Work

Comparative Analysis of Accident Tolerant Fuels with Spectrum Shift Regulation in VVER-S Reactor

Year: 2025

Type: conference-paper

Abstract: Accident Tolerant Fuels (ATF) have emerged as a promising solution to improve safety during reactor accidents by enhancing fuel performance in light water reactors (LWRs). This paper investigates the performance of different ATF concepts, including Chromium-coated Zircaloy (CrZry), advanced steel (FeCrAl), and Silicon Carbide (SiC) as cladding materials, paired with Uranium Dioxide (UO2), Uranium Silicide (U3Si2), and Uranium Nitride (UN) fuels, under spectrum shift regulation conditions in a VVER-S reactor. Using the GETERA program, a series of calculations were conducted to compare multiplying factors and isotopic concentrations under spectrum-shifted conditions. The results demonstrate significant differences in fuel cycle characteristics and isotopic behavior, with SiC emerging as the optimal cladding material for maximizing neutron economy and minimizing parasitic absorption.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2984/1/012010

Authors: Dilmurod Tuymurodov, Abror Tuymuradov, Satimboy Palvanov, Sindorjon Ashurov, Vokhid Kudratov

Institutions: Lithuanian Energy Institute, National University of Uzbekistan

Language: English

Topic: Nuclear Materials and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: diamond

OpenAlex ID: W4409317449

FWCI: 10.07

Cites: 6

Cited by: 2

Related to: 10