Consideration of reactivity initiated accidents for TRU recycling in LWRs

Eugene Shwageraus, Pavel Hejzlar, Mujid S. Kazimi

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

Abstract

Response of a PWR core loaded with Combined Non-Fertile and UO2 (CONFU) fuel assemblies to control rod ejection accident was evaluated. A number of core arrangements and TRU fuel compositions were considered and the results were compared with the performance of a reference all-UO2 core. The comparison was based on the results of a simple point kinetics model with thermal reactivity feedbacks and temperature dependant materials properties. The reactivity coefficients and core average kinetics parameters were obtained from the full core 3D neutronic simulations. The results show that application of the CONFU assembly concept causes only minor deviation of fuel performance characteristics in reactivity initiated accidents. This is a consequence of relatively small loadings of TRU in the CONFU assembly and therefore dominating role of conventional UO2 fuel in the neutronic performance of the core.

Original languageEnglish
Title of host publicationProceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04
Pages1889-1898
Number of pages10
StatePublished - 1 Dec 2004
EventProceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04 - Pittsburgh, PA, United States
Duration: 13 Jun 200417 Jun 2004

Publication series

NameProceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04

Conference

ConferenceProceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04
Country/TerritoryUnited States
CityPittsburgh, PA
Period13/06/0417/06/04

ASJC Scopus subject areas

  • General Engineering

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