Investigation on Neutronic Parameters of the KLT-40S Reactor Core with U3Si2-FeCrAl using SCALE Code

Mahfudz, Alif Al and Agung, Alexander and Harto, Andang Widi (2023) Investigation on Neutronic Parameters of the KLT-40S Reactor Core with U3Si2-FeCrAl using SCALE Code. Journal of Engineering and Technological Sciences, 55 (1). pp. 22-30. ISSN 23385502

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Abstract

From a safety point of view, the fuel-cladding of the current design of the KLT-40S reactor still carries a potential risk in the event of a loss-of-coolant accident (LOCA) allowing the formation of hydrogen gas. The concept of accident tolerant fuels (ATF) offers a variety of new safer fuel-cladding materials, one of which is U3Si2-FeCrAl, a potential fuel-cladding combination according to various research sources. In this research, a study of neutronic parameters (1) cycle length, (2) reactivity feedback coefficient, and (3) reactor proliferation resistance was performed with ATF material U3Si2-FeCrAl as fuel-cladding in the KLT-40S reactor core. Modeling and simulation of the ATF-fueled KLT-40S reactor core were performed using KENO-VI and TRITON modules from SCALE code. The results showed that replacement of the fuel-cladding material with the ATF material in the KLT-40S reactor resulted in a shorter cycle length, and the enrichment required to reproduce the original cycle length was above the safeguard limit. The fuel temperature, moderator temperature, and void reactivity coefficient were negative, although not as negative as the original ones. The spent fuel produced at the end of the cycle had good proliferation resistance, although not as good as the original one.

Item Type: Article
Uncontrolled Keywords: FeCrAl,KLT-40S,SCALE,U3Si2,accident tolerant fuel,cycle length,proliferation,reactivity coefficient
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Nuclear and Physics Engineering Department
Depositing User: Rita Yulianti Yulianti
Date Deposited: 03 Apr 2024 06:21
Last Modified: 03 Apr 2024 06:21
URI: https://ir.lib.ugm.ac.id/id/eprint/374

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