研究在典型的沸水反应堆组件 (BWR) 中使用基燃料作为先进的核燃料的潜在优势
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Nassar Alnassar1, A Abdelghafar Galahom2
1Department of Physics, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11564, Riyadh, Saudi Arabia. nalnassar@imamu.edu.sa.
基燃料为沸水反应堆 (BWR) 提供了一个可持续的替代品,减少废物和延长燃料循环. 这些先进的燃料证明了安全运行和高效消耗.
科学领域:
- 核工程 核工程是指核工程.
- 材料科学 材料科学 材料科学
- 放射化学 放射化学是指辐射化学.
背景情况:
- 沸水反应堆 (BWR) 的燃料循环面临着可持续性挑战,原因是堆积的反应堆级 (rgPu),轻微的活性化物 (MAs) 和放射性废物.
- 传统的二氧化 (UO2) 燃料有助于长期的废物管理问题和有限的燃料循环效率.
研究的目的:
- 研究以为基础的燃料循环,作为BWR的可持续替代方案.
- 分析 (Th,U) O2, (Th,233U) O2,和 (Th,rgPu) O2燃料的性能和安全性,与UO2相比.
- 评估燃料在减少废物和延长运行周期方面的潜力.
主要方法:
- 在BWR燃料组件中对基燃料成分的中子分析.
- 关键参数的评估:无限乘法因数 (k_inf),裂变库存比率 (FIR),消耗,微小的活性化物减少和裂变产品行为.
- 安全参数的评估:燃料温度系数 (FTC),空反应系数 (VRC),有效延迟中子分数 (β_eff) 和控制棒值 (CRW).
- 检查辐射功率分布的热液压和结构性能.
主要成果:
- 基燃料,特别是 (Th,233U) O2和 (Th,rgPu) O2,延长了燃料循环,消耗了超过56%的加载.
- 安全参数,包括温度反应系数,保持在可接受的范围内.
- 在辐射电力分布中没有观察到显著的功率峰值,这表明有利的热液压和结构性能.
结论:
- 基燃料是通过减少废物和提高燃料循环经济性来提高BWR可持续性的可行解决方案.
- 与传统的UO2相比, (Th,233U) O2和 (Th,rgPu) O2燃料提供了更好的运营效率和安全边际.
- 该研究支持燃料在先进的核能系统和废物管理战略中的潜力.
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