Embedded self-shielding method applied to doubly heterogeneous fully ceramic micro-encapsulated fuels

Kang Seog Kim, Jianwei Hu, Cole A. Gentry

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

5 Scopus citations

Abstract

This research focuses on the development of a new fast and robust lattice physics methodology for modeling and simulation of doubly heterogeneous (DH) nuclear fuels containing tristructural isotropic (TRISO) coated fuel particles and fully ceramic microencapsulated (FCM) fuel. The specific aims of this study are to determine if existing complex methods for DH calculations can be integrated with the Embedded Self-Shielding Method (ESSM) developed at Oak Ridge National Laboratory ORNL. New ESSM methodologies for the DH resonance self-shielding calculation have been developed using the Sanchez and Pomraning's method. These methodologies have been incorporated into a transport lattice code based on method of characteristics (MOC) for spatial discretization. Benchmark problems including reference solutions have been developed to validate new DH lattice physics methodology. Benchmark results show that new DH capability for resonance self-shielding and eigenvalue calculations is working reasonably.

Original languageEnglish
Title of host publicationPhysics of Reactors 2016, PHYSOR 2016
Subtitle of host publicationUnifying Theory and Experiments in the 21st Century
PublisherAmerican Nuclear Society
Pages1483-1494
Number of pages12
ISBN (Electronic)9781510825734
StatePublished - 2016
EventPhysics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016 - Sun Valley, United States
Duration: May 1 2016May 5 2016

Publication series

NamePhysics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century
Volume3

Conference

ConferencePhysics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016
Country/TerritoryUnited States
CitySun Valley
Period05/1/1605/5/16

Keywords

  • Double heterogeneity
  • ESSM
  • FCM
  • Method of characteristics

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