Q: Are there open-source alternatives to Aspen Hysys 7.3? A: Yes, there are open-source process modeling and simulation software, such as OpenFOAM or python-based libraries like scipy and pandas.
If you cannot gain access to Aspen HYSYS, several open-source and free simulation tools offer similar capabilities for steady-state modeling: Aspen Hysys 7.3 Torrent