- Microsoft Office integration: export results to Excel and paste into other Windows applications
- Complete PFD creation: draw flowsheet, specify conditions, execute simulation, examine results
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