Development of three-dimensional neutronics calculation system for design studies on helical reactor FFHR
Development of three-dimensional neutronics calculation system for design studies on helical reactor FFHR
复制标题
螺旋反应堆FFHR设计研究三维中子学计算系统的开发
DOI：
10.1016/j.fusengdes.2006.07.076
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发表时间：
2006
影响因子：
1.7
通讯作者：
M. Youssef
中科院分区：
文献类型：
--
作者：
Teruya Tanaka;A. Sagara;T. Muroga;M. Youssef
为螺旋堆FFHR 2的设计研究，已开始建立三维中子学计算系统。在计算系统中，螺旋结构的几何数据是根据数值方程生成的，用于中子学评估和设计修改之间的快速反馈。利用该计算系统研究了FFHR 2与Flibe+Be/JLF-1（低活化铁素体/马氏体钢）和Li/V合金包层系统的氚增殖能力。由于中子通过包层组件之间的开口泄漏，原始设计无法实现氚增殖比（TBRs）>1.0，因此对尺寸进行了修改以提高增殖能力。改性后，Flibe+Be/JLF-1和Li/V合金包层系统的TBR分别达到1.08和0.98。目前的研究结果表明，包层系统有潜力实现足够的氚增殖能力在FFHR 2通过进一步的设计优化。
Construction of a three-dimensional neutronics calculation system has been started for design studies on the helical reactor FFHR2. In the calculation system, geometry data of the helical structures are generated according to numerical equations for quick feedback between neutronics evaluation and design modification. The tritium breeding abilities of the FFHR2 with the Flibe+Be/JLF-1 (Reduced Activation Ferritic/Martensitic Steel) and the Li/V-alloy blanket systems were investigated by using the calculation system. Since the original design could not achieve the tritium breeding ratios (TBRs)>1.0 due to neutron leakage through opening between the blanket components, the dimensions have been modified to enhance the breeding ability. After the modification, the TBRs of 1.08 and 0.98 were obtained for the Flibe+Be/JLF-1 and Li/V-alloy blanket systems, respectively. The present results indicate that the blanket systems have potential to achieve adequate tritium breeding ability in the FFHR2 by further design optimization.