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Minor-Actinide Burning in Fast Reactors

#0272


Studies of Fast Reactor Fuel Cycle to Burn Minor-Actinide.

Tech Area / Field

  • FIR-FUC/Fuel Cycle/Fission Reactors

Status
8 Project completed

Registration date
25.10.1994

Completion date
05.12.2002

Senior Project Manager
Tocheny L V

Leading Institute
NIIAR (Atomic Reactors), Russia, Ulianovsk reg., Dimitrovgrad

Collaborators

  • European Commission / Joint Research Center / Institute for Transuranium Elements, Germany, Karlsruhe\nBritish Nuclear Fuels Ltd (BNFL), UK, Chesire, Risley Warrington\nPower Reactor and Nuclear Fuel Development Corporation (PNC), Japan, Tokyo

Project summary

The project involves a theoretical estimation of the special reactor (probably, a fast reactor) closed fuel cycle technologies for destruction of minor actinides and plutonium of different grades (weapon and energetic). This project is aimed at the solution of the problem of destruction of long-life minor actinides (Np, Am, Cm) and other radioactive waste components by their transmutation in the special reactor with oxide fuel utilization. The objects of work is:

- research and feasibility study of the special reactor fuel cycle for transmutation of long-lived minor actinides - Np, Am and Cm - using the compact pyroelectrochemical technology for production and reprocessing of oxide fuel as well as vibropacking technology for fuel pin and target production;

- theoretical validation of the transmutation technology flow-sheet for minor actinides and some fission products in the special reactor (for instance, fast reactor);

- comparison of different versions of fuel 'cycle organization taking into consideration minor actinides transmutation.

Results of this work can be used for experimental developments of the closed fuel cycle for nuclear reactors of different types operating under the conditions of burning out most hazardaous radioactive waste components of nuclear industry.

EXPECTED RESULTS

1) The flow-sheet of the compact pyroelectrochemical technology with little waste for reprocessing of irradiated oxide nuclear fuel containing minor actinides except uranium and plutonium. It is proposed that low decontamination factor of fuel would not allow use of it outside this energetic plant.

2) Technical proposal for design of fuel pin and oxide fuel assemblies with minor actinides.

3) Estimation of environmental aspects of the technology for utilization of minor actinides in the special reactor fuel cycle.

4) Primary economic estimation of the special fast reactor transmutation technology.


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