从热钠池转移挥发性裂变产物

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

Annals of Nuclear Energy Pub Date : 2024-11-16 DOI:10.1016/j.anucene.2024.111059

M. Garcia, L.E. Herranz

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引用次数: 0

摘要

本研究的重点是热钠池中最相关的挥发性裂变产物的释放。通过详尽查阅公开文献，对基于薄膜理论的模型及其与 NALA 实验项目数据的估计值进行了严格审查。由于该方法中的某些假设、所得出的与数据相匹配的传输系数以及其表述与所报告的估计值之间的一些不一致之处，我们在此提出了一种替代方法，其中包括方案中预期的其他现象。基于气相中的扩散和对流机制、热量和质量输运（HMT）之间的类比假设以及理想稀释解法来设定 Na 池界面的裂变产物浓度，我们发现该方法与实验数据非常吻合，这意味着在保持保守性的同时，定性和定量预测能力得到了大幅提升。

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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Volatile fission products transfer from hot sodium pools

This study focuses on the release of the most relevant volatile fission products from the hot sodium pools. From an exhaustive review of the open literature, a critical review of a model based on the film theory and its estimates in comparison to data from the NALA experimental program has been conducted. Due to certain assumptions embedded in the approach, the fitting-to-data transport coefficients derived and some inconsistencies found between its formulation and the reported estimates, an alternate approach including other phenomena anticipated in the scenario is here proposed. Based on diffusive and convective mechanisms in the gas phase, the assumption of the analogy between heat and mass transport (HMT) and the ideal-dilute solutions laws to set the fission products concentration at the Na pool interface, a good agreement has been found with experimental data, which mean a substantial enhancement of qualitative and quantitative predictability while maintaining a conservative nature.

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来源期刊

Annals of Nuclear Energy 工程技术-核科学技术

CiteScore

4.30

自引率

21.10%

发文量

632

审稿时长

7.3 months

期刊介绍： Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.