Np-Am混合物在VVER-1000反应堆238Pu生产中的应用及中央Np-Am燃料组件冷却剂丢失事故引起的反应性影响

IF 0.5 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Journal of Nuclear Engineering and Radiation Science Pub Date : 2023-06-01 DOI:10.3390/jne4020029

A. Shmelev, N. Geraskin, V. Apse, V. Glebov, E. Kulikov, A. Krasnoborodko

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引用次数: 0

摘要

本文介绍了轻水VVER-1000反应堆大规模生产238Pu的可能性和堆芯中心燃料组件失冷剂事故引起的反应性影响的数值评估结果。这种含有微量锕系元素的np - am成分的燃料组件被放置在反应堆堆芯的中心，用于大量生产238Pu。找到了大规模生产钚的最佳条件，其同位素组成适合应用于放射性同位素热电发生器。评估了中央Np-Am燃料组件冷却剂损失事故的反应性影响，并利用微扰理论确定了一些中子过程(泄漏、吸收和缓和)对有效中子倍增因子总变化的贡献。

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Application of Np–Am Mixture in Production of 238Pu in a VVER-1000 Reactor and the Reactivity Effect Caused by Loss-of-Coolant Accident in the Central Np–Am Fuel Assembly

This paper presents the results obtained from numerical evaluations for the possibility of large-scale 238Pu production in the light-water VVER-1000 reactor and the reactivity effect caused by the loss-of-coolant accident in the central fuel assembly of the reactor core. This fuel assembly containing the Np–Am-component of minor actinides was placed in the center of the reactor core and intended for intense production of 238Pu. Optimal conditions were found for large-scale production of plutonium with an isotope composition suitable for application in radioisotope thermoelectric generators. The reactivity effect from the loss-of-coolant accident in the central Np–Am fuel assembly was evaluated, and the perturbation theory was used to determine the contributions of some neutron processes (leakage, absorption, and moderation) to the total variation of the effective neutron multiplication factor.

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来源期刊

Journal of Nuclear Engineering and Radiation Science NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： The Journal of Nuclear Engineering and Radiation Science is ASME’s latest title within the energy sector. The publication is for specialists in the nuclear/power engineering areas of industry, academia, and government.