Improvement of a design of the molten salt fast reactor

International Journal of Advanced Nuclear Reactor Design and Technology Pub Date : 2022-06-01 DOI:10.1016/j.jandt.2022.06.001

D.H. Daher , M. Kotb , A.M. Khalaf , Moustafa S. El-Koliel , Abdelfattah Y. Soliman

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Abstract

This study provides an improved design of molten salt fast reactors to reduce the maximum magnitude velocity in the core. The results indicated that the improved design reduces the magnitude velocity with acceptable hot spot temperature where the maximum magnitude velocity is nearly equal to 4.59 m/s and the temperature of the hot spot is greater than the outlet temperature by 9°. The performed analyses are used to adjust the amount of fissile material started for k_eff = 1. Neutron flux and delayed Neutron distribution study where the position of the maximum Neutron flux is in the center and the position of the maximum thermal flux is in a fertile blanket. Simulations of unprotected loss of heat sink, unprotected loss of flow, unprotected transient overpower, and Unprotected over-cooling are performed and discussed with new geometry. Due to the negative reactive feedback, it is clear that MSFR has a high safety potential.

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熔盐快堆设计的改进

本研究提供了一种改进的熔盐快堆设计，以降低堆芯的最大震级速度。结果表明，改进后的设计在可接受的热点温度下降低了震级速度，最大震级速度接近4.59 m/s，热点温度比出口温度高9°。所进行的分析用于调整keff = 1时开始的裂变材料的数量。中子通量和延迟中子分布的研究，其中最大中子通量的位置在中心，最大热通量的位置在肥沃的毯子。模拟无保护的散热器损失、无保护的流量损失、无保护的瞬态超功率和无保护的过冷，并讨论了新的几何形状。由于负反应反馈，MSFR显然具有很高的安全潜力。

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

International Journal of Advanced Nuclear Reactor Design and Technology

CiteScore

2.50

自引率

0.00%

发文量