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Thermophysical properties and thermodynamic equation of state of lithium-lead for nuclear fusion reactor safety calculations

V. Cossu, C. Risi, F. Galleni, M. Eboli, A. Del Nevo, N. Forgione, K. Morita2025年10月Nuclear FusionIF 3出版社

One of the most promising designs for the breeding blanket is the water cooled lithium lead, extensive efforts have been carried out over the years to study the interaction between water and lithium-lead in case of a loss of coolant accident, both experimentally and numerically. This possible accident scenario requires a numerical tool able to simulate the complex phenomena involved. The SIMMER code is currently the best candidate since it is used to perform safety analysis for liquid metal nuclear fission reactors. Even though, different milestones have been reached for the adaptation of SIMMER code for the Lithium-Lead/water interaction, a comprehensive work on the lithium-lead equation of state (EOS) and thermo-physical properties has never been carried out. The investigation of the EOS and thermo-physical properties of SIMMER is conducted and the most updated data on lithium-lead is collected. Using the experimental data, the new SIMMER analytical equations for lithium-lead are obtained. The implementation of EOS and thermo-physical properties of lithium-lead in SIMMER enables the real fluid behavior of the liquid metal and they will represent more realistically the conditions occurring during an interaction between lithium-lead and water during nuclear fusion reactor accidents.

日本語訳

水冷却リチウム鉛は増殖ブランケットの最も有望な設計の一つであり、冷却材喪失事故の場合の水とリチウム鉛の間の相互作用を研究するための広範な努力が、長年にわたり実験的および数値的に行われてきた。この可能性のある事故シナリオは、関与する複雑な現象をシミュレートできる数値ツールを必要とする。SIMMERコードは、液体金属核分裂炉の安全解析を実行するために使用されているため、現在最良の候補である。リチウム鉛/水相互作用のためのSIMMERコードの適応に関していくつかのマイルストーンに到達しているが、リチウム鉛の状態方程式(EOS)および熱物性に関する包括的な研究はこれまで行われていない。SIMMERのEOSおよび熱物性の調査が実施され、リチウム鉛に関する最新のデータが収集された。実験データを使用して、リチウム鉛のための新しいSIMMER解析方程式が得られた。SIMMERにおけるリチウム鉛のEOSおよび熱物性の実装により、液体金属の実際の流体挙動が可能になり、核融合炉事故中のリチウム鉛と水の間の相互作用中に発生する条件をより現実的に表現するだろう。

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Lithium

AIによる論文要約

核融合炉安全計算のためのリチウム-鉛の熱物性と熱力学状態方程式
JAこの論文は、核融合炉の安全性評価に関心のある研究者や技術者に役立つでしょう。特に、SIMMER コードを使用して事故シナリオをモデル化している人にとって有益です。#核融合炉安全性 #リチウム鉛 #状態方程式 #熱物性 #SIMMER
LLM向け: {'Title': '核融合炉安全計算のためのリチウム-鉛の熱物性と熱力学状態方程式', 'Author(s)': '不明', 'Research Object…

この論文は、リチウム-鉛の状態方程式と熱物性を詳細に調査し、SIMMER コードにおける新しい解析式を導出しています。これにより、リチウム-鉛と水の相互作用を含む核融合炉事故シナリオをより正確にシミュレーションできるようになります。

Thermophysical properties and thermodynamic equation of state of lithium-lead for nuclear fusion reactor safety calculations
ENThis paper should be read by fusion researchers, nuclear engineers, and anyone involved in the design and safety analysis of fusion reactor systems, as it provides crucial data and modeling improvements for understanding the behavior of lithium-lead under accident conditions.#FusionReactorSafety #LithiumLead #ThermophysicalProperties #EquationOfState #NuclearEngineering
LLM向け: {'Title': 'Thermophysical properties and thermodynamic equation of state of lith…

This paper investigates the thermophysical properties and equation of state of lithium-lead, a promising material for fusion reactor breeding blankets. It aims to improve the SIMMER code's ability to simulate the interaction between lithium-lead and water during potential accidents, enabling more realistic modeling of fusion reactor safety.

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