TVO's Measurement Campaign for GE14 Lead Use Assemblies: Pursuing Higher Burnup

K. Ranta-Puska, M.A. Dubecky, R.A. Rand, J.J. Serna, Arttu Knuutila

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Recent fuel developments have made burnup extensions possible in many plants without impairing the operational safety. In Finland, the maximum bundle-average burnup is currently 45 MWd/kgU. TVO has a target to increase the limit to 50-55 MWd/kgU. To reach the goal, experimental evidence from the 'new' burnup range is required. Eight GE14 Lead Use Assemblies have been designed and fabricated by GENUSA, and a surveillance campaign has been built for them including pool side examinations; cladding oxide layer and rod growth measurements, and rod gamma scans. Demanding irradiation conditions are being pursued. It is envisioned that the measurement data will serve as an additional validation for fuel performance codes both for GENUSA and for TVO. In conjunction with the GE14 campaign with TVO, GENUSA is constructing a European platform for on-site inspections. In May 2006, the second cycle of the LUAs was finalised, and cladding oxide layers were measured.
Original languageEnglish
Title of host publicationProceedings of the 2006 International Meeting on LWR Fuel Performance "Nuclear Fuel: Addressing the Future"
Subtitle of host publicationTopFuel 2006 Transactions
Place of PublicationBrussels
PublisherEuropean Nuclear Society (ENS)
Pages57-61
Publication statusPublished - 2006
MoE publication typeA4 Article in a conference publication
Event2006 International Meeting on LWR Fuel Performance "Nuclear Fuel: Addressing the Future" - Salamanca, Spain
Duration: 22 Oct 200626 Oct 2006

Conference

Conference2006 International Meeting on LWR Fuel Performance "Nuclear Fuel: Addressing the Future"
Abbreviated titleTop_Fuel 2006
Country/TerritorySpain
CitySalamanca
Period22/10/0626/10/06

Keywords

  • Nuclear fuel
  • high burnup

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