HydrogEn combuSTion In Aero engines

航空发动机中的氢燃烧

• 批准号: 10042258
• 金额: $ 24.7万
• 依托单位: UNIVERSITY OF CAMBRIDGE
• 依托单位国家: 英国
• 项目类别: EU-Funded
• 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=10042258
• 关键词: HydrogEn; combuSTion; Aero; engines

To reduce climate impact of aviation, decarbonisation is a major challenge. Current combustion chambers are burning hydrocarbon fuels, such as kerosene or more recently emerging SAF products. Hydrogen is also considered today as a promising energy carrier but the burning of hydrogen creates radically new challenges which need to be understood and anticipated. HESTIA specifically focuses on increasing the scientific knowledge of the hydrogen-air combustion of future hydrogen fuelled aero-engines. The related physical phenomena will be evaluated through the execution of fundamental experiments. This experimental work will be closely coupled to numerical activities which will adapt or develop models and progressively increase their maturity so that they can be integrated into industrial CFD codes. Different challenges are to be addressed in HESTIA project in a wide range of topics: - Improvement of the scientific understanding of hydrogen-air turbulent combustion: preferential diffusion of hydrogen, modification of turbulent burning velocity, thermoacoustics, NOx emissions, adaptation of optical diagnostics; - Assessment of innovative injection systems for H2 optimized combustion chamber: flashback risk, lean-blow out, stability, NOx emission minimisation, ignition; - Improvement of CFD tools and methodologies for numerical modelling of H2 combustion in both academic and industrial configurations. To this end, HESTIA gathers 17 universities and research centres as well as the 6 European aero-engine manufacturers to significantly prepare in a coherent and robust manner for the future development of environmentally friendly combustion chambers.

为了减少航空业对气候的影响，脱碳是一项重大挑战。目前的燃烧室燃烧烃类燃料，如煤油或最近出现的SAF产品。氢也被认为是一种有前途的能源载体，但氢的燃烧产生了全新的挑战，需要理解和预期。HESTIA特别关注增加未来氢燃料航空发动机的氢-空气燃烧的科学知识。相关的物理现象将通过基本实验的执行进行评估。这项实验工作将与数值活动紧密结合，这些活动将适应或开发模型，并逐步提高其成熟度，以便将其集成到工业CFD代码中。HESTIA项目将在广泛的主题范围内解决不同的挑战：-提高对氢气-空气湍流燃烧的科学理解：氢气的优先扩散，湍流燃烧速度的修改，热声学，NOx排放，光学诊断的适应性; -评估用于H2优化燃烧室的创新喷射系统：闪回风险、贫油熄火、稳定性、氮氧化物排放最小化、点火; -改进学术和工业配置中H2燃烧数值建模的CFD工具和方法。为此，HESTIA汇集了17所大学和研究中心以及6家欧洲航空发动机制造商，以一致和稳健的方式为未来开发环保燃烧室做好准备。