Ignitability, Quenching and Deflagration-to-Detonation-Transition of H2-air mixtures

本文的工作旨在评价不太为人所知的氢-空气混合物的可燃性，并对氢-空气混合物的爆燃转爆轰机理有更深入的了解。氢爆炸是当前英国（例如，在塞拉菲尔德）核退役、废物和产品储存活动期间的重大安全问题。氢-空气点火和可燃性研究提供了技术专长和知识，用于评估滴滴涕的倾向性和发作，并制定更好的知情安全案例，以消除保守主义，降低成本，在可能存在氢爆炸危险的核退役操作中的时间表。利兹大学宣布了一项新的研究战略“研究转型”，以实现低碳未来。拟议的核能工作符合大学的气候计划，投入1.5亿英镑，以实现到2030年温室气体净零排放的目标。在塞拉菲尔德现场的许多电厂中，拟定的氢气管理研究是一项重大的常规安全危害，并且在未来几十年的正常电厂运行期间仍将如此。利兹Combustion集团在Thermofluids实验室G50拥有一系列爆炸容器：世界知名的风扇搅拌爆炸容器，能够产生高水平的湍流;快速压缩机，能够精确测量自燃延迟时间。这两个平台有助于实现拟议的目的/目标。

The proposed work aims to evaluate ignitability of less known hydrogen-air mixtures, and obtain a greater understanding of Deflagration-to-Detonation mechanism of hydrogen-air mixtures. Hydrogen explosion is a significant safety concern during current nuclear decommissioning, waste and product storage activities in the UK, e.g. at Sellafield. Ignition and flammability research on hydrogen-air provides technical expertise and knowledge for assessing the proneness and onset of DDT, and developing better informed safety cases to remove conservatisms, reduce cost, timescales in nuclear decommissioning operations where hydrogen explosion hazards may exist. The University of Leeds has announced a new research strategy 'research transformed' to achieve a low carbon future. The proposed work on nuclear energy aligns with the University's Climate Plan, putting £150 million towards achieving the goal of net zero greenhouse gas emissions by 2030. The proposed research on the management of hydrogen is a significant conventional safety hazard at many plants on Sellafield site, and will continue to be so during normal plant operations for decades to come. Leeds Combustion group has a range of explosion vessels in Thermofluids lab G50: a world-renowned fan-stirred explosion vessel, capable of creating high levels of turbulence; a Rapid Compression Machine, capable of the accurate measurements of auto-ignition delay times. These two rigs help obtain the proposed aims/objectives.