Environmental Impact on the Structural Integrity of Nuclear Components

环境对核部件结构完整性的影响

• 批准号: 101435
• 金额: $ 138.36万
• 依托单位: EDF ENERGY NUCLEAR GENERATION LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=101435
• 关键词: Environmental; Impact; Structural; Integrity; Nuclear

The fleet of Advanced Gas-cooled Reactor (AGR) nuclear power plants generate ~15% of the UK’s electricity power. The planned AGR closures between 2016 and 2024 are predicted to contribute to a shortage in UK electricity generation capacity. Therefore establishing safe lifetime extension of the AGRs is important for the UK. The degradation of high temperature stainless steel components through creep-fatigue processes is life limiting to the AGRs. New evidence suggests that there may be a synergistic interaction between the gas in which these components operate and the way they may fail, which is not fully understood. Lifetime extension may be impossible without accounting for this interaction. This project aims to understand this interaction between the environment and component degradation, enabling an assessment methodology to be developed which can establish the safety and extended lifetime of stainless steel components operating in the AGR reactors.

先进气冷堆（AGR）核电站的舰队产生了英国电力的15%。预计2016年至2024年计划关闭的AGR将导致英国发电能力短缺。因此，确定AGR的安全寿命延长对英国来说很重要。高温不锈钢部件通过蠕变疲劳过程的退化是AGR的寿命限制。新的证据表明，这些组件运行的气体与它们可能失效的方式之间可能存在协同作用，这一点尚未完全了解。如果不考虑这种相互作用，寿命延长可能是不可能的。该项目旨在了解环境与组件退化之间的相互作用，从而开发出一种评估方法，可以确定AGR反应堆中运行的不锈钢组件的安全性和延长的使用寿命。