The MINICHEM (MINImisation of CHEMical potentials) is a code to calculate the chemical equilibrium of sodium and mox fuel system using thermochemical equilibrium approach. The code calculates the equilibrium species in the reactor vessel after a core melt. The released inventory in the cover gas is expressed in terms of release fraction. The code can calculate the equilibrium species at both constant (T, P) and (T, V) cases. Apart from source term calculations, the code can be used for the general purpose chemical equilibrium calculations. The project was started under the Reactor Shielding and Data Division (RSDD) at IGCAR and an IAEA CRP on the subject.

Complete documentation on the usage of MINICHEM is hosted on Read the Docs.

If you use MINICHEM in your research, please consider giving proper attribution by citing the following publication:

P.R. Patel, A. John Arul, In-vessel source term calculation using chemical equilibrium approach for a medium sized sodium cooled fast reactor, Nuclear Engineering and Design. 362 (2020) 110583. https://doi.org/10.1016/j.nucengdes.2020.110583.

If you run into problems during running MINICHEM or If you are interested in the project or would like to help and contribute towards future builds of Mechanistic code for FBRs, please drop a mail to the authors (Email: [email protected], [email protected]).

MINICHEM is distributed under GNU General Public License v3.0