The data and information within DWSIM has been obtained from a wide variety of literature sources. While reasonable care has been exercised in the collection of data and testing of this software, the author and contributors of the DWSIM Project disclaims any warranty, expressed or implied, as to the accuracy or reliability of the data or calculations contained therein.
The results of calculations obtained from DWSIM yield approximate results, which will not always be suitable for every application. The software is designed for use by trained professional personnel and is not a substitute for sound professional judgment. It is the sole responsibility of the user to validate the data presented by DWSIM and to determine whether the results of this program are accurate and suitable for any specific purpose. No guarantee of accuracy or fitness for any purpose is expressed or implied.
The author and contributors strongly recommends that the data be checked against other sources and/or methods before use and application. DWSIM's author and its contributors shall not be held liable for any direct, indirect, consequential or incidental damages incurred through use of the data or calculations.
Support the Project
Previous donations have already been very helpful on supporting development of new features and bringing DWSIM to new platforms (Raspberry Pi, macOS, Android, iOS). As DWSIM becomes more mature, development efforts must go towards more complex, specific models and systems. As complexity increases, more effort (= time and money) is required.
By becoming a patron, you will support future development of DWSIM while getting access to exclusive support channels and features, including custom-made plug-ins/add-ins which won't be distributed to anyone else except you.
Become a Patron
DWSIM has a Patreon page where you can subscribe to donate a fixed, monthly amount and get exclusive rewards in return. The more you donate, the more rewards you'll get.
By becoming a patron, you will support future development of DWSIM while getting access to exclusive support channels and features, including mobile version unlock keys and custom-made plug-ins/add-ins which won't be distributed to anyone else except you. You can also participate on development polls and drive the path for future features.
Thank you for supporting DWSIM! Users get direct e-mail support.
Power Users get direct, 24/7 e-mail support and early access to updates. more information
Power Users benefits + Monthly Remote Desktop Support Sessions + Development Polls. more information
Advanced Users benefits + Exclusive Features. more information
Patron benefits + Custom Plug-In/Add-In. more information
Latest Desktop Release for Tier 2+ Patrons: v5.7 Update 6 (April 23, 2019)
Latest Desktop Release for everyone else: v5.7 Update 5 (April 10, 2019)
View the README file for the latest Desktop Release.
DWSIM is forever free and open source software! If you are a professional, please support current and future DWSIM development by subscribing to one of the membership tiers and get access to exclusive, additional features and stuff.
If you are a student, you can download installers for 32/64-bit Windows 7/8.1/10, 64-bit x86 Debian Linux and 64-bit macOS for free from the SourceForge Project Page. Support for you is available on the SourceForge Forums only.
Direct emails asking for help/support will be ignored.
Features by Version
VirtualBox VDI Image
|Classic User Interface (Windows Forms)|
|Cross-Platform User Interface (WPF/GTK+/Cocoa)|
|Supports CAPE-OPEN Unit Operations & Property Packages|
|24/7 email support|
|Early access to updates|
|Includes Advanced EOS Library|
|Includes Capital Cost Estimator Plugin|
|Availability (F = Free, S = Subscription))||F/S||F/S||S||F/S||F/S||F/S||F/S||S||F/S||S|
Administrator privileges are not required for the installation of DWSIM itself, but do are for .NET Type Libraries Registration (to enable Automation) and installation of the supplementary software. Requires Microsoft .NET Framework 4.7.1.
The Windows XP version requires .NET Framework 4.0 and includes the Classic User Interface only.
The software package installs DWSIM on Debian Linux distributions (i.e. Ubuntu), taking care of required dependencies. Tested on Ubuntu Desktop 16.04 only. Requires Mono Framework version 5.14 or newer to run.
The preconfigured Lubuntu 16.04 VirtualBox Disk Image contains DWSIM 5.3 and all required plus optional packages. You can update DWSIM on this VM by downloading and installing the Debian Software Package.
Linux (Classic UI + ChemSep)
This 7zip-compressed package contains a special Wine-enabled DWSIM version. It enables running simulations containing CAPE-OPEN objects like ChemSep and COCO Unit Operations on Linux systems. Requires wine-stable v3.0.3 or newer to work.
Complete Simulation Environment
This special VirtualBox VDI Disk Image contains a full installation of Ubuntu Mate 14.04 32-bit and allows you to run the Windows version of DWSIM (Classic UI) on any system through VirtualBox. Includes the full version of the Capital Cost Estimator Plugin, the Advanced EOS Library, ChemSep, Octave and other CAPE-OPEN software. With this version you can create, open and manipulate simulations containing ChemSep columns and other CAPE-OPEN Unit Operations and Property Packages on any VirtualBox-supported host operating system.
The download contains a compressed ZIP file with an App Bundle for DWSIM on macOS.
macOS (Classic UI + ChemSep)
This special App Bundle allows you to run the Windows version of DWSIM (Classic UI) on macOS. Includes the full version of the Capital Cost Estimator Plugin, the Advanced EOS Library, ChemSep, Octave, Python and other CAPE-OPEN software. With this version you can create, open and manipulate simulations containing ChemSep columns and other CAPE-OPEN Unit Operations and Property Packages on macOS.
The Debian Installer Packages for Raspberry Pi 2/3 takes care of required dependencies. Includes binaries, documentation and samples. Requires Mono 5.0 or newer with the Visual Basic compiler package (mono-vbnc) and GTK# version 2.12 or newer to run.
Follow these instructions to install the most recent Mono version on Raspbian Stretch and Ubuntu MATE: http://www.mono-project.com/download/#download-lin
After installation, run DWSIM through the terminal by typing 'dwsim'.