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About WinSim
WinSim has developed and marketed DESIGN II for Windows, a steady-state process simulator, since 1995 when the company purchased the rights to the program from ChemShare Corporation. WinSim has over 1,000 active users of DESIGN II throughout the world. The company is based in Sugar Land, Texas.

About DESIGN II for Windows
Rigorous Process Simulation for Chemical and Hydrocarbon Processes including Refining, Refrigeration, Petrochemical, Gas Processing, Gas Treating, Pipelines, Fuel Cells, Ammonia, Methanol, Sulfur and Hydrogen Facilities

50+ Thermodynamic Methods / 900+ Component Database
Crude and Multi-Component Distillation Towers
Flash Vessel sizing / 2 phase heat Exchanger Rating
Three Phase Thermodynamic Calculations
Crude Feed Specifications (ASTM D-86/1160, TBP)
ChemTran Data Regression and Property Constants
Automatic Output to Microsoft Excel
Visual Basic / Visual C++ interface
Inline Fortran / Process Optimization

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Latest News

March 19, 2008
Free introductory training is available on Friday, June 6, 2008... More

March 17, 2008
Documentation for DESIGN II for Windows has been updated... More

February 18, 2008
The DESIGN II for Windows brochure has been updated... More

February 14, 2008
Version 9.52 of DESIGN II for Windows is available... More

February 12, 2007
WinSim has moved to a new office location... More


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