Used for phase envelope development and reservoir management optimization.
For engineering consultancies that live in Excel, this alone pays for the license.
DWSIM Pro includes advanced sensitivity analysis tools, enabling engineers to study how variations in input parameters (e.g., feed rates, temperatures) affect the overall process performance and economic viability. dwsim pro
: Creating digital twins and simulators for training purposes [7].
show that it is a highly reliable alternative, particularly for modern sustainability projects like biorefinery and biofuel modeling Used for phase envelope development and reservoir management
Serving as a cost-effective sandbox for piloting new chemical paths without risking capital on multi-million dollar software licenses. The Economic Advantage of DWSIM Pro
Chemical process simulation is the cornerstone of modern chemical engineering, allowing engineers to design, optimize, and troubleshoot processes without the risk and expense of physical experimentation. For years, the industry was dominated by high-cost proprietary software. However, the rise of open-source tools has democratized access to these powerful capabilities. : Creating digital twins and simulators for training
The software provides a deep matrix of standard and advanced unit operations:
DWSIM Pro (launched in 2021) is the of the open‑source DWSIM. It is presented and owned by CGC Capital‑Gain Consultants GmbH, a German‑based company that builds DWSIM Pro with permission from the open‑source contributors. The commercial version is hosted on Simulate365.com , a cloud platform that runs SaaS software applications and services. In addition to everything the free version includes, DWSIM Pro adds over 50 extra features, special unit operations, advanced thermodynamic packages, a bidirectional solver, AI‑assisted flowsheet generation, and a unified file management dashboard. In industry terms, DWSIM is the free core, while DWSIM Pro is a professional cloud‑based extension with private support.
However, the 2025 bio‑refinery study suggests that for many practical chemical engineering problems, DWSIM Pro delivers results within 2–10% of industry leaders—good enough for conceptual design, feasibility studies, research, and education. Academic users and small consultancies that cannot afford Aspen Plus (often US$40,000+ per year) find DWSIM Pro particularly compelling. FitGap's affordability evaluation ranks DWSIM in the simulation and CAE category, confirming its position as the most cost‑effective choice for solo researchers and small teams.
: Tools to evaluate capital (CAPEX) and operating costs (OPEX), calculate raw material consumption, and conduct sensitivity analysis. Reporting & Documentation