Reactor Physics Analysis of ATF cladding system for 24-month cycle APR-1400

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

Abstract

Longer cycle lengths for nuclear power plant operations can provide economic benefits regarding availability and capacity factors over its lifetime. This study aims to analyze ATF fuel-clad combinations for the 24-month cycle of APR-1400. Higher-density fuels like U3Si2 and UB2 are analyzed with Cr-coated Zircalloy, SiC, and SS claddings. UO2 fuel for a 24-month cycle requires LEU+ enrichment, i.e.,≥ 5%. Higher-density fuels can potentially eliminate the usage of LEU+ fuel and still provide a 24-month cycle length. Higher thermal conductivity leading to lower centerline temperature and potentially higher linear heat generation rate are additional benefits of such fuels. ATF cladding candidates such as Cr-coated Zircalloy, SiC, and SS can provide longer operations without producing hydrogen in the worst-case scenario of cooling loss in a severe accident. This work aims to study the neutron physics characteristics of different ATF systems and analyze the potential pros and cons.

Original languageBritish English
Title of host publication7th International Conference on Nuclear and Renewable Energy Resources, NURER 2024 - Conference Proceedings
EditorsHaci Mehmet Sahin, Erdem Ciftci, Sulenur Asal, Coskun Yuksel
Pages113-121
Number of pages9
ISBN (Electronic)9786058854932
StatePublished - 2024
Event7th International Conference on Nuclear and Renewable Energy Resources, NURER 2024 - Antalya, Turkey
Duration: 27 Oct 202430 Oct 2024

Publication series

Name7th International Conference on Nuclear and Renewable Energy Resources, NURER 2024 - Conference Proceedings

Conference

Conference7th International Conference on Nuclear and Renewable Energy Resources, NURER 2024
Country/TerritoryTurkey
CityAntalya
Period27/10/2430/10/24

Keywords

  • 24-month cycle
  • Accident Tolerant Fuel
  • APR-1400
  • Reactor Physics

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