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Advanced Alternatives of VVER-440 Fuel Assembly

[+] Author Affiliations
Juraj Tomaškovič, Vladimír Nečas

Slovak University of Technology, Bratislava, Slovakia

Petr Dařílek, Radoslav Zajac

VUJE, a.s., Trnava, Slovakia

Paper No. ICONE22-31108, pp. V001T02A027; 4 pages
  • 2014 22nd International Conference on Nuclear Engineering
  • Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues
  • Prague, Czech Republic, July 7–11, 2014
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4589-9
  • Copyright © 2014 by ASME


The main goals of fuel development for pressurized water reactor are effectiveness and economic efficiency. Both requirements can be achieved by gradual increase of discharged fuel burn-up and prolongation of fuel cycle. The mentioned effects can be reached by optimisation of fuel assembly profiling, fuel enrichment raise, and by parasitic absorption reduction. These methods were used in VVER-440 fuel assembly optimisation, described in this paper. Fuel pin configurations with enrichment limit 5 % and also enlarged one up to 5.95 % U235 were designed. Reduction of parasitic absorption was limited by carcass frame of the assembly. Basic characteristics of the best assembly proposals are presented and effects on equilibrium fuel cycle of VVER-440 reactor are characterized.

Copyright © 2014 by ASME
Topics: Fuels , Manufacturing



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