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March 3, 2026EPJ Web of ConferencesOpen Access

Neutronic and thermal-hydraulic performance analysis of a novel thorium-based fuel in dual-cooled annular assemblies for SMR applications

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Authors

HRHanan RifaiOKOuadie KabachSUSinem Uzun

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Overview

Assessment evaluates neutron behavior and thermal performance of thorium-based fuel in small modular reactors, suggesting improved safety and efficiency.

Key Points

  • Thorium-based annular fuel achieves a discharge burnup of 166.3-173.5 GWd/t, outperforming conventional solid UO2.
  • The infinite multiplication factor (k inf ) ranges from 1.002-1.003 at end of cycle, indicating stability in performance.
  • Analysis utilizes a coupled neutronic and thermal-hydraulic approach across various inner moderator radii for thorough evaluation.
  • Findings support thorium fuel's feasibility for small modular reactors, presenting improved fuel utilization with safety margins.

Cite This Study

Rifai et al. (2026) studied this question.

synapsesocial.com/papers/69a76076c6e9836116a2d3a4https://doi.org/10.1051/epjconf/202635001003
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Annular Fuel for High-Power-Density Pressurized Water Reactors: Motivation and Overview2007 · 78 citations
  2. 2Thermal-Hydraulic Design of High-Power-Density Annular Fuel in PWRs2007 · 60 citations
  3. 3Introduction to the Annular Fuel Special Issue2007 · 26 citations
  4. 4Evaluation of a Dual-Cooled Annular Fuel Heat Split and Temperature Distribution2009 · 50 citations
  5. 5Core design and neutronic study on small reactor with advanced fuel designs2021 · 13 citations