Towards Net-Zero Emissions by 2050: From What (Fuels) to How (Burns) (SHELL)

到 2050 年实现净零排放：从什么（燃料）到如何（燃烧）（壳牌）

• 批准号: 2745407
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2745407
• 关键词: Towards; Net; Zero; Emissions; 2050

This project is in line with the UK strategic plan for decarbonisation for the sector, i.e. the Transport Decarbonisation Plan, with the aim to achieve 'net zero' greenhouse gas emissions by 2050. Two research questions will be answered: what will be the carbon free fuels for the future transport and energy sectors? How do these fuels perform in terms of the burning characteristics? Particular attentions are given to the turbulent combustion of hydrogen (and/or ammonia) that takes place in nearly all combustion-related applications, including gas turbines, boilers, furnaces, engines, explosions and fires. A thorough understanding of the basic phenomena of turbulent combustion is essential to develop advanced combustion technologies to achieve zero emissions and high energy efficiency. Premixed turbulent combustion attracts the most attention from experimentalists, modellers, and theoreticians, due to a complex turbulence-chemistry interaction. This strong interaction brings the greatest challenge to measure a turbulent burning velocity that is defined as the gas velocity into the flame front. Conventionally, the pressure rise method is capable to be used for deriving the laminar burning rate from a pressure trace inside a constant volume combustion vessel. However, this method brings more statistic uncertainties if strong turbulences get involved in the combustion process. Other methods, e.g. Schlieren photography, often assume an adiabatic density/temperature of burned gas and do not take into account the stretch effect. Therefore, this project seeks to accurately characterize the premixed turbulent flame by measuring the burning velocity and the flame structure and kinetics analysis using laser analysis. The outcome of the research will be a unique technique of high speed photography of explosive flame propagation and combustion kinetics. This will greatly enhance the understanding of premixed turbulent flame, as well as characterize the turbulent burning velocity of newly developed carbon-free fuels and ensure their successful application in the context of the global energy transition. The student will become part of an established Combustion research group. Leeds hosts the EPSRC Centre for Doctoral Training in Fluid Dynamics, of which the student will be an associate member, benefiting from the additional training provided.

该项目符合英国的交通脱碳战略计划，即交通脱碳计划，旨在到2050年实现温室气体排放“净零”。将回答两个研究问题：什么是未来交通和能源部门的无碳燃料？这些燃料在燃烧特性方面表现如何？特别关注的是氢气（和/或氨）的湍流燃烧，发生在几乎所有的燃烧相关的应用，包括燃气轮机，锅炉，熔炉，发动机，爆炸和火灾。深入了解湍流燃烧的基本现象对于发展先进的燃烧技术以实现零排放和高能效是至关重要的。预混湍流燃烧由于其复杂的热力学-化学相互作用，引起了实验研究者、模型研究者和理论研究者的广泛关注。这种强烈的相互作用给测量湍流燃烧速度带来了最大的挑战，湍流燃烧速度被定义为进入火焰前沿的气体速度。传统上，压力上升法能够用于从定容燃烧容器内的压力迹线导出层流燃烧速率。但是，当燃烧过程中存在强干扰时，该方法会带来更多的统计不确定性。其他方法，例如纹影摄影，通常假设燃烧气体的绝热密度/温度，并且不考虑拉伸效应。因此，本项目旨在通过测量燃烧速度和火焰结构以及使用激光分析进行动力学分析来准确地表征预混湍流火焰。该研究的成果将是一种独特的爆炸火焰传播和燃烧动力学高速摄影技术。这将大大提高预混湍流火焰的理解，以及表征新开发的无碳燃料的湍流燃烧速度，并确保其在全球能源转型背景下的成功应用。学生将成为一个既定的燃烧研究小组的一部分。利兹是EPSRC流体动力学博士培训中心的所在地，该学生将成为该中心的准成员，受益于所提供的额外培训。