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EXPERIENCE AND APPLICABILITY OF HIGH DENSE METAL URANIUM IN ADVANCED BN-REACTORS

Jun 27, 2017, 2:50 PM
20m
Room 2 (Yekaterinburg)

Room 2

Yekaterinburg

ORAL Track 5. Fast Reactor Materials (Fuels and Structures) and Technology 5.10 Fuel Modeling and Simulation

Speaker

Prof. Iulian Golovchenko (Russian Federation)

Description

To guarantee an inherent safety in advanced BN-reactors the breeding ratio of its active core (BRC) must have the meaning of BRC ≥ 1,0. It could be reached in heterogeneous oxide-metal cores of various types in use of metal uranium as the fertile components in the proportion of MOX:U ≈ 2:1. We obtained the experience of manufacturing the fertile columns of various types from the metal uranium, the experience of manufacturing and irradiation in fast reactors BOR-60 and BN-350 of full-size elements (FE) and fuel assemblies (FA) that have such columns (4010 elements in part of 108 fuel assemblies). Besides the obtaining of the inherent safety in advanced BN-reactors with the heterogeneous oxide-metal cores of various types (by FA-heterogenization of the core, IFAH – by intra FA-heterogenization, IFEH – by intra fuel elements heterogenization) we could achieve considerable additional economic and ecological preferences. Among them there are the increase of the admissible average burnup of MOX-fuel by ≈20%, the decrease of the mass of manufactured and consumable Pu-containing MOX-fuel by ≈30%, the decrease of consumable Pu-containing FE or Pu-containing FA by ≈30%, etc.

Country/Int. Organization

Russian Federation, Joint Stock Company
“State Scientific Center – Research Institute of Atomic Reactors"

Primary author

Prof. Iulian Golovchenko (Russian Federation)

Presentation materials