This paper considers the use of unconventional fuel in nuclear power reactors, using example a VVER-type unit, order to find out possibility saving natural fissile uranium nuclei. Saving is one important tasks, solution which will give time for development two-component industry that have no problems with resources. However, at present, reserves cheap can provide existing level global energy on...

The objective of this paper is to analyze the ability a VVER-1000 core and its control system cope with hypothetical main steam line break (MSLB) accident in case multiple equipment failures. study involves use advanced 3D calculation models benchmarked validated for reactivity accidents preceding studies. A MSLB boundary condition problem solved on coarse (nodal) mesh coupled COBAYA/CTF neutro...

A new OECD/NEA benchmark entitled “Reactivity compensation with diluted boron by stepwise insertion of control rod cluster” is starting. This benchmark, based on high quality measurements performed at the NPP Rostov Unit 2, aims to validate and assess fidelity multi-physics simulation code capabilities. The Benchmark divided in two phases: assembly wise pin-by-pin resolution steady-state transi...