Linear stability analysis of a HALEU-Fueled space nuclear reactor considering fuel composition and Xenon reactivity feedback effects

IF 2.1 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Design Pub Date : 2025-10-01 DOI:10.1016/j.nucengdes.2025.114503

A.H. Raouf, G.R. Ansarifar, M. Rafiei

引用次数: 0

Abstract

A space nuclear reactor is an attractive choice for space applications such as planetary settlements and space exploration. For safe and reliable operation, stability analysis is inevitable. This paper, for the first time, presents the stability analysis of a space nuclear reactor considering various fuel compositions and different stability methods. To this end, the dynamics of a space nuclear reactor core designed with High-Assay Low-Enriched Uranium (HALEU) fuel are modeled using neutronic and reactivity feedback models. The stability analysis is carried out using linear stability methods. This comprehensive analysis provides crucial insights for the design and operation of space nuclear reactors, enhancing their safety and reliability for future space missions.

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考虑燃料成分和氙反应性反馈效应的高卤铀燃料空间核反应堆线性稳定性分析

空间核反应堆对于行星定居和空间探索等空间应用是一个有吸引力的选择。为了安全可靠运行，稳定性分析是不可避免的。本文首次对考虑不同燃料成分和不同稳定方法的空间核反应堆进行了稳定性分析。为此，利用中子和反应性反馈模型对高含量低浓缩铀（HALEU）燃料设计的空间核反应堆堆芯的动力学进行了建模。采用线性稳定性方法进行稳定性分析。这一综合分析为空间核反应堆的设计和运行提供了至关重要的见解，提高了它们在未来空间任务中的安全性和可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Engineering and Design 工程技术-核科学技术

CiteScore

3.40

自引率

11.80%

发文量

377

审稿时长

5 months

期刊介绍： Nuclear Engineering and Design covers the wide range of disciplines involved in the engineering, design, safety and construction of nuclear fission reactors. The Editors welcome papers both on applied and innovative aspects and developments in nuclear science and technology. Fundamentals of Reactor Design include: • Thermal-Hydraulics and Core Physics • Safety Analysis, Risk Assessment (PSA) • Structural and Mechanical Engineering • Materials Science • Fuel Behavior and Design • Structural Plant Design • Engineering of Reactor Components • Experiments Aspects beyond fundamentals of Reactor Design covered: • Accident Mitigation Measures • Reactor Control Systems • Licensing Issues • Safeguard Engineering • Economy of Plants • Reprocessing / Waste Disposal • Applications of Nuclear Energy • Maintenance • Decommissioning Papers on new reactor ideas and developments (Generation IV reactors) such as inherently safe modular HTRs, High Performance LWRs/HWRs and LMFBs/GFR will be considered; Actinide Burners, Accelerator Driven Systems, Energy Amplifiers and other special designs of power and research reactors and their applications are also encouraged.