NUMERICAL MULTIGROUP TRANSIENT ANALYSIS OF SLAB NUCLEAR REACTOR WITH THERMAL FEEDBACK

Filip Osuský, Branislav Vrban, Peter Ballo, Štefan Čerba, Jakub Lüley, Gabriel Farkas
2016 Acta Polytechnica CTU Proceedings  
The paper describes a new numerical code for multigroup transient analyses with thermal feedback. The code is developed at Institute of Nuclear and Physical Engineering. It is necessary to carefully investigate transient states of fast neutron reactors, due to recriticality issues after accident scenarios. The code solves numerical diffusion equation for 1D problem with possible neutron source incorporation. Crank-Nicholson numerical method is used for the transient states. The investigated
more » ... he investigated cases are describing behavior of PWR fuel assembly inside of spent fuel pool and with the incorporated neutron source for better illustration of thermal feedback.
doi:10.14311/ap.2016.4.0062 fatcat:7kghon4ufvh3xi2jjq6chfx4ke