【24h】

Physics Characteristics of U-ZrH1.6 Fueled PWR Cores

机译:U-ZrH1.6燃料压水堆芯的物理特性

获取原文
获取原文并翻译 | 示例

摘要

This paper summarizes part of the neutronic studies performed forrnNERI project 02-189 aimed at assessing the feasibility of improving thernperformance of light water reactors by using solid hydride fuel instead ofrnoxide fuel. Infinite lattice neutronic parametric study indicates that itrnshould be possible to design PWR cores using U-ZrH1.6 fuel to haverncomparable discharge burnup as attainable with UO2 fuel of samernenrichment. The optimal hydride fuel P/D ratio is significantly smallerrnthan that of oxide fuel but has a softer spectrum. U-ZrH1.6 fuelled coresrncan be designed to have negative coolant and fuel temperature coefficientrnof reactivity. U-ZrH1.6 fuel offers a couple of unique temperaturernreactivity feedback mechanisms – a prompt feedback due to spectrumrnhardening and a delayed feedback due to hydrogen diffusion. Handling ofrnhydride fuel will require special attention to criticality safety.
机译:本文概述了针对rnNERI项目02-189进行的中子学研究的一部分,该研究旨在评估通过使用固体氢化物燃料代替氧化氢燃料来改善轻水反应堆的性能的可行性。无限晶格中子参量研究表明,应该有可能使用U-ZrH1.6燃料设计压水堆堆芯,以具有与相同富集的UO2燃料可比的放电燃尽。最佳氢化物燃料的P / D比明显小于氧化物燃料,但光谱较软。可将U-ZrH1.6燃料堆芯设计为具有负的冷却剂和燃料温度系数-反应性。 U-ZrH1.6燃料提供了两种独特的温度反应性反馈机制–由于光谱硬化而产生的快速反馈,以及由于氢扩散而产生的延迟反馈。氢化物燃料的处理需要特别注意临界安全性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号