OPOS-1000：提高 VVER-1000 乏核燃料桶的装载效率

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Design Pub Date : 2024-11-22 DOI:10.1016/j.nucengdes.2024.113723

M. Lovecký, J. Závorka

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引用次数: 0

摘要

本研究深入探讨了用于储存和运输 VVER-1000 反应堆乏核燃料的两用桶的优化问题。这项研究的核心是对容器周围的辐射剂量率进行评估，新颖的 OPOS-1000 计算工具为评估提供了便利，该工具采用了辅助通量技术以提高精确度。通过该工具，可以将较热的燃料组件战略性地放置在堆芯处，周围则放置较冷的燃料组件，从而通过精心设计的分区策略有效地将辐射照射降至最低。通过 OPOS-1000 进行的详细分析，可以深入了解燃料组件的最佳配置，从而降低辐射水平，在提高乏燃料桶装载效率方面取得了重大进展。这项研究成果有可能简化装载过程，并影响现有燃料桶新燃料类型的认证，标志着乏核燃料管理向前迈出了关键的一步。

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OPOS-1000: Advancing the efficiency of VVER-1000 spent nuclear fuel cask loading

This study delves into the optimization of dual-purpose casks utilized for storing and transporting spent nuclear fuel from VVER-1000 reactors. Central to this investigation is the assessment of radiation dose rates surrounding the casks, facilitated by the novel OPOS-1000 calculation tool, which incorporates adjoint flux techniques for enhanced precision. This tool enables the strategic placement of hotter fuel assemblies at the core, surrounded by cooler ones, effectively minimizing radiation exposure through a carefully designed zoning strategy. Detailed analyses conducted with OPOS-1000 offer insights into the optimal configuration of fuel assemblies to reduce radiation levels, presenting a significant advancement in spent fuel cask loading efficiency. This research’s findings have the potential to streamline the loading process and influence the certification of new fuel types for existing casks, marking a pivotal step forward in spent nuclear fuel management.

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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.