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，氢在实现净零排放方面发挥着重要作用。低温液态氢（CryoLH2）的运输和储存被认为是扩大氢供应基础设施的最有效选择。点燃意外释放的CryoLH2会导致喷射火焰。潜在的物理是复杂的，涉及低温射流，闪烁，强烈的相变，液滴，喷雾，点火和燃烧。由于点火位置和时间的变化，对火焰特性和模式的演变缺乏认识。该项目旨在通过验证模型的数值模拟来获得这些见解，并为CryoLH2的安全性制定建议。具体目标包括：1。基于内部代码HiSMART开发和验证一个强大的求解器，用于低温液氢射流的点火和燃烧；2. 利用求解器深入了解并填补了关于CryoLH2火焰特性的知识空白。