: Conducting heat and material balances for new plant designs [1].
A research group studying carbon capture for cement plants used DWSIM Pro’s dynamic simulation to model solvent degradation over time. They published findings in Industrial & Engineering Chemistry Research – with full reproducibility using exported Python scripts.
Among these, has emerged as a premier, free, open-source process simulator. Yet, for professional engineers requiring robust, supported, and enterprise-ready features, a step up is often necessary. Enter DWSIM Pro .
(Note: I can also generate a sample flowsheet script or example file if you tell me which process you want modeled.) dwsim pro
| Aspect | DWSIM (open‑source) | DWSIM Pro | | :--- | :--- | :--- | | | GPL v3 | Named‑user license (commercial) | | Pricing | Free | Paid plans (see below) | | Installation | You install and update on your own machine | We install on our cloud servers | | Access | Launch desktop application | Open in a browser, log in with personal credentials | | Support | Public forum support | Private (personal) support + public forum | | Thermodynamic packages | Standard set (PR, NRTL, UNIFAC, SRK, etc.) | Adds REFPROP, Amine Package, GERG‑2008, Modified UNIFAC, Neural Network | | Unit operations | Full set of standard operations | Adds PPBDesigner, three‑phase reactive distillation, falling film evaporator, solids handling (crusher, hydrocyclone, screener, filter) | | Advanced solvers | Standard modular solver | Adds Bidirectional solver (inverse problem solving) | | Built‑in tools | Basic utilities | Adds Capital cost estimator, GHG calculator, multivariate optimization | | Reporting | Basic reporting | Adds Detailed steady‑state report, export to Excel, PDF, SVG, PNG, process mechanical datasheets | | Dashboard | No | Simulate 365 Dashboard (cloud file management, version control, preview) |
: Hosted on the Simulate 365 platform, it allows users to run simulations directly in a web browser without local installation [6, 7].
Designing batch and continuous reactor systems with intricate reaction kinetics and highly non-ideal chemical separations. : Conducting heat and material balances for new
While traditionally applied in petrochemistry, DWSIM's capabilities have expanded significantly. DWSIM Pro is increasingly used for: 1. Bioprocess Applications
While both versions share the same underlying engine created by Daniel Medeiros, they serve different user needs: DWSIM (Open-Source) Free (GPL License) [1] Paid Subscription [5] Platform Windows, Linux, macOS, Android/iOS [27, 29] Browser-based (Cloud) [6] Support Community forums & public documentation [19] Private, personal expert support [6, 7] Updates Periodic community releases [30] Regular, continuous updates [6] Target User Students, researchers, and hobbyists [2] Engineering firms and industry professionals [6] Industry Applications
Potential users should to confirm that the basic workflow meets their needs. Then, upgrade to DWSIM Pro for the advanced thermodynamics, bidirectional solving, cloud file management, private support, and—soon—generative AI features. Among these, has emerged as a premier, free,
Creating virtual replicas of physical systems for real-time monitoring and operator training. Key Advantages over Open-Source
Research shows DWSIM Pro produces TEA results (e.g., Minimum Ethanol Selling Price) comparable to Aspen Plus for bio-fuel production.
The software features an impressive library of more than 50 additional functions compared to the open-source version. These include an extensive selection of to accurately model a wide variety of chemical systems:
The free DWSIM includes full steady‑state and dynamic simulation, the complete library of thermodynamics (Peng‑Robinson, NRTL, UNIFAC, etc.), standard unit operations (distillation columns, reactors, heat exchangers, pumps, valves, compressors), Python and IronPython scripting, CAPE‑OPEN interoperability, an Excel Add‑In for thermodynamic calculations, and specialized utilities (phase envelope, PSV sizing, vessel sizing, hydrate calculations, spreadsheets). The free version runs on Windows, Linux, macOS, Android, and iOS, works offline without internet, and is widely used in education and research.