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首页> 外文会议>Utilisation and Reliability of High Power Proton Accelerators; Nuclear Science >COMPARATIVE TRANSIENT ANALYSES OF ACCELERATOR-DRIVEN SYSTEMS WITH MIXED OXIDE AND ADVANCED FERTILE-FREE FUELS
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COMPARATIVE TRANSIENT ANALYSES OF ACCELERATOR-DRIVEN SYSTEMS WITH MIXED OXIDE AND ADVANCED FERTILE-FREE FUELS

机译：混合氧化物和高级无铁燃料的加速器驱动系统的比较瞬态分析

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摘要

Comparative safety analyses and investigations were performed for a small-scale ADS with conventional MOX fuel and an 800 MWth power class ADT with advanced fertile-free fuels, both cooled by Pb/Bi. The analyses covered perturbations of the source [e.g. unprotected transient overcurrent (UTOC) and beam interruptions] as well as perturbations on the core side, protected/unprotected transient overpower (P/UTOP) induced by reactivity additions and unprotected loss of flow (ULOF) accidents. These showed that the small-scale ADS had a very good safety performance, while for the 800 MWth ADT with ZrO_2 and MgO matrix based fuels some safety problems were identified, mainly related to the large positive void feedback and high linear power rate. Further design and safety optimisations are under consideration.
机译：对使用常规MOX燃料的小规模ADS和使用先进的无金属燃料的800 MWth功率级ADT进行了比较安全性分析和调查，两者均由Pb / Bi冷却。分析涵盖了源的扰动[例如无保护的瞬态过电流（UTOC）和光束中断]以及铁芯侧的扰动，反应性增加引起的受保护/无保护的瞬态过功率（P / UTOP）和无保护的流量损失（ULOF）事故。这些表明小型ADS具有非常好的安全性能，而对于基于ZrO_2和MgO基质燃料的800 MWth ADT，发现了一些安全问题，这主要与大的正空位反馈和高线性功率相关。正在考虑进一步的设计和安全性优化。

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