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DWSIM download


Version: 6.4.9 | Size: 148.00 MB
Top Download Club  |  Graphic Apps  |  CAD  |  DWSIM

Developer's description:

DWSIM is a Chemical Process Simulator for Windows, Linux and Mac. Built for the Microsoft .NET 2.0 and Mono Platforms and featuring a rich Graphical User Interface (GUI), DWSIM allows chemical engineering students and chemical engineers to better understand the behavior of their chemical systems by using rigorous thermodynamic and unit operations' models with no cost at all. Even better, they can see how the calculations are actually being done - DWSIM is open source, that is, its code is available to anyone who wishes to discover the "magic" behind it or just do some code browsing.

DWSIM is intended for both chemical engineering students and professional chemists, allowing them to run simulations and get a better understanding on a phenomenon. Its main advantage is that it allows them to conduct experiments and analyze data using advanced models and operations, without any cost. The simulator enables you to manage the material streams and design a schematic representation of the entire mechanism with the help of the rich object library. The result can be easily sent to the clipboard and pasted in other programs as and image. It features automatic error detection, customizable parameters for each item and PH calculation for all the compounds.

DWSIM is capable of generating distillation curves petroleum characterizations and helps you create new compounds that can be used in experiments, along with the existing ones. Also, it can be used for performing data regression studies for two compounds using various thermodynamics models and methods, generating conclusive graphs that can be exported to other applications.


Thermodynamic Models: Peng-Robinson, Peng-Robinson with Volume Translation, Soave-Redlich-Kwong, Lee-Kesler, 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, Conversion Reactor, Equilibrium Reactor, PFR, CSTR, Distillation Column, Simple, Refluxed and Reboiled Absorbers.
DWSIM also provides special information about the simulation and different means of inputting user data through Utilities and Tools:
Utilities: Phase Envelope, Hydrate Calculations, Pure Component Properties, True Critical Point, PSV Sizing, Vessel Sizing, Spreadsheet and Petroleum Cold Flow Properties
Tools: Hypothetical Component Generator, Bulk C7+/Distillation Curves Petroleum Characterization, Reactions Manager and User Component Creator
Process Analysis and Optimization: Sensitivity Analysis Utility, Multivariate Optimizer with bound constraints.

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Open Source


File size:
148.00 MB

Last update:

Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64

Last version:
Last versions of DWSIM
Version Change log
DWSIM 6.4.9 Apr 30, 2021 Implemented feature request #126: Dynamics Integrator pause and resume (Classic UI)
New Separator Filler Utility (Dynamics)
Fixed issue #138: Flowsheet can't be saved
Fixed issue #137: Estimate Pipe Overall Heat Transfer Coefficient
Fixed issue #130: Stream Enthalpy not being correctly set by CAPE-OPEN Property Packages
Fixed issues with Seawater Property Package
Fixed drawing of some PFD Objects
Fixed Switch logical block behavior
Fixed active/inactive buttons not updating status in object editors (Classic UI)
Fixed Integrator results sheet formatting
Dynamics Volume-Temperature (VT) Flash fixes
Fixed distance units handling (Classic UI)
Fixed Liquid-Liquid Extraction column not working
DWSIM 6.4.7 Mar 31, 2021 New Database with Food Compounds (https://github.com/Spogis/DWSIMFoodProp)
Updated CoolProp libraries to v6.4.1
Grouped all Property Package editors in a single window (Classic UI)
Exposed CSTR's Vapor Residence Time and Headspace
Added an option to import compound data into Compound Creator from JSON files
Fixed issues with some flash algorithms
Fixed issues with Compound Creator
Fixed Gibbs/Equilibrium/Conversion Reactor mixed-phase product enthalpies
Fixed a bug with solids handling
Fixed a bug in Seawater Property Package
General UI Fixes
DWSIM 6.0 Update 5 Jul 6, 2020 [NEW] Added new Automation interface (Automation2), works on Linux and macOS
[FIX] Fixed Energy Stream editor (Classic UI)
[FIX] Fixed a bug with Black Oil Property Package
[FIX] Fixed Compound Creator's Liquid Cp regression (Classic UI)
[FIX] Fixed PFD definition on macOS when using CPU Renderer
[FIX] Other fixes and enhancements
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