Development of approaches to simulate fuel rod destruction with different fuel type

Eduard Usov, Nikolay Pribaturin, Vladimir Chukhno, Ilya Klimonov, Anton Butov, Ivan Kudashov, Albert Gafiyatullin, Pavel Lobanov

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

Abstract

Due to the revival of interest to the development of fast reactors cooled by liquid metals, the problem of carrying out theoretical research in support of their safety is actual. A detailed calculation of all stages of the accident from the beginning to the end requires knowledge of the laws for modeling physical processes occurring in the reactor in an emergency. The most serious are accidents with the destruction of the core. Simulation of severe accident in nuclear reactor is the key element in safety analysis of nuclear power plants. Destruction of fuel rods is one of the most important processes that should be calculated during core degradation. For different type of fuels the mechanism of the degradation are different too. For example, oxide and metallic fuels usually melt congruently at high temperature, but nitride fuel dissociates. The main objective of the proposed research is developing of models and numerical algorithms for calculation fuel rods destruction with oxide, metallic and nitride fuels. The models of the destruction processes and some calculation results are presented in the paper. The processes are investigated for the first phase of severe accidents covering the period from the onset of fuel-rod melting to the melt escape from the core center.

Original languageEnglish
Title of host publicationNuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors
PublisherAmerican Society of Mechanical Engineers(ASME)
ISBN (Print)9784888982566
DOIs
Publication statusPublished - 2020
Event2020 International Conference on Nuclear Engineering, ICONE 2020, collocated with the ASME 2020 Power Conference - Virtual, Online
Duration: 4 Apr 20205 Apr 2020

Publication series

NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
Volume2

Conference

Conference2020 International Conference on Nuclear Engineering, ICONE 2020, collocated with the ASME 2020 Power Conference
CityVirtual, Online
Period04.04.202005.04.2020

Keywords

  • Cladding
  • Films
  • Fuel pin degradation
  • Melt
  • Metallic fuel
  • Nitride fuel
  • Oxide fuel

Fingerprint Dive into the research topics of 'Development of approaches to simulate fuel rod destruction with different fuel type'. Together they form a unique fingerprint.

Cite this