Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Methods for localization of failed fuel assemblies in MBIR reactor

5/11/2013 2013 - #03 Global safety, reliability and diagnostics of nuclear power installations

Dvornikov P.A. Kovtun S.N. Lukyanov D.A. Shutov S.S. Zhilkin A.S.

DOI: https://doi.org/10.26583/npe.2013.3.03

UDC: 621.039.564.5

The paper describes the designed fuel element monitoring system for MBIR fast research reactor. The method for localization of failed fuel assemblies on the power operating reactor is proposed. As a result, the time of failed fuel assemblies search on shutdown reactor can be reduced. The method is based on monitoring of delayed neutrons emitted by fission products in coolant, and modeling of the loop distribution of liquid metal coolant.