Cryogenic hydrogen jet flames

低温氢喷射火焰

• 批准号: 2749038
• 金额: --
• 依托单位: Swansea University
• 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-2749038
• 关键词: Cryogenic; hydrogen; jet; flames

Hydrogen plays an important role to reach net-zero emissions by 2050. The transport and storage of cryogenic liquid hydrogen (CryoLH2) is considered the most effective option for scaling up the hydrogen supply infrastructure. Ignition of unintended release of CryoLH2 would result in jet flames. The underlying physics is complex involving cryogenic jets, flashing, intense phase change, droplets, spray, ignition, and combustion. Insight is lacking about the evolution of flame characteristics and modes with the variation of ignition location and timing. The project aims to gain such insight through numerical simulations with validated models and formulate recommendations for the safety of CryoLH2. The specific objectives include: 1. Develop and validate a robust solver based on the in-house code HiSMART for the ignition and combustion of cryogenic liquid hydrogen jets; 2. Using the solver to gain insight and fill the knowledge gaps about the flame characteristics of CryoLH2.

到2050年，氢在达到零排放量的重要作用。低温液体氢（Cryolh2）的运输和存储被认为是扩大氢供应基础设施的最有效选择。冰冻2释放的点火会导致喷气火焰。基础物理学是复杂的，涉及低温喷气机，闪烁，强烈的相变，液滴，喷火，点火和燃烧。洞察力缺乏对火焰特征和模式的演变，而点火位置和时机的变化。该项目旨在通过使用经过验证的模型的数值模拟来获得这种见解，并为Cryolh2的安全提出建议。具体目标包括：1。基于内部代码HISMART开发和验证稳健的求解器，以点火和燃烧低温液体氢射流； 2。使用求解器获得洞察力并填补有关Cryolh2火焰特征的知识差距。