ThermoPack Version 2.1.0 was released on December 7th 2022, and was the first release to be made available on the Python Packaging Index. It is the most recent stable release of ThermoPack, for more recent features and potential bugfixes, ThermoPack must be installed from source.

Thermopack is a thermodynamics library for multi-component and multi-phase thermodynamics developed at SINTEF Energy Research and NTNU Department of Chemistry. Through decades of research, we have developed a software that performs thermodynamic calculations. A large selection of equations of state have been implemented in this software. Most of these equations of state have been developed by other research groups around the world, but some of them have been developed by us. Thermopack has been a much-appreciated in-house powerhouse.

Thermopack is available for everybody, free of charge under the MIT/Apache 2.0 open-source licenses. Thermopack is written in FORTRAN to handle heavy numerical computations associated with process and computational fluid dynamics (CFD) simulations. The thermodynamic framework is easily interfaced from C/C++ and also contains a flexible Python wrapper to make scripting easy.