Multiphysics analysis of thorium-based fuel performance with a two-layer SiC cladding under normal operating and transient conditions in a light water reactor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number108543
Journal / PublicationAnnals of Nuclear Energy
Volume163
Online published15 Jul 2021
Publication statusPublished - 1 Dec 2021

Abstract

Due to the excellent properties of high temperature strength, creep resistance, lower thermal expansion and better irradiation resistance, the silicon carbide is considered as a substitute for the Zircalloy cladding. In this paper, the thermal and mechanical properties of SiC cladding are reviewed firstly. Then the thermophysical properties and mechanical behavior model of the thorium-based fuel and SiC cladding are implemented in FRAPCON-4.0 and FRAPTRAN-1.5 codes. Lastly, the fuel performance of five different types of fuel cladding combinations including two kinds of thorium-based fuel, traditional UO2 fuel and two kinds of cladding (Zircalloy and two-layer SiC) are analyzed and compared both under the PWR normal operating condition and transient conditions. The results show that under normal or transient conditions, the thorium-based fuel with two-layer SiC cladding is found to have higher safety margin and superior fuel performance than that of the fuels combined with Zircalloy cladding.

Research Area(s)

  • Accident conditions, Fuel performance, Normal operating conditions, Thorium-based fuel, Two-layer SiC cladding

Citation Format(s)

Multiphysics analysis of thorium-based fuel performance with a two-layer SiC cladding under normal operating and transient conditions in a light water reactor. / Qiu, Chenjie; Liu, Rong; Cai, Jiejin; Zhou, Wenzhong.

In: Annals of Nuclear Energy, Vol. 163, 108543, 01.12.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review