混合能谱超临界水堆快谱区组件增殖问题研究

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基金项目:

国家自然科学基金资助项目(91126018)

Study on Breeding of Fast Zone Assembly in SCWR-M

1. School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, 421001, China;
2. The Third Xiangya Hospital of Central South University, Changsha, 410013, China

摘要: 混合能谱超临界水冷堆(SCWR-M)快谱区的中子能谱介于热堆与快堆之间。基于SCWR-M快谱区中子能谱特点,提出一种把钍基和铀基混合作为增殖材料的新增殖方案;然后通过增加(快谱区)燃料棒的分层来增加裂变层中子的泄露,从而达到提高转换比的目的;最后通过增加燃料棒增殖层的厚度,相应的降低其裂变层的厚度,从而使SCWR-M快谱区组件的增殖比达到1.06569。
- 中子能谱 /
- 钍基 /
- 铀基 /
- 增殖比
Abstract: In this paper,a new breeding design of the fast zone in Supercritcial water-cooled Mixed-spectrum Reactor（SCWR-M） is proposed on the basis of the neutron energy spectrum characteristics,that it is harder than the thermal reactor’s and softer than the fast breeding reactor’s.Then,to increase the number of neutron leakage in the fission layers of fuel rods,the layers of fuel rod are increased and the conversion ratio of the fast spectrum assembly in SCWR-M is improved.Finally,the breeding ratio of the fast spectrum assembly in SCWR-M achieves 1.06569 by increasing the fuel rod proliferation layer thickness,correspondingly to reduce its fission layer thickness.
- Neutron energy spectrum /
- Thorium-based /
- Uranium-based /
- Breeding ratio