Computational Perturbation Methods for Moderator and Doppler Temperature Coefficients in the European Pressurised Reactor Core Analysis

Jinfeng Li*

*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

Moderator temperature coefficient (MTC) and fuel Doppler temperature coefficient (DTC) are both the key reactivity coefficients for the safety assessment of a nuclear fission reactor core. Conventional unidirectional perturbing computation exhibits a limited scope in understanding the full-core physics. To better assist the energy policy decision making, this work contributes two different perturbation approaches to characterise the temperature coefficients of reactivity, i.e. by perturbing the moderator (or fuel) temperature while keeping the core power, or by perturbing the power while keeping the moderator (or fuel) temperature. Multi-physics computational codes suite (WIMS-PANTHER-Serpent) is employed to simulate and benchmark the startup core behavior of a nuclear new build currently occurring in the UK. Reasonably good agreements with the nuclear reactor physics are demonstrated computationally for both perturbation methods.

Original languageEnglish
Title of host publicationProceedings - 2020 International Conference on Computing, Electronics and Communications Engineering, iCCECE 2020
EditorsMahdi H. Miraz, Peter S. Excell, Andrew Ware, Safeeullah Soomro, Maaruf Ali
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages201-204
Number of pages4
ISBN (Electronic)9781728163307
DOIs
Publication statusPublished - 17 Aug 2020
Externally publishedYes
Event3rd International Conference on Computing, Electronics and Communications Engineering, iCCECE 2020 - Virtual, Southend, United Kingdom
Duration: 17 Aug 202018 Aug 2020

Publication series

NameProceedings - 2020 International Conference on Computing, Electronics and Communications Engineering, iCCECE 2020

Conference

Conference3rd International Conference on Computing, Electronics and Communications Engineering, iCCECE 2020
Country/TerritoryUnited Kingdom
CityVirtual, Southend
Period17/08/2018/08/20

Keywords

  • Doppler coefficient
  • European Pressurised Reactor
  • computational physics
  • moderator temperature coefficient
  • nuclear reactor core modelling
  • thermal hydraulics

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