气冷快堆燃料组件设计及中子学特性分析
TL329+.2%TL43+3%TL424; 气冷快堆兼具高温气冷堆的经济性和快堆的可持续性等优点,在四代堆型中具有独特的技术优势.为了适应气冷快堆高温、高中子通量的堆芯环境,本文基于耐事故燃料模型,提出了一种块状气冷快堆燃料组件设计方案,并对该组件中铀钚混合燃料中的钚含量、冷却孔道的直径及数量、栅距比、包壳及组件盒厚度等物理参数对中子学特性的影响规律开展了敏感性分析研究.分析结果表明:在研究的6个参数中,钚含量和栅距比对组件的中子学特性影响最大,冷却孔道数量主要影响组件内的功率分布,其余参数对组件中子学特性几乎无影响.最后针对块状燃料组件低冷却剂份额的特点,利用单通道模型进行组件内的温度分布...
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Published in | 核技术 Vol. 46; no. 5; pp. 87 - 94 |
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Main Authors | , , |
Format | Journal Article |
Language | Chinese |
Published |
中国核电工程有限公司 北京 100840
01.05.2023
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Subjects | |
Online Access | Get full text |
ISSN | 0253-3219 |
DOI | 10.11889/j.0253-3219.2023.hjs.46.050601 |
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Abstract | TL329+.2%TL43+3%TL424; 气冷快堆兼具高温气冷堆的经济性和快堆的可持续性等优点,在四代堆型中具有独特的技术优势.为了适应气冷快堆高温、高中子通量的堆芯环境,本文基于耐事故燃料模型,提出了一种块状气冷快堆燃料组件设计方案,并对该组件中铀钚混合燃料中的钚含量、冷却孔道的直径及数量、栅距比、包壳及组件盒厚度等物理参数对中子学特性的影响规律开展了敏感性分析研究.分析结果表明:在研究的6个参数中,钚含量和栅距比对组件的中子学特性影响最大,冷却孔道数量主要影响组件内的功率分布,其余参数对组件中子学特性几乎无影响.最后针对块状燃料组件低冷却剂份额的特点,利用单通道模型进行组件内的温度分布计算,给出了热工限值对组件参数的要求. |
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AbstractList | TL329+.2%TL43+3%TL424; 气冷快堆兼具高温气冷堆的经济性和快堆的可持续性等优点,在四代堆型中具有独特的技术优势.为了适应气冷快堆高温、高中子通量的堆芯环境,本文基于耐事故燃料模型,提出了一种块状气冷快堆燃料组件设计方案,并对该组件中铀钚混合燃料中的钚含量、冷却孔道的直径及数量、栅距比、包壳及组件盒厚度等物理参数对中子学特性的影响规律开展了敏感性分析研究.分析结果表明:在研究的6个参数中,钚含量和栅距比对组件的中子学特性影响最大,冷却孔道数量主要影响组件内的功率分布,其余参数对组件中子学特性几乎无影响.最后针对块状燃料组件低冷却剂份额的特点,利用单通道模型进行组件内的温度分布计算,给出了热工限值对组件参数的要求. |
Author | 霍小东 刘国明 周梦飞 |
AuthorAffiliation | 中国核电工程有限公司 北京 100840 |
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Author_FL | HUO Xiaodong ZHOU Mengfei LIU Guoming |
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Keywords | 单通道模型 气冷快堆 敏感性分析 块状组件 中子学特性 颗粒弥散燃料 |
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