International Collaboration to Advance the Technical Readiness of High Uranium Density Fuels and Composites for Small Modular Reactors

国际合作推进小型模块化反应堆高铀密度燃料和复合材料的技术准备

基本信息

批准号：
EP/X011526/1
负责人：
Joel Turner
金额：
$ 64.87万
依托单位：
University of Manchester
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FX011526%2F1
关键词：
International Collaboration Advance Technical Readiness

项目摘要

This project seeks to understand the importance of a range of factors on how specific High Density (nuclear) Fuels (HDFs) behave under accident conditions. At present both UN and UB2 are promising future fuel materials to replace UO2, enabling more robust cladding solutions to be implemented by improving fuel cycle economics. Their deployment is challenging due to an observed rapid reaction with high temperature steam, an environment likely to be encountered during any postulated cladding failure in a light water reactor (such as a GW-scale commercial plant, or Small Modular Reactor). At present this reaction is poorly understood, and limited by confounding results from international institutions. The proposed work seeks to address this by adopting a round-robin approach, with a range of international collaborators exchanging both samples and data, in a bit to develop a mechanistic understanding of UN hydrolysis behaviour. Furthermore, composite UN-UB2 fuel will be manufactured which has been seen to drive improvements with UN onset temperature, but also remains understood. By developing a deeper mechanistic understanding of UN behaviour and the importance of typical light element contaminants, we will seek to explore the effect of UB2 on UN fuels, and hence develop more resistant future fuel forms.

该项目旨在了解一系列因素对特定高密度（核）燃料（HDF）在事故条件下的行为的重要性。目前，联合国和UB2都有希望未来的燃料材料替代UO2，从而通过改善燃油周期经济学来实现更强大的覆层解决方案。由于观察到的高温蒸汽的快速反应，它们的部署是具有挑战性的，这种环境可能在轻水反应堆（例如GW规模的商业植物或小型模块化反应器）中发生的任何假定的覆层失败遇到。目前，这种反应的理解很少，并且受到国际机构的混淆结果的限制。拟议的工作旨在通过采用循环蛋白方法来解决这一问题，其中一系列国际合作者交换了样本和数据，以发展对联合国水解行为的机械理解。此外，将会生产复合UN-UB2燃料，该燃料已被认为可以随着UNSET温度推动改进，但也仍然被了解。通过对联合国行为的更深入的理解和典型的光元污染物的重要性，我们将寻求探索UB2对联合国燃料的影响，从而发展出更具抵抗力的未来燃料形式。