Multi-Beam Accelerator-Driven-Systems of Part I: Optimization on Thermal-Hydraulic design of target assembly

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.2024.111052

Xiaobo Li , Xunchao Zhang , Yuanshuai Qin , Yuan He

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Abstract

Integrated target module with a solid beam window, and cooled by reactor primary coolant is a good contender for Accelerator Driven System (ADS) and the cooling of the beam window is a key technique in it. The numerical analysis of two beam profiles (circular/double-circular scan) for the target assembly was performed by computational fluid dynamics (CFD) method, and a combing method was used to optimize the thermal–hydraulic design. The calculation results indicated that a nozzle was required to lower the maximum external surface temperature of the beam window to below 400℃. This can be achieved by reducing the heat deposited densities or increasing the velocity in the main heat deposited zone without enhancing the heat convection at the window surface, this will effectively reduce the temperature, but without increasing the temperature difference in the beam window. The optimization results indicate that the maximum temperature of the beam window is 393.75℃ and 384.94℃ for the circular scan and the double-circular scan, respectively. Additionally, the maximum temperature difference is 23.0℃ and 17.1℃ for the circular scan and the double-circular scan, respectively.

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多束加速器驱动系统的第一部分：靶组件的热液压设计优化

由反应堆一级冷却剂冷却的带有固体光束窗的集成靶组件是加速器驱动系统（ADS）的有力竞争者，而光束窗的冷却是其中的一项关键技术。利用计算流体动力学（CFD）方法对目标组件的两种梁剖面（圆形扫描/双圆形扫描）进行了数值分析，并采用梳理法对热液设计进行了优化。计算结果表明，需要一个喷嘴来降低束窗的最高外表面温度，使其低于 400℃。这可以通过降低主要热沉积区的热沉积密度或提高速度来实现，而不需要加强窗口表面的热对流，这将有效降低温度，但不会增加梁窗口内的温差。优化结果表明，圆扫描和双圆扫描的光束窗口最大温度分别为 393.75℃和 384.94℃。此外，圆扫描和双圆扫描的最大温差分别为 23.0℃和 17.1℃。

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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.