Centrally-shielded burnable absorber for LWR fuel

Mohd Syukri Yahya, Yonghee Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Burnable absorbers (BA) have evolved remarkably throughout the years to meet the demands of modern pressurized water reactors (PWR). Innovation in the BA technologies has, however, somewhat stalled, delaying the much needed advancement of a PWR core design. It is upon this motivation that a new BA concept named "centrally-shielded burnable absorber" (CSBA) fuel is proposed in this paper. The CSBA fuel rod, which is a standard UO2 fuel pellet with lumped BA cores, offers some level of neutronics flexibilities per operational specifications. With optimization, any loading pattern and core management objective can potentially be fulfilled with the new BA design. Neutronic sensitivities of the CSBA concept in light of its BA spatial self-shielding variation are discussed in the first half of the paper. Meanwhile, much of the second half of the paper is devoted to demonstrate practical viability of the CSBA concept via comparative evaluations against a commercial BA technology in representative 17×17 fuel assemblies and its application in a 3-D small modular reactor core. All simulations were completed using Monte Carlo Serpent code with ENDF/B-7.0 library.

Original languageEnglish
Title of host publication2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings
PublisherInternational Congress on Advances in Nuclear Power Plants, ICAPP
ISBN (Electronic)9784890471676
Publication statusPublished - 01 Jan 2017
Event2017 International Congress on Advances in Nuclear Power Plants: A New Paradigm in Nuclear Power Safety, ICAPP 2017 - Fukui and Kyoto, Japan
Duration: 24 Apr 201728 Apr 2017

Publication series

Name2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings

Other

Other2017 International Congress on Advances in Nuclear Power Plants: A New Paradigm in Nuclear Power Safety, ICAPP 2017
CountryJapan
CityFukui and Kyoto
Period24/04/1728/04/17

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

Cite this

Yahya, M. S., & Kim, Y. (2017). Centrally-shielded burnable absorber for LWR fuel. In 2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings (2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings). International Congress on Advances in Nuclear Power Plants, ICAPP.