Investigations of HTGR Reactor Building Response to Break in Primary Coolant Boundary

高温气冷堆反应堆厂房对主冷却剂边界破裂响应的研究

• 批准号: EP/T003332/1
• 负责人: Simon Walker
• 金额: $ 53.44万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FT003332%2F1
• 关键词: Investigations; HTGR; Reactor; Building; Response

The United Kingdom government has stated that its intention is to maintain nuclear energy as a significant contributor to electricity production in United Kingdom. This is because it provides a relatively low cost, stable, and essentially emissions free source of electricity. It is complementary to "renewables" such as solar and wind. Renewables operate only intermittently (on windy days, or when the sun shines, and for example, in the UK a typical solar installation will actually generate electricity for only about 1/10 of the year.)Until recently 'nuclear' provided approaching 30% of the country's electricity, but these plants are now reaching the end of their lives (after typically 40 or more years), and there is a need to replace them. Naturally, 50 years on, it is appropriate to replace them with more modern designs. This project is to help design some of this next generation of nuclear power stations. Britain's existing fleet of nuclear stations is largely gas cooled, and this project is to help develop the next generation of high-temperature gas cooled reactors. The particular project is to develop both experimental facilities and computational methods to understand the behaviour of the plants under the very unlikely circumstances that part of the gas circuit of the plant were to spring a leak. One of the characteristics making these new designs "advanced" is that they are extremely tolerant of this, and they will be designed such that they are essentially immune from any adverse consequences following such a leak. This project is to help to confirm and demonstrate that fact. It is a collaborative project with United States, where essentially identical conditions apply. It will involve building a large-scale experimental facility to simulate the behaviour of a wide range of plants of this type. Measurements will be made, to determine the response of the plant to the leak. In parallel with this, computational methods will be developed to enable more detailed assessments to be made of specific actual reactor designs. These computational tools will assist with both design optimisation, and with the assessments of the plants as part of the licensing process.

英国政府表示，其意图是维持核能作为英国电力生产的重要贡献者。这是因为它提供了成本相对较低、稳定且基本上无排放的电力来源。它是对太阳能和风能等“可再生能源”的补充。可再生能源只能间歇性运行（在大风天或阳光明媚的时候，例如，在英国，典型的太阳能装置实际上只能在一年中发电约 1/10。）直到最近，“核能”提供了该国近 30% 的电力，但这些发电厂现在已达到其寿命终点（通常需要 40 年或更长时间），需要更换它们。当然，50 年后，用更现代的设计来取代它们是合适的。该项目旨在帮助设计一些下一代核电站。英国现有的核电站群主要采用气冷式，该项目旨在帮助开发下一代高温气冷式反应堆。该特定项目是开发实验设施和计算方法，以了解工厂在极不可能的情况下（工厂的部分气体回路发生泄漏）的行为。使这些新设计“先进”的特征之一是它们对此具有极高的耐受性，并且它们的设计使得它们基本上免受此类泄漏后的任何不利后果。该项目旨在帮助确认和证明这一事实。这是与美国的合作项目，美国的条件基本相同。它将涉及建造一个大型实验设施来模拟各种此类植物的行为。将进行测量以确定工厂对泄漏的响应。与此同时，将开发计算方法，以便对具体的实际反应堆设计进行更详细的评估。这些计算工具将有助于设计优化以及作为许可过程一部分的工厂评估。

项目成果

Non-intrusive semi-analytical uncertainty quantification using Bayesian quadrature with application to CFD simulations

• DOI: 10.1016/j.ijheatfluidflow.2021.108917
• 发表时间: 2022-02
• 期刊: International Journal of Heat and Fluid Flow
• 影响因子: 2.6
• 作者: Y. Duan;Miriam North Ridao;M. Eaton;M. Bluck

Mean Flow, Turbulent Structures, and SPOD Analysis of Thermal Mixing in a T-Junction with Variation of the Inlet Flow Profile

入口流动剖面变化的 T 形接头热混合的平均流动、湍流结构和 SPOD 分析

• DOI: 10.3390/en15228415
• 发表时间: 2022
• 期刊: Energies
• 影响因子: 3.2
• 作者: Lampunio L